EZ l w

Transcription

EZ l w

This manual is for the EZflow product,
but the same principles apply to EZ-Drain.
EZflow Drainage Systems
Design and Installation Manual
EZfl0w
INTRODUCTION
2
COMPONENT SPECS
3
PIPE
AGGREGATE
MESH
USAGE GUIDELINES
4
APPLICATIONS
5
FRENCH DRAIN
6
INTERCEPTOR DRAIN
8
CURTAIN DRAINS
9
LANDSCAPE DRAINS
10
GOLF COURSE DRAINS
11
FOUNDATION DRAINS
12
RETAINING WALL DRAINS 13
ROOF RUNOFF DRAINS
14
BASEMENT/CRAWLSPACE
DEWATERING
15
WARRANTY
1
Contact NDS at 1-800-726-1994 for additional information.
16
JULY 2010
®
INTRODUCTION
INTRODUCTION
INTRODUCTION
NDS is the industry’s primary source for solutions in stormwater management, efficient landscape
1501-A-MESH
1501-FB-MESH
1501-FC-MESH
The purpose
this manual
is to provide specific
and
installation
information
pertinent
to themarkets.
use of EZflow
drainage
irrigation,
andof water
management
valves design
for
the
residential
and non-residential
In our
drive
1501-A-MESH
1501-FB-MESH
1501-A-MESH
1501-FC-MESH
products inThe
French,
interceptor,
curtain,islandscape,
golf course,
foundation,
retaining
wall,manual
roof pertinent
runoff
purpose
of this manual
to provide specific
design
and
The
installation
purpose
of
information
this
is
toand
provide
tobasement/crawlthe specific
use of EZflow
design
drainage
and ins
to space
innovate
andapplications.
provide
our
customers
withofhigh-performing
solutions
fitted
towall,
theFor
changing
needs
drainage
revisedcurtain,
versionlandscape,
this manual
the
previous
version.
more
infor
products
in French, Each
interceptor,
golf supersedes
course,
products
foundation,
in
French,
retaining
interceptor,
roof
curtain,
runoff
landscape,
andmation,
basement/crawlgolf course,
15"
15"
15"
of please
our environment,
we
have expanded
our green-build
products
and
sustainable
applications
to infor
contact
EZflow
by Infiltrator
at 1-800-221-4436
or your local
representative.
space
drainage
applications.
Each revised
version
of thissales
manual
space
drainage
applications.
Each
revised
version
of this
manu
supersedes
the previous
version.
For
more
mation,
15"
15"
15"
15"
RODUCTION
INTRODUCTION
please
contact
EZflow
by
Infiltrator
at
1-800-221-4436
or
your
please
local
contact
sales
representative.
EZflow
by
Infiltrator
at
1-800-221-4436
or
your
lo
include EZflow, a pre-engineered French Drain that is not only sustainable, but also cost effective
NO PIPE
6" PIPE instructions6"and
PIPElocal and/or state code.
EZflow drainage products must be used in conjunction
with manufacturer’s
(BOTTOM) 6" PIPE (CENTERED)
and simpleEZflow
to install.
NO PIPE
PIPE
6"and
PIPE
drainage products must be used in conjunction
withEZflow
manufacturer’s
drainage products
instructions
must
belocal
usedand/or
in conjunction
state NO
code.
with man
(BOTTOM)
EZflow Drainage Products
1501-A-MESH
1501-FB-MESH
1501-FC-MESH
EZflow Drainage
Products
(CENTERED)
701A-MESH 701F-MESH
EZflow Drainage Products
701A-MESH
701F-MESH
701A-MESH
7
The purpose
of
this manual
isfeet
to provide
designpipe
ad installation
information
pertinent
to theaggregate
use 1501-FC-MESH
of EZflow
EZand enclosed
1501-A-MESH
1501-A-MESH
1501-FB-MESH
1501-FC-MESH
EZflow
drainage
bundles
are 101501-FB-MESH
in lengthspecific
with
a slotted
surrounded
by
expanded
polystyrene
in
drainage
products
in
French,
interceptor,
curtain,
landscape,
gold
course,
foundation,
retaining
wall,
roof
runoff
and
geotextile
mesh.
Configurations
are
available
in
7-inch
bundles
with
or
without
a
3-inch
pipe,
10-inch
bundles
with
or
without
a
4-inch
EZflowof
bundles
aredesign
10
feet
in length
with
ainformation
slotted
pipe
surrounded
drainage
bundles
byuse
expanded
polystyrene
feet
aggregate
with
a slotted
and enclosed
pipe su
1501-A-MESH
1501-A-MESH
1501-FB-MESH
1501-FB-MESH
1501-FC-MESH
1501-FC-MESH
he purpose of
The
thispurpose
manual
isdrainage
this
to15"
provide
manual
specific
is to provide
specific
and
installation
design
and
installation
pertinent
information
to the
pertinent
of are
EZflow
to 10
the
drainage
useinoflength
EZflow
drainage
7"
7"EZflow
15"
15" a 6-inch
pipe,
and 15-inch
bundles
with
or without
pipe.inAccessories
include
3-inch,
4-inch,
and 6-inch
internal
couplers,
end
caps,
basement/crawl-space
drainage
applications.
Each
revised
version
of
this
supersedes
the
previous
version.
For
geotextile
mesh.
Configurations
are
available
7-inch
bundles
geotextile
with
ormanual
without
mesh.
Configurations
a wall,
3-inch
pipe,
10-inch
are
available
bundles
in 7-inch
with
orbundles
without with
a 4-in
o
roducts in French,
products
interceptor,
in15"French,
curtain,
interceptor,
landscape,
curtain,
golf
landscape,
course,
foundation,
golf
course,
retaining
foundation,
wall,
retaining
roof
runoff
and
roof
basement/crawlrunoff
and
basement/crawl7"
7"
7"
15" 10-inch
15" a bundles
15"with
15" 4-inch,
internal
tees,
and
internal
wyes.
The
and
15-inch
arelocal
available
the
pipe3-inch,
located
inwith
the center
or15"
bottom
of the
bundle
information
please
contact
NDS
atwith
1-800-726-1994
or your
sales
representative
pipe,
and
15-inch
bundles
or
without
6-inch
pipe.
Accessories
pipe,
and
include
15-inch
bundles
or
and
without
6-inch
a internal
6-inch
pipe.
couplers,
Accessories
end cap
pace drainage
applications.
drainage
Each
applications.
revised
version
Each revised
ofrequired
this version
manual
of
this
supersedes
the
supersedes
previousthe
version.
the
previous
Forbe
more
version.
infor
For
mation,
more
infor
mation, of
for space
varying
applications.
Unless
specifically
byand
code
or manual
other
requirement,
pipe
can
either
centered
or
at
the
15" 10-inch
15"
15"
15" available
15"
15"pipe
internal
tees, and
internal
wyes. The
15-inch
bundles
internal
are
tees, and
with
internal
the
wyes.
located
The
10-inch
in the center
and
15-inch
or bottom
bottom
bundles
of theare
bund
av
NO
PIPE
3" PIPE
NO
PIPE
6"
PIPE
6"
PIPE
lease contact
EZflowcontact
byvarying
Infiltrator
EZflow
atby
1-800-221-4436
Infiltrator
1-800-221-4436
or your
sales
or your
representative.
local
representative.
theplease
bundle.
Illustrations
shown
herein
areatgeneric
andlocal
may
show
either
configuration.
applications.
Unless
specifically
required
by
code
for
orsales
other
varying
requirement,
applications.
theand
Unless
pipe
can
specifically
be either
required
centered
by
orcode
at theorbottom
other
EZ
EZflow
flow for
drainage
products
must
be
used
in
conjunction
with
manufacturer’s
instructions
local
and/or
state
code.
