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Thread: Bad expansion tank location?

  1. #1
    DIY Junior Member john192719's Avatar
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    Feb 2013
    Location
    PA, USA
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    4

    Default Bad expansion tank location?

    Hi,

    I just recently noticed that the expansion tank in my house is installed like so

    main water shutoff valve - > Pressure Reducing Valve -> expansion tank -> cold water shutoff valve to water heater -> water heater

    but from everything I've read it should be

    main water shutoff valve - > Pressure Reducing Valve -> cold water shutoff valve to water heater -> expansion tank -> water heater

    Just how bad is it that it's not installed the latter? Is this something I should immediately fix?

    Thanks everyone!

  2. #2
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
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    25,671

    Default

    The only time it would be a "problem" would be if the water was shut off to the water heater while it was heating, and even that would NOT be a major situation, and would be "temporary". Don't worry about it.
    Licensed residential and commercial plumber

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