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    tmeyer01's Avatar
    tmeyer01 Posts: 136, Reputation: 1
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    #1

    May 23, 2008, 05:56 AM
    Knock in water heater
    My water heater started knocking about three weeks ago. It is only about 4 years old but I had never drained or flushed it. Everything I have read says there is sediment build up on the bottom that causes this. I have since drained and flushed the entire unit 3 times but it has not helped at all.

    What should I try next?

    Thanks,

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