Water-saving toilet cistern - has separate tanks for fresh water and used water

摘要

The toilet cistern has a tank for used water, a fresh water tank below it, and a container, standing in the fresh water. All are connected via channels, openings, and float valves, to initiate a dosed flush of used water, followed by a dosed flush of fresh water. The used water tank (1) has a float-regulated outlet opening (8) in the bottom; when there is insufficient used water in the tank, a set min. required water level (20) is maintained by fresh water, coming in via a float valve (7). ADVANTAGE - Uses water from domestic appliances, etc.