A water tank is a large container that stores water for various purposes, such as supplying water to a building or collecting rainwater for future use. Full definition
The hot water is working but may sometimes take up to 8 minutes to heat up because of the location of the hot water tank in relation to the bedroom. (luxuryretreats.com)
To draw attention to the global water crisis and encourage people to limit how much water they use, an arts group is painting hundreds of water tanks around the city this summer. (treehugger.com)