(CENTERED)
(BOTTOM)
(CENTERED)
NO PIPE
NO PIPE
3" PIPE
3
PIPE Illustrations
PIPE
6" PIPE
6" PIPE
6" generic
PIPE
6" generic
PIPE
theNO
bundle.
shown herein are
and may show
theNO
either
bundle.
configuration.
Illustrations
shown herein are
and may show either
7-inch
Bundles
10-inch
Bundles
NO PIPE
NO PIPE
6"
PIPE
6" PIPE
6"and
PIPE
6"and
PIPE
EZflow drainage
EZflow
products
drainage
mustproducts
be used must
in conjunction
be used
in
with
conjunction
manufacturer’s
with
manufacturer’s
instructions
instructions
local and/or
state
localcode.
and/or state code.
(BOTTOM)
(CENTERED) (BOTTOM)
(CENTERED)
7-inch Bundles
(BOTTOM)
(BOTTOM)
(CENTERED)
7-inch
Bundles
10-inch
Bundles
(CENTERED)
1001-A-MESH 1001-FB-MESH 1001F-MESH
701A-MESH 701F-MESH
Drainage
Products
EZ
EZflow
701A-MESH 701F-MESH
flow Drainage
EZflow
Products
Drainage Products
(
(CENTERED)
1001-FB-MESH
1001-A-MESH
701A-MESH
701F-MESH1001F-MESH
10-inch Bun
1001-A-MESH
701A-MESH
701F-MESH
701A-MESH
701F-MESH
1501-A-MESH
1501-FB-MESH
01-A-MESHEZflow
1501-FB-MESH
1501-FC-MESH
1501-FC-MESH
EZ
flow
drainage7"bundles
are 10 feet in length
with a slotted
pipe surrounded
polystyrene aggregate and enclosed in
10"
10"by expanded10"
7"
geotextile
mesh.
Configurations
arewith
available
in 7-inch
or surrounded
without
a7"3-inch
pipe,7"10-inch
bundles
with
or without
a 4-inch
pipe,
ow drainage
EZflow
bundles
drainage
are7"10
bundles
feet in length
are
feet
ainslotted
length
pipe
with bundles
asurrounded
slottedwith
pipe
by
expanded
polystyrene
by expanded
aggregate
polystyrene
aggregate
enclosed
in
and
enclosed
10"
10"
10" and
10"in
7" 10
and
15-inch
bundles
or without
aavailable
6-inch
pipe.
Accessories
include
3-inch,
4-inch,
and bundles
6-inch
internal
caps.
EZ a 4-inch
EZflow
extile mesh.
geotextile
Configurations
mesh.
Configurations
arewith
available
inare
7-inch
bundles
in 7-inch
with orbundles
without
with
a 3-inch
or
without
pipe,
10-inch
a 3-inch
pipe, 10-inch
with orcouplers,
bundles
without with
aend
4-inch
or
without
7" internal wyes.
7" 7" The 15-inch
7" bundles are available with the pipe located in the center or
5", and 15-inch
15"can
15"
15" 15"
15" and
bundles
also
used
with
tees,
NO
PIPE3-inch,include
4"
PIPE 3-inch,
4"
PIPE
pipe,
bundles
and
15-inch
with
orbundles
without
with
a internal
6-inch
or without
pipe.
a
Accessories
6-inch pipe.include
Accessories
4-inch,
and 6-inch
4-inch,
internal
and 6-inch
couplers,
internal
end caps,
couplers, end caps,
NO
PIPE
3" be
PIPE
(BOTTOM)
(CENTERED)
(CENTERED)
bottom
of
the
bundle
for
varying
applications.
Unless
specifically
required
by
code
or other
requirement,
the
be
either of
centered
or PIPE
nal tees, and
internal
internal
tees,
wyes.
and
The
internal
10-inch
wyes.
and
The
15-inch
10-inch
bundles
and
15-inch
are
available
bundles
with
arethe
available
pipe
located
with
the
pipe
the
center
located
or4"in
bottom
thepipe
center
of can
theorbundle
bottom
the bundle
NO
PIPE
NO
4"inPIPE
PIPE
NO
PIPE
NO
PIPE
3" PIPE
3"
PIPE
at the
bottom
of the
bundle.
Illustrations
shown
herein
are
generic
may
showcan
either
configuration.
arying applications.
for
varying
Unless
applications.
specifically
Unless
required
specifically
by
code
required
or other
byrequirement,
code
orand
other
the
requirement,
pipe
be
the
either
pipe
centered
can be
either
or at the
centered
bottomorofat the bottom of
(BOTTOM)
(CENTERED)
(CENTERED)
(CENTERED)
NO PIPE
PIPE
3" NO
PIPE
3" PIPE
PIPE
O
PIPE Illustrations
6" are
PIPE
6" PIPE
6"
PIPE
6" generic
PIPEherein
bundle.
theNO
bundle.
shown
Illustrations
herein
shown
andare
may
generic
show and
either
may
configuration.
show either configuration.
(BOTTOM)
(CENTERED)
(BOTTOM)
(CENTERED)
(CENTERED)
(CENTERED)
15-inch
Bundles
1001-FB-MESH 1001F-MESH
1001-A-MESH
ch Bundles
7-inch
Bundles
10-inch Bundles
10-inch Bundles
15-inch
Bundles
15-inch
Bundles
1501-A-MESH
1501-FB-MESH
1501-FC-MESH
1001-FB-MESH
1001-A-MESH 1001-FB-MESH
1001-A-MESH
1001F-MESH
1001F-MESH
EZ-0701A
EZ-0701F
EZ-1001A
EZ-1001F
701A-MESH1501-A-MESH
701F-MESH
1A-MESH 701F-MESH
1501-FB-MESH
1501-A-MESH
1501-FB-MESH
1501-FC-MESH
10"
10"
10"
"
O PIPE
10"
10"
15"
15"
10"
10"
7"
15" 4" PIPE
15"
15"
4"
PIPE
(BOTTOM) 4" PIPE
(CENTERED)
NO PIPE
4" PIPE
NO PIPE
6" PIPE
6" PIPE
(BOTTOM)
(CENTERED)
NO
PIPE
NO
PIPE
4" PIPE
PIPE NO
3"PIPE
PIPE
3" NO
PIPE
(BOTTOM) 6" PIPE (CENTERED)
6" PIPE
(BOTTOM)
(CENTERED) (CENTERED)
(BOTTOM)
(CENTERED)
15"
7" 7"
NO PIPE
10"
10"
10"
15"
NO PIPE
4" PIPE
NO PIPE
(BOTTOM)
(CENTERED)
Accessories
701A-MESH 701F-MESH
Accessories
nch
Bundles
15-inch
Bundles
1001F-MESH 1001F-MESH
O PIPE
O PIPE
15"
4" PIPE
4" PIPE
(BOTTOM)
(CENTERED)
4" PIPE
6" PIPE
6" PIPE
(CENTERED)
(BOTTOM)
(CENTERED)
7"
7"
End Cap
NO PIPE
Wye
Wye
Coupler
Coupling
End
End Cap
Cap Elbow
3" PIPE
(CENTERED)
Tee
Elbow
Wye
Accessories
cessories
701A-MESH
701F-MESH
1A-MESH 2 701F-MESH
Contact
NDS
10"
10"at 1-800-726-1994
10"
Page
2
"
15"
701A-MESH 701F-MESH
1501-A-MESH
1501-FB-MESH
01-A-MESH EZ-1501A
1501-FC-MESH 1501-FC-MESH
EZ-1501
7" 1501-FB-MESH
7" EZ-1501FB
10"
10"
10"
7"
7"
15"
15"PIPE
15"
NO
3" PIPE15" 15"
(CENTERED)
NO
PIPE NO PIPE
4" PIPE
4" PIPE
4" PIPE 3" PIPE
(BOTTOM)(CENTERED)
(BOTTOM)
(CENTERED)
(CENTERED)
Coupler
Tee
NO PIPE
6" PIPE
6" PIPE
6" PIPE
6" PIPE
(BOTTOM)
(CENTERED) (CENTERED)
Coupler(BOTTOM)
Tee
10"
Accessories
701A-MESH 701F-MESH
0"
5"
10"
10"
1501-FC-MESH
10"2
Page
7" 7"
7"
10"
for additional information.
