EnergySavingWaterTap / water tap

This Tap is designed to save the energy that is wasted in the houshold with a simple change of the shape.
This tap has a curved line in the middle of the tap. It is designed so that it turn off on the cold water side only.

When the tap is turned off on the hot water side, the water heating system is trying to maintain the temperature
And you waste your money on gas and electricity bills when you do not need to. However when the tap is closed
on the cold water side every time you use it, no heating occurs.