Patent ID: 8024823

Claim:
A water conservation system comprising: (a) a reservoir for storing water; (b) a toilet water tank for storing water, the toilet water tank is disposed below the reservoir, the volume of the reservoir is smaller than the volume of the storage tank; and (c) a tube fluidly connecting the reservoir and the tank, wherein the tube is configured such that a first end of the tube reaches near a bottom surface of the reservoir, a second end of the tube reaches near a bottom surface of the tank, and an elevated portion of the tube with a crest that is oriented above the first end, the toilet water tank is connected to the reservoir via the tube and is also connected to a water supply, whereby, with the reservoir full of storage water, a siphon is created in the tube when the water level in the toilet tank begins to drop, the storage water is siphoned from the reservoir through the tube and into the toilet water tank, the siphon is broken when the water level in the reservoir is below the first end of the tube.