Contact Infiltrator Systems at 1-800-221-4436 for additional information.
10"
10"Contact
10" Systems at 1-800-221-4436
10"
Page
2
Infiltrator
for additional information.
Con
EZfl0w
COMPONENT SPECS
®
Slotted Drain Pipe
The black, single-wall, corrugated EZflow drainage pipe is
constructed of polyethylene resins with a high recycled content,
typically greater than 90%. Nominal 3-inch diameter pipe is
utilized in the 7-inch bundle, 4-inch pipe in the 10-inch bundle,
and 6-inch pipe in the 15-inch bundle. Slots are punched during
extrusion of the pipe, slot orientation is “random” and pipe rotation
within each bundle is inconsequential to drainage system
function. The pipe is aligned either along the center axis or
touching bottom edge of the bundle, depending upon application
and code requirements. EZflow drainage pipe meets ASTM F405
Standard Specification for Corrugated Polyethylene (PE) Pipe and
Fittings. A roughness coefficient of 0.015 (Manning’s “n”) should
be used in flow calculations for 3- to 6-inch corrugated polyethylene pipe with a corrugated interior.
liGhtweiGht expAnded polystyrene
AGGreGAte offers structurAl
inteGrity And resists compAction
enGineered flow chAnnels
increAse void spAce creAtinG
improved wAter flow And
GreAter storAGe
Geosynthetic Aggregate
The blue geosynthetic EZflow drainage aggregate is manufactured from 100% recycled materials. Made from expanded
polystyrene (EPS), the aggregate beads have a fine to medium
cell structure and two sizes are utilized; the smaller in the 7-inch
bundles and the larger in the 10- and 15-inch bundles. Both
beads are cubical and have protuberances that provide
increased pore space and flow characteristics for drainage
applications. For storage applications, a porosity of 40% is
recommended for consolidated EPS aggregate within the bundle.
30 sieve
Geotextile mesh
Geotextile Mesh
The black, knit geotextile mesh sock holds the EZflow drainage
bundle together. The 30-sieve geotextile mesh fabric used for the
sock provides appropriate permeability for drainage while limiting
the migration of soils into the bundle and drainage system. The
geotextile mesh has an apparent opening size of 0.60 mm, a unit
weight between 2.5 to 3.5 ounces per square yard, and strength
of 100 pounds per square inch in accordance with ASTM D-3786.
The flow rate through the geotextile mesh, as provided by the
manufacturer, is 300 gallons/square foot/minute at 3 inches of head
in accordance with ASTM D-4491.
3
Geosynthetic
AGGreGAte
3”, 4” or 6” slotted pipe
Page 3
USAGE GUIDELINES
USAGE GUIDELINES
Usage Guidelines
Usage Guidelines
SAFE HANDLING
SAFE HANDLING
Individual
EZflow drainage bundles are 10 feet in length and range in weight from 2 pounds for the 7-inch aggregate-only bundles to 13
pounds forEZflow
the 15-inch
bundles
with are
pipe.
bundles
are
wrapped
together
plastic
for7-inch
shipping.
The clear plastic
wrapping
Individual
drainage
bundles
10Several
feet in length
and
range
in weight
fromin2 clear
pounds
for the
aggregate-only
bundles
to 13
must
notfor
bethe
installed
along
with with
the bundle
and should
be removed
prior together
to installation
and
disposed
of properly.
pounds
15-inch
bundles
pipe. Several
bundles
are wrapped
in clear
plastic
for shipping.
The clear plastic wrapping
must not be installed along with the bundle and should be removed prior to installation and disposed of properly.
BENDS AND CORNERS
BENDS
AND CORNERS
EZflow drainage aggregate-only bundles can bend around and into most corners with ease. Bundles with pipe require appropriate pipe
EZflow
drainage
aggregate-only
bundles
can bend around
and into most corners with ease. Bundles with pipe require appropriate pipe
couplers
and elbows
to accommodate
ninety-degree
bends.
couplers and elbows to accommodate ninety-degree bends.
PIPE CONNECTIONS
PIPE
CONNECTIONS
Bundles with pipe require couplers to make connections between bundles and other system piping components. Insert the appropriately
Bundles
with pipe
couplers
to until
makethe
connections
between
bundles
and the
other
system piping
the appropriately
sized coupler
into require
the EZflow
bundle
coupler clicks
into place,
insert
remaining
couplercomponents.
end into theInsert
next bundle
or system
sized
couplerand
intoclick
the EZflow
bundle
thethis
coupler
clicks into
place, insert
remainingcatch
coupler
end into
the nextand
bundle
or system
component
into place
to until
finish
connection.
Connections
tothe
cleanouts,
basins,
manholes
other
component and
into
place or
tothe
finish
connection.
Connections
to cleanouts,
basins, manholes and other system
components
may click
require
gaskets
use this
of grout
to form soil
tight and watertight
seals catch
as needed.
components may require gaskets or the use of grout to form soil tight and watertight seals as needed.
REDUCING BUNDLE LENGTH
REDUCING
BUNDLE LENGTH
If a ten-foot EZflow bundle length is not required, the bundle can be cut and retied to the desired length with the original tie, wire or duct
If a ten-foot
EZflow
bundle
length
is not
required,
bundle can
be cutlength
and retied
to reduced
the desired
length with the original tie, wire or duct
tape,
and the
excess
beads
can be
placed
in thethe
excavation.
Bundle
can be
as follows:
tape, and the excess beads can be placed in the excavation. Bundle length can be reduced as follows:
First, measure the desired length plus one-half the product diameter from one end of the bundle.
First, measure the desired length plus one-half the product diameter from one end of the bundle.
Second, cut the mesh around the bundle circumference at the measured distance, remove excessive EPS aggregate from mesh and
Second,
the mesh
around theinbundle
circumference at the measured distance, remove excessive EPS aggregate from mesh and
place thecut
excess
EPS aggregate
the trench.
place the excess EPS aggregate in the trench.
Third, twist the mesh until the EPS aggregate is held firmly inside the bundle and secure the mesh. If the bundle has a pipe, gather the
Third, against
twist thethe
mesh
aggregate
is held
firmly
insidesecure
the bundle
mesh.
If tie
theand
bundle
has a pipe, gather the
mesh
pipeuntil
untilthe
theEPS
aggregate
is held
firmly
in place,
meshand
intosecure
place,the
apply
a zip
tighten.
mesh against the pipe until the aggregate is held firmly in place, secure mesh into place, apply a zip tie and tighten.
Lastly, for a bundle with pipe trim any excess pipe down to the desired length.
Lastly, for a bundle with pipe trim any excess pipe down to the desired length.
INSTALLATION IN FINE-GRAINED SOILS
INSTALLATION
IN FINE-GRAINED SOILS
If a system needs to be installed in soils that have more than 50% by content silt or clay particles, a secondary fabric with the appropriate
If
a systemopening
needs to
be to
installed
soils
that have
more than
50% by around
content the
silt or
clay particles,
secondary
fabric
with theorappropriate
apparent
size
match in
soil
conditions
should
be wrapped
circumference
ofathe
system. An
engineer
landscape
apparent should
opening
to match
conditions
should be wrapped
the circumference of the system. An engineer or landscape
architect
besize
consulted
to soil
determine
the appropriate
fabric foraround
such conditions.
architect should be consulted to determine the appropriate fabric for such conditions.
