The keyword of emptying the water heater: generating an air call
The first step to empty your water heater without risk is to cut the electricity at the meter before intervening. Next, locate the drain valve and the cold water inlet valve. Because it is necessary to close the latter to prevent the cylinder filling and emptying at the same time. The principle is to have a garden hose to fix on the water outlet. The other end can be placed in a sink, sink or even a bathtub. Then just open the valve, and the water will flow out quietly. To speed up the process, it is possible to generate a second outlet by opening a hot water tap. A second method consists in completely unscrewing the cold water inlet from the water heater to glue the garden hose to it. It is necessary to turn off the water directly at the meter if this option is chosen. To make an air draw and push the water out of the water heater, simply unscrew the hot water outlet which will flow into the garden hose.