Question 4
(4)(a)List four sources of water supply.
(b)Define the following terms as used in plumbing work:
(i)authority;
(ii)premises;
(iii)consumer;
(iv)communication pipe.
(c)List two precautions to be taken to prevent contamination of well water.
Observation
Candidates had difficulty defining the given terms in 4 (b). The required responses to these questions are as given below:
4(a) - Rain water
- River
- Shallow well
- Deep well
- Bore hole
- Spring
- Lake
- Stream
(b) Authority: The body which undertakes the treatment and distribution of water to a community.
Premises: This is the building receiving water from the water Company or board.
Consumer: The person to whom water is supplied.
Communication Pipe: This is part of service pipe that extends to water authority stop valve.
(c)
- The well must be deep well and not shallow to avoid impurity from subsoil.
- The cover concrete should be at least two feet above the ground to prevent insects, rodent, reptiles from falling inside.
- Well water should be properly collected and stored in a covered tank.
- Deep well should be distant away from septic tank.
- Leaking drain should be replaced as soon as possible to avoid contamination.