PRODUCT STORAGE
PRODUCT
STORAGE
EZflow drainage products should not be exposed to direct sunlight for periods exceeding 60 days as the mesh fabric may become
EZflow
drainage
should
be exposed
to direct
sunlightIt for
periods exceeding
60 days
as the mesh
fabric
become
compromised
andproducts
yellowing
of thenot
aggregate
has been
observed.
is recommended
that EZflow
drainage
products
be may
stored
inside
compromised
yellowing
the aggregate
hascovered
been observed.
is recommended
drainage
be stored
inside
and
away fromand
direct
sunlight.ofProduct
should be
securely It
with
a light-blockingthat
tarpEZflow
if stored
outsideproducts
for extended
periods.
and away from direct sunlight. Product should be covered securely with a light-blocking tarp if stored outside for extended periods.
STRUCTURAL CAPABILITY
STRUCTURAL
CAPABILITY
EZflow drainage systems are designed for use in residential and light commercial non-traffic drainage applications. EZflow drainage
EZflow drainage
systems
are designed
forpass
use construction
in residentialwheel
and light
commercial
non-traffic
drainage
applications.
drainage
systems
are designed
to withstand
single
loading
and occasional
light
vehicular
load of up toEZflow
16,000
lbs per
systems
are designed
to withstand
single
wheel loading
and occasional
vehicular
load
of up tosystems
16,000 lbs
axle provided
the product
is installed
in a pass
trenchconstruction
with 12” of compacted
fill placed
over the light
bundles.
EZflow
drainage
are per
not
axle
provided
product
is installed
a trench
with 12”
of compacted
placed over
the bundles.
EZflowordrainage
systems are not
designed
to bethe
placed
under
live-loadintraffic
conditions
such
as paved orfillnon-paved
roadways,
driveways,
parking areas.
designed to be placed under live-load traffic conditions such as paved or non-paved roadways, driveways, or parking areas.
4
Page 4
Contact
Page 4
NDS at 1-800-726-1994 for additional information.
EZfl0w
APPLICATIONS
®
Applications
Interceptor or Curtain
Foundation
Roof Runoff
Landscape
French Drain
Retaining Wall
EZflow drainage systems are appropriate for a wide range of applications and are a convenient alternative to traditional stone and pipe
drainage, storage and infiltration systems. EZflow drainage systems can be used as a substitute for stone in most applications where the
stone is not utilized for structural support. When stone does serve as structural support, such as a base course in a roadway or backfill
in a mechanically-stabilized-earth retaining wall, EZflow should not be used. A professional engineer, landscape architect or other qualified
design professional should be consulted for complex applications.
Product selection is relative to the desired application and benefits from establishing anticipated flow into, through and out of a proposed
drainage system configuration. Selection considerations include: bundle sizing and storage volume, the presence or absence of pipe,
pipe size and location within the bundle, and arrangement of bundles. Design factors may include: length of system, watershed area,
soil type and permeability, groundwater levels and system discharge opportunities. EZflow drainage storage volumes and pipe discharge
rates are listed below. Basic product selection, system configuration considerations and installation methods are discussed in each
application description that follows.
Storage and Flow for EZflow Drainage Bundles (45% void space amongst consolidated EPS aggregate)
Aggregate-Only Bundles
Pipe Bundles
Product
5
Storage Volume
Flow Capacity
(gallons/10-ft bundle) (gpm/ft @ 1% slope)
Product
Storage Volume
Flow Capacity
(gallons/10-ft bundle) (gpm/ft @ 1% slope)
701-A
EZ-0701A
8.8
37.1
701-F
EZ-0701F
11.4
80.8
1001-A
EZ-1001A
17.2
75.7
1001-F/1001-FB
EZ-1001F
21.5
130.9
1501-A
EZ-1501A
36.5
170.3
1501-F/1501-FB
EZ-1501F/EZ-1501FB
45.8
345.0
Page 5
APPLICATIONS
French Drains
Subsurface drainage systems have been in common use for centuries. They take many forms, but are all similar in design and function
to the traditional French drain. French drains are excavated trenches filled with aggregate surrounding a slotted or perforated pipe that
conveys excess surface and groundwater to a discharge point away from the drainage area. EZflow drainage products can be used as
a substitution for conventional aggregate in French drain systems.
PLACEMENT
EZflow drainage French drains should be laid out strategically to dewater irregular, poorly drained areas. A defined pattern such as a
herring bone and gridiron should be used to drain complete areas including lawns, athletic fields, golf course greens and sand traps.
These patterns include laterals that drain to collectors that discharge to an outfall. In general, laterals should not be longer than 50 feet
and collectors no longer than 100 feet without increasing the pipe diameter downstream. In addition, the slope of each downgradient
run should increase throughout the length of the system.
Trench depth and spacing will vary depending on soil texture of the area being drained. Trench depth can also be limited by outlet
conditions in flatter areas. Lines may be spaced widely and deeply in sandy soils, and are generally placed shallower and closer together
in clay soils.
IRREGULAR
GRIDIRON
HERRING BONE
DRAINAGE AREA
OBSTRUCTION
PRODUCT
The 7-inch EZflow drainage bundles with integrated 3-inch pipe are appropriate for small area residential subsurface drainage systems.
10-inch bundles with 4-inch pipe can be used to drain areas of up to two acres in poorly drained organic soils. In larger areas or if there
is over 200 feet of pipe upstream, the 15-inch bundles with 6-inch pipe are recommended.
MINIMUM
MINIMUM6 6INCHES
INCHES
MINIMUM 6BACKFILL
INCHES
PERMEABLE
PERMEABLE
BACKFILL
PERMEABLE BACKFILL
VEGETATIVE
VEGETATIVE
COVER
COVER
EZflow BUNDLE
EZflow
BUNDLE
WITH
PIPE
WITH PIPE
TYPICAL FRENCH DRAIN
TYPICAL FRENCH DRAIN
ALTERNATE CONFIGURATIONS
ALTERNATE CONFIGURATIONS
CROWN TRENCH
CROWN
TRENCH
TO PREVENT
TO
PREVENT
SADDLING
SADDLING
EZflow
EZflow
AGGREGATE
AGGREGATE
ONLY BUNDLE
ONLY BUNDLE
EZflow BUNDLE
EZflow
BUNDLE
WITH
PIPE
WITH PIPE
NATIVE SOIL
NATIVE SOIL
Minimum Recommended Depth of Cover*
FRENCH DRAIN IN CLAY SOILS
FRENCH DRAIN IN CLAY SOILS
CROWN TRENCH
CROWN
TRENCH
TO PREVENT
MINIMUM 4 INCHES
TO SADDLING
PREVENT
MINIMUM
INCHES
BACKFILL4IN
SADDLING
BACKFILL
IN
LOW-PERMEABILITY
VEGETATIVE
LOW-PERMEABILITY
CLAY SOILS
VEGETATIVE
COVER
CLAY SOILS
COVER
EZflow BUNDLE
EZflow
BUNDLE
WITH
PIPE
WITH PIPE
6
EZflow
EZflow
AGGREGATE
AGGREGATE
ONLY BUNDLE
ONLY BUNDLE
EZflow BUNDLE
EZflow
BUNDLE
WITH
PIPE
WITH PIPE
HEAVY CLAY SOIL
HEAVY CLAY SOIL
Condition
Depth (in.)
Residential area, commercial lawn mowers
6**
Athletic fields with consistent activity
8
Areas with occasional light vehicular traffic
12
* It is recommended that EZflow drainage systems be installed
a minimum of 6 inches below existing or planned subsurface
irrigation lines.
** In low-permeability clay soils, trenches can be placed with
a minimum 4 inches of permeable backfill.
Page 6
French Drain
APPLICATIONS
Installation Instructions
EZfl0w
®
The steps below offer typical installation practices for French drains and will vary based on site conditions. These practices are also
applicable to landscape plant bed drains and for wet areas on golf courses.
1.
