Step 4 · Drain the Water Heater Tank

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

Attach a standard garden hose to the drain valve located at the bottom of the water heater tank. Run the other end of the hose to a safe drainage point, such as a floor drain, utility sink, or outside. To prevent a vacuum from forming and to help the tank drain, go to a faucet inside the house (preferably on a higher floor) and open the hot water side. Finally, open the drain valve on the water heater. You may need pliers if the valve is stiff. Allow the tank to drain completely.