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Thread: Can SWG damage heater?

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    Can SWG damage heater?

    Hello everyone,

    I've been lurking here for a month or so and soaking up all of your great information. I am thinking of installing a SWG for this pool season and just wanted to make sure the salt will not damage the internal components of my Pentair Minimax Plus 150M heater? I am thinking of a CompuPool model for my ~9000 gallon in-ground fiberglass pool.


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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Can SWG damage heater?

    As long as you keep the salt level at the recommended level, and don't let it get much higher than 4,000 at any time, the heater will be completely safe.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    Oct 2011
    New Caney, Texas

    Re: Can SWG damage heater?

    Welcome to the forum jphaus!
    18' x 42" Intex (4786 Gal @ 80% capacity) Intex 8110 SWCG, 2000 GPH cartridge filter.
    Full Sun, Well Water, Borates at approx. 50
    TFTestKit-100--The Pool Calculator--Pool School

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