Identify theDrain
area to beInstallation
drained and mark Instructions
off lateral and collector lines before digging beginning trench
French
excavation.
The steps below offer typical installation practices for French drains and will vary based on site conditions. These practices are also
applicable
to landscape
plant bed
drains
and for
wet or
areas
on connections
golf courses.to downstream piping will be
2.
Start excavating
the trench
at the
discharge
point
where
made. Trench width should be equal to the diameter of the bundle being used. Trench depth will reflect
1. Identify
the area
to be drainage
drained and
offand
lateral
and height
collector
before and
digging
beginning
existing
terrain,
desired
linemark
slope
length,
of lines
bundles(s)
required
covertrench
thickexcavation.
ness.
Ensure proper slopes by using a transit or builder’s level and grade the trench bottom evenly for
proper flow.
2. Start excavating the trench at the discharge point or where connections to downstream piping will be
made. Trench width should be equal to the diameter of the bundle being used. Trench depth will reflect
existing terrain, desired drainage line slope and length, height of bundles(s) and required cover thickness. Ensure proper slopes by using a transit or builder’s level and grade the trench bottom evenly for
proper flow.
3. Place the EZflow drainage bundle with pipe end to end along the edge of the trench. Use an end cap
at the system high point and fully insert the proper couplings at all bundle-to-bundle connections. Lay
the connected bundles with pipe in trench, stacking aggregate-only bundles above these bundles as
needed.
3.
EZflow drainage
bundle
with pipe
end to
end
along the edge
of theoftrench.
an end
cap
4. Place the
a minimum
of 4-inches
permeable
backfill
(see
recommended
depths
cover Use
on page
6) over
at the
system
high point
and fullyAdditional
insert thesand/backfill
proper couplings
atplaced
all bundle-to-bundle
connections.
Lay
the
bundles
without
compaction.
can be
and compacted
normally above
connected
bundlestrench
with pipe
in trench,
stacking
bundles
above
these installation.
bundles as
the loose
fill to prevent
saddling.
Cover
trench aggregate-only
with sod or topsoil
and seed
to finish
needed.
4. Place a minimum of 4-inches permeable backfill (see recommended depths of cover on page 6) over
the bundles without compaction. Additional sand/backfill can be placed and compacted normally above
the loose fill to prevent trench saddling. Cover trench with sod or topsoil and seed to finish installation.
7
Page 7
Page 7
APPLICATIONS
Interceptor Drains
An interceptor drain is a type of French drain that collects surface water moving downhill and/or groundwater moving horizontally in the
soil above an impervious or low-permeability layer. These drains prevent runoff and seepage from slopes onto areas below.
PLACEMENT
Interceptor drains should run along a contour above the area which is intended to be kept free from seepage and runoff. Interceptor
drain trenches should penetrate one-half of an EZflow bundle diameter into the impervious layer below the water table, extend the length
of the existing seepage line and run to daylight at a code-compliant outfall.
PRODUCT
The 10-inch EZflow drainage bundles with integrated 4-inch pipe are appropriate for most interceptor drain situations. In conditions of
excessive surface runoff or groundwater, or if there is over 200 feet of drain line, the 15-inch bundles with 6-inch pipe are recommended.
COARSE SAND OR PERVIOUS
MATERIAL BACKFILL, 6 IN. MIN.
BERM DOWNHILL SIDE OF
TRENCH IN AREAS OF
HIGH SURFACE RUNOFF
IMPERMEABLE
LINER IF NECESSARY
SEEPAGE
(WEEP) LINE
SURFACE
RUNOFF
GROUNDWATER
MOVEMENT
THROUGH
PERVIOUS
SOILS
AGGREGATE-ONLY BUNDLES,
STACK AS NEEDED
(TRENCH DEPTH VARIES)
WET AREA
IMPERVIOUS LAYER
CLAY, HARDPAN,
ROCK, ETC.
EZ flow BUNDLE WITH PIPE
- PIPE CENTER AT OR BELOW
RESTRICTIVE LAYER ELEVATION
INSTALLATION INSTRUCTIONS
The steps below offer typical installation practices for interceptor drains and will vary based on site conditions.
1. Identify and mark off a hillside contour parallel with the slope to intercept surface water runoff. Lay the system out to allow for at least
two feet in elevation above the impervious layer causing a downgradient groundwater seep.
2. Start excavating the trench at the discharge point or where connections to downstream piping will be made. The trench width should
be equal to the diameter of the bundle being used. The trench depth should be deep enough to excavate one-half of a bundle diameter
into the impervious layer. It may be desirable to create a small soil berm on the downhill side of the trench in areas of high surface flow
to encourage runoff infiltration into the drain. Ensure proper slopes by using a transit or builder’s level and grade the trench bottom to
promote the flow of collected water.
3. Place the EZflow drainage bundles with pipe end to end along the edge of the trench. Fully insert the proper couplings at all system
connections. An impervious liner may also be installed the full depth on the downhill side of the trench to further control seepage below.
Lay the connected bundles with pipe in the trench, stacking aggregate-only bundles above the pipe-containing bundles as needed.
4. Place a minimum of 6 inches of permeable backfill over the bundles without compaction. Additional sand/backfill can be placed and
compacted normally above the loose fill to prevent trench saddling. Cover trench with sod, sand or topsoil and seed to finish installation.
8
Page 8
EZfl0w
APPLICATIONS
®
Curtain Drains
A curtain drain is a type of French drain that collects and diverts groundwater and surface runoff away from an area of concern, such as
a septic system drainfield. For a drain field, curtain drains are useful in controlling groundwater conditions that may compromise system
function. EZflow curtain drain systems can help preserve the proper functioning of septic system drainfields.
PLACEMENT
Curtain drain configuration, discharge, installation depth and horizontal setback from septic system drainfields vary based upon local
conditions. Curtain drains can be placed deeply to collect and divert groundwater, shallower for controlling surface runoff, or in both
configurations as needed. An observation port may be installed to monitor curtain drain function. An impervious liner may also be installed
on the curtain drain trench sidewall as needed.
PRODUCT
Product selection will vary depending on applicable codes and the amount of water to be collected and diverted. The 10-inch EZflow
drainage bundles with integrated 4-inch pipe are suitable for most curtain drain applications. For longer systems over 200 feet in length
the 15-inch bundles with 6-inch pipe are recommended.
SURFACE
SURFACE WATER
RUNOFFWATER
DRAIN RUNOFF DRAIN
GROUNDWATER DRAIN
GROUNDWATER DRAIN
VEGETATIVE COVER
VEGETATIVE COVER
ESTABLISH VEGETATIVE
ESTABLISH VEGETATIVE
COVER (TYPICAL)
COVER (TYPICAL)
SHALLOW BERMSHALLOW BERM
SURFACE
RUNOFF
SURFACE
RUNOFF
MINIMUM 6 INCHES
MINIMUM 6 INCHES
PERMEABLE BACKFILL
PERMEABLE BACKFILL
AGGREGATE-ONLY
AGGREGATE-ONLY
BUNDLES, STACKBUNDLES, STACK
AS NEEDED
AS NEEDED
DISTANCE TO DISTANCE TO
AREA OF CONCERN
AREA OF CONCERN
WILL VARY
WILL VARY
EZflow BUNDLE EZflow BUNDLE
WITH PIPE
WITH PIPE
NATIVE SOIL
GROUNDWATER GROUNDWATER
MOVEMENT
MOVEMENT
NATIVE SOIL
EZflow BUNDLE
EZflow BUNDLE
WITH PIPE
WITH PIPE
(DEPTH VARIES) (DEPTH VARIES)
CROWN TRENC
CROWN TRENCH TO
PREVENT SADD
PREVENT SADDLING
IMPERMEABLE
IMPERMEABLE
LINER AS NEEDEDLINER AS NEED
DISTANCE TO
DISTANCE TO
AREA OF CONCERN
AREA OF CONCERN
WILL VARY
WILL VARY
NATIVE SOIL
NATIVE SOIL
The steps below offer typical installation practices for curtain drains and will vary based on site conditions.
