Instructables
video Reduce your bathroom water expend
The most wasteful instrument of water in the house is the toilet. In the US, the toilets can hold up to 15 litters of water and use those 15 litters in each flud. To diecrees the water spent in the toilet, we'll put a bottle in the, filled with water, do it'll sink, and the bottle will catch some of the space inside the toilet's tank.