Construction Techniques for VENTILATED

Construction Techniques
for VENTILATED-IMPROVED PIT LATRINE
LINING PARTS
1.2 m
Quantity
Materials
Bricks
Cement P300
Gravels 1x2
Sand
258 units
26.9 kg
0.15m3
0.17m3
4.7 kg
6.5 kg
Lime
Iron bar Ø6
21 cm
14 cm
1m
16 cm
Step 1: Digging the pit
Step 2: Making the slab
The pit should be at least 10m away from any eating or
The slab can be made of reinforced concrete.
drinking water source, and shouldn’t be dug where the soil is
sinking and prone to floods.
The pit’s top is 10-20cm higher than the surface to prevent
water from entering the pit.
The pit has a trapezoidal form, with the bottom smaller than
the top, and can be reinforced with bamboos or wood plates
to avoid erosion. The top is 1.2m wide, the bottom is 1m wide.
The drop-hole has a 16cm diameter and is placed at least
35cm away from the rear and lateral walls.
There is a ditch for urine to escape to a container placed
outside of the latrine.
The drop-hole comes with a wooden or concrete lid with
handle that well covers the drop-hole when it’s not in use.
Construction Techniques
for VENTILATED-IMPROVED PIT LATRINE
Plastic tube Ø60
L-shaped connector Ø60
T-shaped connector Ø60
Quantity
2.7 m
01 unit
01 unit
40cm
6cm
SUPERSTRUCTURES
Materials
Step 3: Fitting the
ventilation pipe
Step 4: Building the
roof and walls
The ventilation pipe has a diameter of 6cm, and is made from
The latrine’s superstructures can be built using
locally available materials such as: bamboos, reeds,
palms, etc. that ensures privacy and protection from
external climate conditions.
perforated tube, either PVC or bamboo stem.
The pipe’s top is 40cm higher than the latrine’s roof and ends
with a T-shaped connector with anti-fly net.