1. Identify and mark off the curtain drain outline before excavation, noting the location of the area of concern, such as the septic system
drainfield.
2. Start excavating the trench at the discharge point or where connections to downstream piping will be made. The trench width should
be approximately equal to the diameter of the bundle being used. It may be desirable to create a small soil berm on the downhill side of
the trench in areas of high surface flow to encourage runoff infiltration into the drain. Ensure proper slopes by using a transit or builder’s
level and grade the trench bottom evenly to promote the flow of collected water.
3. Place the EZflow drainage pipe-containing bundles end to end along the edge of the trench. Fully insert the proper couplings at all
system connections. An impervious liner may also be installed the full depth of the trench sidewall as needed. Lay the connected bundles
with pipe in the trench, stacking aggregate-only bundles above the pipe-containing bundles as needed.
4. Place a minimum of 6 inches of permeable backfill over the bundles without compaction. Additional backfill can be placed and compacted normally above the loose fill to prevent trench saddling. Cover the trench with sod or topsoil and seed to finish the installation.
9
Page 9
APPLICATIONS
Landscape Drains
LANDSCAPE PLANTER
Landscape drains are used to prevent excess soil saturation in planting beds and structural planters that would otherwise compromise
the health of landscape and ornamental plantings. PLANTING
SOIL MIX
PLACEMENT
For landscape plant beds, EZflow drainage bundles can be placed along the bed edge at the interface with other landscape elements
such as the lawn or a walkway, or may follow an irregular alignment to target problem areas and/or respond to plant placement within
PLANTER WALL
the bed. For raised masonry or wood planters,(MASONRY,
EZflow drainage bundles 18"
are- typically
placed on the inside edge of the planter a minimum
24" (TYPICAL)
of 18 inches below finished grade, and up toWOOD,
24 inches
ETC.) below grade for trees and other deep-rooted upland landscape plants. Bundles
should extend to within the bed in larger planters as needed. EZflow drainage bundles must drain to a weep hole or other outlet through
the planter wall to be effective. Tree plantings in poorly drained soils should utilize EZflow drainage bundles to form a ring offset a minimum
of twice the width of the root ball from the trunk. Trenches should be dug 18 to7-INCH
24 inches
for plant beds and below the depth of the
EZ flowdeep
DRAINAGE
LANDSCAPE PLANTER
BUNDLE area
WITH to
3-INCH
PIPE
rootball in tree planting
applications. The bundles must drain away from the planted
a downgradient
discharge point.
- DRAIN TO DISCHARGE POINT
PRODUCT
PLANTING
SOIL MIX
The 7-inch EZflow bundles with integrated 3-inch pipe are appropriate for small raised planter, plant bed and tree planting drainage
systems. The 10-inch
bundles with a 4-inch pipe can be used in larger planting areas and in areas receiving runoff from other sources.
PLANTER WALL
18" - 24" (TYPICAL)
(MASONRY,
WOOD, ETC.)
TREE PLANTING IN
POORLY DRAINED SOILS
7-INCH EZ flow DRAINAGE
BUNDLE WITH 3-INCH PIPE
- DRAIN TO DISCHARGE POINT
LANDSCAPE PLANTER
TREE TRUNK
MINIMUM
2 X ROOT
BALL WIDTH
PLANTING
SOIL MIX
TREE PLANTING IN
POORLY DRAINED SOILS
PLANTER WALL
(MASONRY,
WOOD, ETC.)
TREE TRUNK
BACKFILL WITH NATIVE SOIL
AMENDED FOR DRAINAGE,
AERATION AND GROWTH
MINIMUM
2 X ROOT
BALL WIDTH
18" - 24" (TYPICAL)
AMENDED FOR DRAINAGE,
AERATION AND GROWTH
ROOT
BALL
BUNDLE WITH 3-INCH PIPE,
INVERT BELOW ROOT BALL
AND DRAIN TO DISCHARGE POINT
IMPERVIOUS
BUNDLE WITH
3-INCHSOIL:
PIPE
HARDPAN, ETC.
- DRAIN TOCLAY,
DISCHARGE
POINT
ROOT
BALL
AND DRAIN TO DISCHARGE POINT
IMPERVIOUS SOIL:
CLAY, HARDPAN, ETC.
The steps below offer typical installation practices for landscape drains and will vary based on site conditions.
PLANT BEDS
TREE PLANTING IN
DRAINED
SOILS 7 for
Follow the general French drain installation POORLY
instructions
on Page
EZflow
drainage installation in plant beds.
TREE
TRUNK
MINIMUM
2 X ROOT
BALL WIDTH
outlet
through
RAISED PLANTER
1. Connect the EZflow drainage bundle to a planter weephole or other
the planter wall. Arrange the EZflow bundle length
along the inside perimeter of the planter wall a minimum of 18 inches below finish grade for most plantings, deeper for trees and other
deep-rooted species. Additional bundles may be connected in large planters.
ROOT
2. Backfill using an appropriate plantingAMENDED
soil overFOR
theDRAINAGE,
bundles, add plants and mulch
per the planting plan. No sand cover is required as
BALL
AERATION AND GROWTH
planting soil mix is designed to drain well
while preserving adequate soil moisture.
TREE PLANTING IN POORLY DRAINED SOILS
1. Mark off the desired tree planting location
and TO
excavate
a planting
AND DRAIN
DISCHARGE
POINT hole twice the width of the rootball and to a depth equal to the
height of the rootball.
IMPERVIOUS SOIL:
CLAY,
HARDPAN,
ETC.
2. Dig a 4-inch-deep, 7-inch-wide trench along the
interior
circumference
of the hole and place a 7-inch EZflow drainage bundle with
pipe in the trench. The bundle must slope towards and be connected to additional piping that runs away from the planting hole to the
discharge point.
3. Place the tree rootball in the center of the planting hole and backfill per the planting plan.
10
Contact
Page 10
EZfl0w
APPLICATIONS
®
Golf Course Drains
EZflow drainage systems are ideal for draining wet areas around the course and for installation of drainage systems on fairway and
greenside bunkers.
PLACEMENT
Golf course drainage will generally follow the same placement recommendations as for French drain systems with special considerations
for sand trap bunkers. Sand trap drainage trenches should be dug so that the top of the EZflow drainage bundle rests 1 to 2 inches
below the bunker bottom to allow for maximum sand cover. Cleanout ports are recommended for bunker drainage systems at an accessible end of the main drain line.
PRODUCT
The 10-inch bundles with integrated 4-inch pipe are suitable for most sand trap bunker applications. For main drain lines in large bunkers
consider an additional outlet or using the 15-inch bundles with integrated 6-inch drain pipe. Follow the French drains product guidelines
for general wet area drainage.
PUTTING GREEN
SAND TRAP BUNKER
PUTTING SURFACE
ROOT ZONE MEDIA
4" TO 6" SAND
BUNKER
BOTTOM
COARSE SAND
PEA GRAVEL
EZ flow
BUNDLE
WITH PIPE
EZ flow
BUNDLE
WITH PIPE
12"
1" - 2" MAX.
12"
The steps below offer typical installation practices for golf course drains and will vary based on site conditions.
WET AREAS
Follow the general french drain installation instructions on Page 7 for EZflow drainage installation in wet areas around the golf course.
SAND TRAP BUNKER
1. Identify the slowest drainage areas of the sand trap and determine the pattern for the drain line: irregular, herring bone or gridiron
(see french
drains
drainage
patterns
on page 6)
(see
french
drains
drainage
patterns).
2. Remove the sand from the areas of the bunker along the proposed trenches. Start digging the trench at the discharge point or where
connections to downstream piping will be made to receive the 10-inch EZflow drainage bundles with pipe. Trench width should be a
minimum of 12 inches to allow for an inch of sand on either side, with a maximum depth of 11 to 12 inches.
