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C) Turn"OFF" the water supply to the waterheater at the water shutoffvalve or water meter. U Q b. If you have galvanized pipe to the water G Attach a hose to the water heater drain heater, loosen the two galvanized pipes valve and put the other end in a floor with a pipe wrench at the union in each drain or outdoors. Open the water line. Also disconnect the piping remaining heater drain valve. Open a nearby hot to the water heater. These piecesshould be water faucet which will relieve pressure s