Why draining water heater

You've read a bunch of articles online, on reputable-looking websites, telling you that you must drain your water heater to flush out the sediment. They don't mention one important caveat, though: It's a very good idea to remove sediment from your tank water heater , but if you haven't done it in years, flushing your water heater may cause problems you never imagined.

This is what can happen to your hot water heater if it's been collecting sediment for years, and you suddenly drain it: the water heater will spring a leak. According to Woodbridge Environmental , a contractor and home inspector, "In some towns where they flush their fire hydrants to keep the pipes clear, it is suggested to follow their lead a few days after, as any sediment that is disturbed ends up on the bottom of your heater.

The sandy particles that collect on the bottom of the tank displace the water ever so slightly. This results in hot spots on the bottom of the tank. If the water appears to have an odd smell or a rust color, then you should start saving for a new water heater, as it may not be long before you find yourself dealing with an obnoxious leak.

When your tank is empty, open your temperature and pressure relief valve, usually located at the top of your tank. Serving All of Clark County. Contact Us. The Status of the Water Supply The difference between draining and flushing your water heater lies in the status of your water supply. Are you a new customer? Quick Links. Local Office. At the top of the water heater you'll see a water pipe and a shutoff valve going into the water heater. Turn this valve to shut off the water to the tank.

It's important to shut off the power to your water heater before draining it, or you could potentially burn out the heating elements. If you have an electric water heater, shut the power off from your home's electrical panel. The correct fuse or circuit breaker should be labeled as being connected to the water heater. Or, The Family Handyman says to shut off the gas supply to the heater. Check your owner's manual and follow the instructions provided for your specific water heater.

The water in your water heater is extremely hot. To help prevent injury, it's a good idea to let your water heater sit overnight so the water within the tank cools down before you drain it. Taking a hot shower can also help speed up the cooling process. Once your water heater has cooled down, place one end of a hose you can use a garden hose into a floor drain or, if it will reach, directly outside.

Attach the other end onto the drain valve at the bottom of the water heater. Open the hot water tap, like a sink faucet, that is nearest to the water heater. This helps to alleviate pressure and allows the tank to drain quicker. If possible, the DIY Network recommends using a tap that is on the floor above the water heater.

Once you open this valve, the water will begin to flow out of the tank. Be patient, as it make take awhile to drain if the tank was full or there is a lot of sediment. Step 7: Turn the water supply back on to flush the tank with fresh, clean water.

With the drain valve still open, turn the cold water back on to help eliminate any remaining sediment on the bottom of the tank. Repeat this step until the water runs clear. Then, turn the water valve off again. Remove the hose from the drain valve, and be sure to close the valve. Turn the water supply back on to start refilling the tank. Once the tank is full, turn the power or gas supply to the water heater back on. Remember to turn off the faucet you turned on earlier while draining the tank.

It's generally a good idea to drain your water heater at least once a year, according to both BobVila. If you live in an area with hard water, though, Angie's List says you may need to drain it more frequently.

Remember, always check your owner's manual to see what the manufacturer recommends.