Figure 11.2: V - types of drain sections
- Sewers: the under ground pipes, of any material, used for
collecting and carrying the sewerage to the disposal
points are called sewers. These get discharge from
kitchens, bath rooms, toilets, water closets, urinals and
rain. A sewer should be smooth, strong and durable so as
to withstand the acidic effects of sewerage. The joint
properly laid so as to avoid leakage. These sewers are
circular in section. For detail sections of these sewers see
figure 11.3-4.