Hot Water Heater Maintenance Flush

To flush your hot water tank simply turn on the cold water spigot leading into your hot water tank.

Hot water heater maintenance flush.

Let it run for a few minutes until the water exiting your hose runs clear. A sediment trap or softener can help with hard water to a point. Then turn on a hot water faucet in one of your sinks or tubs to prevent a vacuum from forming in the lines. However the hardness of your water plays a part in this and you may find it better to flush two to three times per year if your home s water is especially poor quality.

Flushing your hot water heater could be necessary as often as every few months depending on the mineral content of your local water supply. Remove the temperature pressure release valve and screw in the vacuum adapter. This may take a bit. While the water might be running clear and isn t brown you may still have some sediment.

Attach the shop vacuum hose and fire up the vacuum. As a general rule your tankless water heater should be flushed once per year to maintain efficiency. Next rotate the water shut off valve on your heater clockwise to turn off the cold water supply. Before you begin a water heater flush.