The barbed fitting (C) connects to 1/2-inch I.D. vinyl tubing. ... and the water heater drain valve. Let the tank drain until sediment clogs the valve and reduces the flow.

Step 7: Close the drain valve, turn off the hot water side of the faucet that was opened earlier and allow the tank to refill. Step 8 Sediment buildup in a hot water tank will affects it efficiency.

You can’t leave any water in the system untreated, or it might freeze, expand and crack or burst whatever is trying to contain it (tank, fitting, pipe, etc.). Drain the tank. A portable pump of some ...