Water heater drain clogged

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    • #272445
      Avatar photoMasterPlumbers

        I am faced with replacing my hot water heater. I can’t drain the tank. The drain seems to be clogged. I am thinking that I might be able to siphon out the tank through one of the top connections. Any suggestions? Will this work? If so, would the inlet or outlet be best? If not what else can I do?


        Ken Giffin
        [email protected]

      • #285753
        Avatar photohj

          Remove the drain valve, or drain fitting if it is one that is connected to a straight pipe from the tank, and replace it, temporarily, with a gate valve or ball valve. Then use a screwdriver to dislodge the material in the bottom of the tank, next connect a hose to the that valve and open it while the water pressure is turned on to the tank. once flow starts turn off the water to the tank and lift the lever on the safety valve to let air into the tank. You may have to repeat the process a couple of times before the water will drain properly.

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