3. Place the EZflow bundles with pipe end to end along the edge of the trench. Use an end cap at the system high point and fully insert
the proper couplings at all bundle-to-bundle connections. Lay the connected bundles with pipe in the trench and cover with the removed
sand. Sand can be “walked” into the trench to ensure proper fill.
PUTTING GREENS
Please
at 1-800-992-9949
x1404 for design
consultation
when considering
using EZflow
EZ
flow EZflow
drainage
systemssystems
in puttingin putting
Please contact
contactNDS
Infiltrator
Systems at 800.221.4436
for design
consultation
when considering
using
drainage
green
green applications.
applications.
11
Page 11
APPLICATIONS
Foundation and Footing Perimeter Drains
Foundation and footing perimeter drainage systems prevent moisture from entering a building basement or crawlspace through
interception and removal. Aggregate-only EZflow drainage bundles stacked along the foundation wall face within 18 inches of exterior
finished grade will intercept groundwater effectively and drain to a bundle with pipe below.
PLACEMENT
Ideal placement for the EZflow drainage bundle with pipe in a foundation drain is at the footing toe along the entire building foundation
perimeter, or at a minimum, below the finished grade elevation of the interior basement or crawlspace. The drain should have a continuous
slope and outlet that runs to the drainage point. The system outlet should slope greater than the footing perimeter drain and have a diameter equal to or preferably greater than that of the drain pipe.
Note: It is important that roof runoff not drain directly into foundation and footing drains, although it is acceptable to connect these systems
in a manner that prevents roof runoff from entering the foundation and footing drain system and allows them to discharge together.
PRODUCT
The EZflow 10-inch drainage bundles with integrated 4-inch pipe are suitable for most foundation conditions. If there is over 200 feet of
footing or high groundwater conditions, consider an additional outlet or using the 15-inch bundles with integrated 6-inch drain pipe.
FINISHED GRADE
FINISHED GRADE
EXTERIOR
EXTERIOR
FOUNDATION
FOUNDATION
WALL WALL
ALTERNATE
ALTERNATE
CONFIGURATION
CONFIGURATION
INTERIOR
AGGREGATE-ONLY BUNDLES TO WITHIN
AGGREGATE-ONLY BUNDLES
TO WITHIN
18 IN. OF FINISHED
GRADE (TYPICAL)
18 IN. OF FINISHED GRADE (TYPICAL)
LOCATE EZflow BUNDLE WITH PIPE AT
OR,PIPE
AT A MINIMUM,
BELOW
LOCATE EZflowFOOTING
BUNDLETOE
WITH
AT
ELEVATION OF INTERIOR FINISHED GRADE
FOOTING TOE OR, AT A MINIMUM, BELOW
OF BASEMENT/ CRAWLSPACE AND SLOPE
ELEVATION OF INTERIOR FINISHED GRADE
TO DISCHARGE PONT
OF BASEMENT/ CRAWLSPACE AND SLOPE
TO DISCHARGE PONT
INTERIOR
(SEE BASEMENT/
(SEE BASEMENT/
CRAWL SPACE
CRAWL SPACE
DRAIN DETAIL)
DRAIN DETAIL)
FINISHED GRADE
FINISHEDINTERIOR
GRADE
INTERIOR
FOOTING
FOOTING
The steps below offer typical installation practices for perimeter drains and will vary based on site conditions.
1. Starting at the discharge point or where connections to downstream piping will be made,
place the EZflow drainage bundles with pipe next to the foundation footing, or at a minimum
below the basement or crawlspace finished floor elevation, but at a maximum of 12 feet. The
bundles must run along the entire footing perimeter and be placed upon a prepared subgrade
base sloped evenly to drain. Use an end cap at any high point and fully insert proper couplings
at all system connections.
2. Place aggregate-only bundles above and touching the pipe-containing bundle, ensuring hydraulic connectivity over the footing. Place additional aggregate-only bundles up the foundation
wall to the desired height, generally within 18 inches of finished grade. Bundles can be held in
place with stakes as needed prior to backfilling. Avoid tearing the mesh fabric when staking.
3. Backfill the foundation excavation according to the site plans. Make sure that no large stones
or debris are in contact with the EZflow drainage system.
12
Contact
Page 12
APPLICATIONS
EZfl0w
®
Retaining Walls
Retaining walls work to hold back earth in the landscape. Hydrostatic pressure from groundwater can cause even low retaining walls to
fail, so drainage is critical to wall longevity. Also, groundwater weeping through dry-stacked masonry or timber pile retaining walls can
cause unsightly staining and streaking. Similar to their function in foundation and footing drains, EZflow drainage systems intercept and
convey groundwater from behind a retaining wall, relieving hydrostatic pressure and preventing weeps.
PLACEMENT
Depending on retaining wall design and groundwater conditions, EZflow drainage bundles can be placed at the base of the wall footing
or stacked on the backside of the wall.
PRODUCT
EZflow drainage bundle selection for most gravity and piling retaining wall applications should correspond to the diameter of pipe and
arrangement of drainage aggregate specified on approved plans.
The steps below offer typical installation practices for retaining wall drains and will vary based on site conditions.
Note: It is not recommended that an installation contractor substitute EZflow drainage systems for stone where the stone is being utilized
for wall support such as in backfill of cantilever, anchor and mechanically-stabilized-earth retaining wall systems. It is not recommended
that EZflow drainage bundles be used in walls having greater than 5-feet of exposed wall face. A qualified design engineer can utilize
EZflow drainage bundles in these walls with proper design protocol that considers the lightweight nature of these products.
1. Starting at the discharge point or where connections to downstream piping will be made,
place the EZflow bundles with pipe next to the retaining wall footing in gravity walls, or at a minimum below the finished grade elevation in front of the wall. In piling walls, place the bottom
bundle behind the wall at an elevation equal to the finished grade elevation in front of the wall.
Use an end cap at any system high point and fully insert the proper couplings at all system
connections.
2. Place aggregate-only bundles above and touching the bottom pipe-containing bundle,
ensuring hydraulic connectivity over the footing and up the foundation wall to the desired height,
generally within 18 inches of finished grade. Bundles can be held in place with stakes as
needed prior to backfilling. Avoid tearing the mesh fabric with stakes.
3. Backfill the retaining wall excavation according to the site plans. Make sure that no large
stones or debris are in contact with EZflow drainage system.
13
Page 13
APPLICATIONS
Roof Runoff Drains
Roof runoff drains divert rainwater collected in a gutter system away from the building foundation. Systems can be designed to allow for
maximum groundwater recharge and to discharge peak flows into the landscape.
PLACEMENT
Roof runoff systems should not drain toward building foundations or retaining walls so as not to increase hydrostatic pressure on these
elements or overload their relative drainage systems.
Gutter drain systems
systems should
should utilize
utilizeEZflow
EZflow
startingaaminimum
minimum44ft.
ft. from
from and
and aligned
alignedaway
awayfrom
fromthe
thebuilding
buildingfoundation.
foundation.
EZ
flow drainage
drainage bundles
bundles starting
Catch
basins
combined
withwith
solid
(unperforated)
receivedirect
directgutter
gutterflow
flow
and
convey
to the
NDS catch
basins
combined
solid
(unperforated)pipe
pipesystems
systemsand
and bends
bends can receive
and
convey
it toit the
EZEZflow
EZflow
drainage
bundles.Gutter
Gutterdrain
drainsystems
systemsshould
should
then
discharge
a pop-up
emitter,
surface
swale,
core-drilled
or other
discharge
drainage bundles.
then
discharge
to atopop-up
emitter,
surface
swale,
core-drilled
curb curb
or other
discharge
point. Stacking aggregate-only
aggregate-onlybundles
bundlestotothe
theseasonal
seasonalhigh
highgroundwater
groundwaterlevel
level
the
soil
below
the
main
receiving
bundles
maximize
in in
the
soil
below
the
main
receiving
bundles
willwill
maximize
groundwater
rechargeand
andlimit
limitpeak
peakoutflows.
outflows.
groundwater recharge
PRODUCT
In general, EZflow drainage bundles should be selected with a pipe diameter equal to or greater than the size of the downspout. If two
or more downspouts are connected to drain into one EZflow drainage bundle, the 15-inch bundle with 6-inch pipe should be utilized.
