Dude, that water heater is not suitable for use as a water storage tank.

Let me tell you the reason: the inner tank of the electric water heater is fully enclosed, and there is a one-way valve at the water inlet. Even if the inner tank is full of water, when the main water supply is stopped because there is no water or air In addition, it is difficult for the water in the water heater to flow out again.

Unless you make modifications: 1. Install a tee at the water inlet (the rear section of the one-way valve) and connect another air intake pipe

2. Install a valve on the air intake pipe.

3. The height of the air inlet pipe should be higher than the water heater

4. After the water is stopped, the main water inlet valve should be closed. (Water meter side)

5. Open the air intake pipe valve again.