Crest tanks have a variety of capacities. The smallest being 500 litres and the biggest being 10000 litres making them very suitable for domestic and commercial use. Crest tanks are used to store and reserve water for both domestic and commercial purposes. This makes them essential for any property. Also, with our economy today, where everyone is looking for ways to minimize domestic bills, more people are buying water tanks to harvest rainwater, to use alongside piped water to reduce on the water bills. Water tanks, are made out of many different materials, but the ones available on the Ugandan market, are mostly poly-plastic and steel water tanks.