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Thread: converting to a salt water system with a heater/metal parts

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    Join Date
    Feb 2011
    Location
    Dallas Texas
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    57

    converting to a salt water system with a heater/metal parts

    I am considering converting my fresh water pool to a salt water pool...One thing I am concerned about is corrosion of metal parts...I have a heater that heats the water in our jacuzzi as well as the pool.....

    A check valve installed on the inlet line to the heater is supposed to prevent salt from entering the heater..

    If I did not have a heater I would not be concerned but having a heater well what do you think...?????????

    Advice? TIA

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    XsAllOverIt's Avatar
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    Dec 2010
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    Mount Airy, Maryland
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    560

    Re: converting to a salt water system with a heater/metal pa

    The low concentration of salt will not affect your heater. There are MANY that have heaters with SWG's with no issue, including myself. My water goes through the heater full-time.
    18 x 36 Inground Gunnite, White Plaster 21K gallon
    18" raised spa, 8' Diameter (620 gallon)
    Triton II Sand filter, Intellichlor IC40 SWG
    Pentair Pump, Max-E-Therm 400 BTU
    Lamotte ColorQ PRO 7-Plus test kit
    TFT-100 test kit

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    Qwaxalot's Avatar
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    Jun 2012
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    439

    Re: converting to a salt water system with a heater/metal pa

    I'm a little confused, if the pool water runs through the heater it will always have salt in it, and conversely if you have a check valve before the heater nothing would work.

    It's sometimes advisable to have a check valve between the heater and SWCG (which should always be installed after the heater), to prevent heavily chlorinated water from backing into the heater when the pump is off.
    In the industry, CSP (Certified Service Professional) by the NSPI and it's successor the APSP. My company services over 600 pools every year. I think the practices regularly espoused on this forum (especially the BBB method) are outstanding; however my comments will be often oriented towards the goal of getting it done, and getting it done right now!

  4. Back To Top    #4

    Join Date
    Feb 2011
    Location
    Dallas Texas
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    57

    Re: converting to a salt water system with a heater/metal pa

    Sounds like you are right about the location of the check valve...thanks!

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