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Thread: Water heater sediment

  1. #1
    DIY Junior Member 45SSVaquero's Avatar
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    Dec 2011
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    Omaha, NE
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    Default Water heater sediment

    Picked up a used electric water heater off of a job to temporarily replace my dying gas water heater. Will replace elements and swap anode. Has quite a bit of sediment at the bottom after draining. The tank still looks good. No rust. I believe it is a glass lined tank. wondering how i can fully get rid of the sediment. I am afraid the drain spout is not large enough to allow some of it to pass through when i flush it. I there something i can dump in prior to flushing do dissolve so of it to make it easier to flush? or is a shopvac and hose my best bet? I am new at this water heater thing so any thing will help. Thanks in advance.

  2. #2
    Test, Don't Guess! cacher_chick's Avatar
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    Default

    All the tanks I have worked with have the drain valve threaded in. It's commonly recommended to throw away the factory valve and install a full-port bronze ball valve it it's place to allow full flow out of the drain. When the tank is free of connections, it can be tipped and flushed out using a garden hose pressure nozzle through the ports.

    It's a lot of work for a heater that was pretty cheap to start with.

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