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Thread: SWG Systems and Copper Pipes

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    arjaygee's Avatar
    Join Date
    May 2011
    Orange, California

    SWG Systems and Copper Pipes

    I just purchased a Pool Pilot Digital for my very old swimming pool, and since my plumbing is a little complicated, I had decided to contact a professional to do the installation. For the most part, my plumbing is PVC above the surface but all under ground lines coming and going to the pool are copper. When the installer came out to assess the job and provide an estimate, he immediately spotted the copper going into the ground and advised against installing the SWG system. He said that the SWG system would eventually result in pipe erosion, to the point where I would end up with problems under ground. He did qualify that it would most likely take quite a while, it was still estimated on the order of within 10 years. He also pointed out that, in general, I can expect heater problems as well, since my older heater includes copper.

    I've searched and read some similar concerns but am a bit surprised copper plumbing and SWG concerns aren't discussed much here and elsewhere... unless it is and I've carelessly missed it.

    I would love to hear your collective thoughts on this one. I'm not sure if I should cut my losses and return the SWG system, probably incurring a re-stocking fee or conclude that the installers advice was not quite accurate and install it anyway.
    27K Gal. In-ground 20x36 Plaster (Custom Curved Shape)
    1 Hp WisperFlo Pump; Hayward AQR15 AquaRite SWG, Purex Triton 60 Sq Ft DE Filter (FNSP 60); Pentair MasterTemp Heater

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

    Re: SWG Systems and Copper Pipes

    Using copper with a SWG is not a problem at all as long as you never let your PH get too low. Copper and ocean water don't do so well together, but copper and SWG levels of salt are just fine. The only significant risk with copper pipes is accidentally allowing the PH to get too low.
    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

    In the Industry

    Join Date
    Jul 2010
    Ashford, CT

    Re: SWG Systems and Copper Pipes

    Hey Jlyon or others would you recommend using zinc anodes - say in the skimmer baskets and or inline to offset any galvanic action ???
    25k 20x40 Gunite w/ integrated Spa & Caribbean Blue Plaster, Curved Bluestone Coping, Deck Jets
    Pentair Easy Touch/Wireless, Sta-Rite Intellipro SRVS Pump, Intellibrite Lights, & Pentair IC40 Cell, Sta-Rite 450sf Cartridge filter
    Heated from Central Boiler - Outdoor Wood Furnace & Triangle Tube Max Heat Exchanger
    ColorQ Pro

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