Storage Tank Essay

A sand filter (water flowing through fine sand) is sometimes used for filtering rainwater entering a tank. This type of filter is only suitable, however, where the inflow is slow, and will soon overflow if the inflow exceeds the rate at which the water can percolate through the sand.

Settling tanks and partitions can be used to remove silt and other suspended solids from the water. These are effective where used but add significant additional cost if elaborate techniques are used.

2.2.6 Storage tank sitting

Tanks should be located as close to supply and demand points as possible to reduce the distance water is conveyed. Storage tanks should be protected from direct sunlight, if possible. To ease the load on the pump, tanks should be placed

It must be ensured that the top cover is permanent and always fully covered. This will prevent the growth of algae or bacteria in the tank. In no case should it be opened. If there are small cracks in the joints they should be sealed with cement mortar immediately. Mosquitoes and dust should never be allowed in to the stored rainwater tank. The tank should also be completely water tight. If there is any leak in the tank or even dampness, the problem should be addressed immediately with the help of a trained engineer.

2.2.8 Overflow pipe

The storage tank will have an overflow pipe from the top of the tank. In case of heavy rain, the overflow pipe will allow the excess rain water to be safely disposed of without causing any flooding. The size of the overflow pipe should be the same as that of the inlet pipe. It will have a mesh at the bottom to prevent rats, squirrels and cockroach from coming in. The mesh should be checked weekly and if torn or open should be repaired or replaced immediately (see picture 2.3).

It should also be ensured that the overflow water is drained away effectively to a pit, plant or storm water drain and not allowed to cause