Draw a model pit latrine (plan, sections, and isometric
view) with the following assumed dimensions:
Pit – 2m x 1.5 m x 3m
Casing – 3 m deep, 0.4m thick
Slab – 0.1m thick, has similar dim. With pit
Superstructure – walling: 2.5m x 2m x 2.5m,
Black walling
Roofing-CIS, flat roof
Draw a small-scale septic tank (plan, sections, and
isometric view) based on the following information:
Pit – 3m x 1.5m x 3m,
Floor slab – 0.2 m thickness
Cover slab thickness = 0.15m
Draw a spring (plan, sections, and isometric view) based
on the dimensions given:
Protection box- 1m x 1.5m x 1m, wall thickness = 0.12m
Floor slab thickness = 0.2m
Cover slab thickness = 0.1m
Manhole cover size = 0.6 x 0.6 x 0.6m
Collection box- 2m x 1.5 x 2m, wall thickness = 0.12m
Floor slab thickness = 0.2m
Cover slab thickness = 0.1m
Manhole cover size = 0.6 x 0.6 x 0.6m