ROOF
GUTTER
DOWNSPOUT
CATCH BASIN
(RECOMMENDED)
EZflow DRAINAGE BUNDLES WITH PIPE
SLOPE AT 1% MIN. AND PROVIDE COVER
PER CHART
EXAMPLE
CONFIGURATIONS
ARRANGE AGGREGATE-ONLY BUNDLES
BELOW MAIN BUNDLE TO THE SEASONAL
HIGH GROUNDWATER LEVEL FOR MAXIMUM
GROUNDWATER RECHARGE - BUNDLE
CONFIGURATIONS MAY VARY
DRAIN TO SURFACE SWALE, POPUP EMITTER, CORE-DRILLED CURB
OR OTHER APPROVED OUTFALL
4 FT. MIN.
SEASONAL HIGH GROUNDWATER LEVEL
MINIMUM SOIL COVER IN VERTICAL STACK
ROOF RUNOFF APPLICATIONS
No. of 10” Bundles
Minimum Soil Cover
1 or 2
6”
3
8”
4
10”
5
12”
The steps below offer typical installation practices for roof runoff drains and will vary based on site conditions. Refer to page 5 for minimum
cover and maximum bundle chart to prevent flotation for a filled drainage area.
1. Identify downspout locations for connection to the proposed roof runoff system. Mark off areas for connection piping and for the EZflow
drainage bundles, considering system discharge limitations.
2. Excavate locations for catch basins, pipe runs and bundles. The trench for the EZflow drainage bundles should match the bundle
width and can be excavated to the seasonal high groundwater level for maximum groundwater recharge.
3. Install aggregate-only EZflow drainage bundles along the bottom of the deep trench as needed for maximum groundwater recharge,
and the pipe-containing bundle with pipe at the appropriate depth to ensure a minimum 4 inches of soil cover above the system.
4. Install an NDS or equivalent catch basin to directly receive downspout discharge and run a minimum 4-foot length of solid (unperforated) pipe away from the building foundation before connecting to the EZflow drainage pipe. More than one downspout can be
connected prior to entering the system with properly-sloped solid piping and connections. Catch basins are recommended for ease of
maintenance. Clean-outs must be installed if direct downspout to drainage system connections are made.
5. Following the EZflow drainage bundle assembly, install a solid pipe run to a pop-up emitter, surface swale, core-drilled curb or other
drainage point. Fully insert the proper couplings at all system connections.
6. Cover the trench and other exposed excavation areas with sod or topsoil and seed to finish the installation.
14
Contact
Page 14
EZfl0w
APPLICATIONS
®
Basement/Crawlspace Dewatering
In many cases older homes were constructed without foundation and footing perimeter drains. A basement area or crawlspace can become inundated when groundwater levels rise with seasonal cycles or following heavy rains. Retrofitting a footing drain on an existing
home can be impractical considering paved areas, steps, decks and patios, site access, utility connections and mature landscaping. A
better solution may be to install an interior basement or crawlspace drain system that conveys collected water to a discharge point or
sump for removal from basement or crawlspace by pump.
PLACEMENT
For EZflow drainage basement and crawlspace dewatering systems it is recommended that a 10- to 12-inch-wide trench be excavated
along the interior foundation wall a minimum of 9 inches deep below the floor surface elevation for a soil floor or 9 inches below the
bottom of floor slab elevation for a concrete floor. The trench must slope towards and discharge into an excavated sump. Installation
should be avoided during flooded conditions or when no other outlet exists.
PRODUCT
7-inch EZflow drainage bundles with 3-inch pipe are installed along the bottom of the trench with appropriate fittings at trench bends. A
minimum 2-inch layer of permeable backfill is placed above the bundle to support poured concrete in slab repair situations or brought
to finished grade where the concrete slab exists.
OPTIONAL REPAIRED SLAB
TO MATCH EXISTING OR COARSE
SAND/PEA STONE TO INTERIOR
FINISHED GRADE
COARSE SAND
OR PEA STONE
(2 INCHES, MIN.)
FOUNDATION WALL
EXISTING INTERIOR
CONCRETE SLAB
(IF PRESENT)
FOOTING
MOISTURE BARRIER
EZ flow 7-INCH BUNDLE WITH 3-INCH PIPE,
DRAIN TO EXCAVATED SUMP AND PUMP
TO APPROVED EXTERIOR OUTFALL
UNDISTURBED SUBGRADE
The steps below offer typical installation practices for basement/crawlspace dewatering drains and will vary based on site conditions.
1. Excavate a trench along the inside perimeter of the foundation wall being careful to not damage or interfere with existing utilities. The
trench should be a minimum of 9 inches deep and should be sloped evenly towards an excavated sump or discharge point.
2. Connect the 7-inch EZflow bundle with 3-inch pipe to the excavated sump outfall and connect additional bundles to run the entire
length of the trench. Use an end cap at any system high point and fully insert the proper couplings at all system connections.
3. Place a minimum 2-inch layer of clean, coarse sand or washed pea gravel above the bundle to support poured concrete in slab repair
situations, or place the sand/gravel to finished grade where no concrete slab exists.
15
Page 15
NDS EZFLOW™ WARRANTY
STANDARD LIMITED WARRANTY
(a) The structural integrity of each EZFlow expanded polystyrene drainage system manufactured by EZFlow
LP and distributed by National Diversified Sales, Inc. (“NDS”), when installed and operated in a drainage
system in accordance with its instructions, is warranted to the original purchaser (“Holder”) against defective
materials and workmanship for one year from the date installation of the drainage system commences. To
exercise its warranty rights, Holder must notify NDS in writing at its Corporate Headquarters, 21820 Burbank Blvd., Suite 200, Woodland Hills, CA 91367 within fifteen (15) days of the alleged defect. EZFlow LP
will supply replacement Units for Units determined by EZFlow LP to be covered by this Limited Warranty.
The liability of EZFlow LP and NDS specifically excludes the cost of removal and/or installation of the Units.
(b) THE LIMITED WARRANTY AND REMEDIES IN SUBPARAGRAPH (a) ARE EXCLUSIVE. THERE ARE NO
OTHER WARRANTIES WITH RESPECT TO THE UNITS, INCLUDING NO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
(c) The Limited Warranty does not extend to incidental, consequential, special or indirect damages.
EZFlow LP and NDS shall not be liable for penalties or liquidated damages, including loss of production and
profits, labor and materials, overhead costs, or other losses or expenses incurred by the Holder or any third
party. Specifically excluded from Limited Warranty coverage are damage to the Units due to ordinary wear
and tear, alteration, accident, misuse, abuse or neglect of the Units; the Units being subjected to vehicle
traffic or other conditions which are not permitted by the installation instructions; failure to maintain the minimum ground covers set forth in the installation instructions; failure of the Units due to improper sitting or improper sizing; or any other event not caused by EZFlow LP or NDS, This Limited Warranty shall be void if the
Holder fails to comply with all of the terms set forth in this Limited Warranty. Further, in no event shall EZFlow
LP or NDS be responsible for any loss or damage to the Holder, the Units, or any third party resulting from
installation or shipment, or from any product liability claims of Holder or any third party.
(d) No representative of EZFlow LP or NDS has the authority to change or extend this Limited Warranty. No
warranty applies to any party other than the original Holder.
10.2010

EZ l w

Transcription

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