Water Tanks offer a discreet and space saving solution for storing harvested rain water intended for irrigation, watering plants and washing cars and for domestic use. Water tanks can be surface tanks (ferro cement) or underground (water sump).
Underground Water Tanks
An underground water tank (or subsurface tank), is a water storage structure usually made of concrete, burnt bricks, masonry, or other strong materials.
As they are fitted underground, they can also be used to store water from other sources such as springs and wells. Constructed from tough polythen, they are also ideal for many domestic, commercial, and industrial applications including farming and agricultural land scape gardening and the storage of water in case of fire emergency.
Ferro Cement Tanks
Are made of steel mesh and wire, covered on the inside and outside with a thin layer of cement and sand mortar. The tanks can be used for individual households or for whole communities, and they provide a relatively inexpensive and easy-to-maintain storage method. They vary in capacity, size and shape. They are built by hand-troweling layers of cement mortar onto a wire frame which is either free standing or held in space by temporary or permanent structures known as frame.
Advantages over concrete or brick tanks
- They are usually cheaper to build and require less skilled labor.
- They are able to withstand shock better, as ferro cement is more flexible.
Note: Tanks used for storing drinking water must always be covered to avoid contamination and poisoning and so maintain drinking water quality.
Constructed water tanks can be used as rain water harvesting facilities for domestic use and also as water reservoirs for piped water systems from a catchment source. They can be underground constructed water tanks or surface water tanks. Their capacity volumes vary depending on the demand for the water use and the method of construction used from 10,000 liters to about 300,000 liters.