How Do You Flush A Water Heater?
• Locate and shut off power source (circuit breaker or fuses) for electric water heaters only; also shut off cold water supply to unit. Gas and LP supply valves for non-electric heaters can be left on. • For natural gas and propane (LP) water heaters, make a note of what the temperature setting is and then turn the thermostat (large red dial on the front of the control) to the lowest setting (pilot). If you plan to use the water for other purposes, turn the heat off ahead of time and allow the water to cool (overnight) before draining. Open a faucet closest to the water heater, like the bathroom, or the pressure valve can be opened. • Attach a garden hose to the drain cock located at the bottom of the heater. The drain cock usually looks like a regular hose bib (garden faucet) or a round dial with a threaded hole in the middle. (The drain cock may be hidden under a removable cover.) • Extend the garden hose to a place where the water can safely exit the heater (e.g. a drain, a driveway
