Water storage and distribution with first supply, typically rainwater from roof, and second supply, typically mains water, with tank bolted to wall of building

摘要

Tank 100 is bolted to the side 118 of a building, typically a house by brackets (not shown). It is capable of receiving more preferentially a first supply of water from the roof of the building, and less preferentially, a second supply of water from a supply utility (typically mains supply). Typically, the second supply is only used when the lower level 108 is reached. The arrangement and operation is stated to be able to achieve considerable saving in water supply and disposal.