Step 6 · Refill the Tank and Check for Leaks
This is a critical step to prevent damage to your new element. First, ensure the drain valve at the bottom of the tank is fully closed. Also, remove the garden hose. Go back to the hot water faucet you opened earlier and leave it open. Now, slowly turn the cold water supply valve back on. You will hear water flowing into the tank. Let the tank fill completely. You will know it is full when you have a steady, air-free stream of cold water coming out of the open hot water faucet. Once the tank is full, close the faucet. Carefully inspect the area around the new heating element for any signs of leaks. If you see any drips, you may need to shut off the water, drain the tank again, and slightly tighten the element.