Draining a Water Heater

July 1, 2014

in Home Maintenance

Lennar home at the Draper Collection in Thompsons Station, TNDraining the water heater in your new Lennar home is a part of homeowner maintenance that should be done at least once a year. Check the manufacturer’s instructions for more information about your particular water heater and the suggested frequency for flushing the system.

The purpose of draining your water heater is to remove limestone and sediment that can collect on the bottom of the tank. Doing this maintenance can increase its life and reduce your utility bills by allowing the water heater to operate at maximum efficiency.

Please remember to be very careful when performing this maintenance, as there is the potential to be scalded by extremely hot water.

Here are the steps to drain your water heater:

  1. Shut off the gas or electricity to the unit, and the water supply to the tank.
  2. Securely attach a drain hose or garden hose to the drain valve at the bottom of the tank and point it where you can safely drain the water, such as a floor drain or directly to the outside of your home. It is extremely important to make sure that no one is near the drain hose as serious injuries, such as scalding, can occur.
  3. Open the pressure relief valve on the tank to break the vacuum so that the water will drain from inside the tank.
  4. Open the drain valve to empty out about half the tank or until the water becomes clear. You will notice some small white limestone sediment particles during the early stages of the flow. Use caution, as the water and the hose will be hot!
  5. When the water flowing out of the hose runs clear, close the drain valve and remove the hose.
  6. Close the pressure relief valve and turn the water supply to the tank back on. You will hear the tank filling back up.
  7. Once the tank is completely refilled you can turn the gas or electricity back on.
  8. Check the drain valve one last time to make sure it is closed tight.

For a demonstration, please see Lennar’s home care video segment on this subject.

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