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Thread: SWG with a big rock waterfall?

  1. Back To Top    #1

    Join Date
    Jul 2016
    Chapel Hill, NC

    Question SWG with a big rock waterfall?

    Ok, I've read a lot of threads and gone to Pool School, checked out and used PoolMath. I've had a lot of trouble over the 10 years of my pool's life. And I'm ready to start fresh with a new approach. Because what I have been doing does not work. I started with an Ecosmarte copper ionization system that couldn't hold off the algae. After 3 frustrating years, transferred to Chlorine pucks (trichlor pucks and dichlor shock) which got better. But every season, like now, I seem to get a cloudy pool and into algae problems in July in North Carolina. Lately I think its mustard algae so I'm SLAMing (as you say). And I've had a CYA problem because of all the stabilized chlorine. I have a big rock waterfall that seems to breed algae and perhaps why the Ecosmarte system failed.

    The current read right before a SLAM: CH 5, PH 7.4, TA 90, CH 225, CYA 100, Phos 1000, Temp 84 deg.

    Anyways, here's my big question: I've read a lot about the SWGs and how attractive they are. I would love one, but I hear from local pool guys, my builder, local pool store, and reading online (not necessarily on TFP) that I might get a lot of calcium on my rock waterfall with a SWG. TFP has some decent threads on this such as this one, but I'm really trying to confirm so I don't waste the investment and time. Can you suggest the issues or risk with a really large rock wall and a SWG in my pool situation?

    New to TFP.

    Thank you.
    Pool: 40,000 Gal, In-Ground, Pebbletec, 75 ft. X 10 ft. Lap Lane, w/ 60ft Infinity Edge Rock Wall, 60ft X 3ft Catch Basin, Pentair Intelliflo Variable 160, Pentair Waterfall Pump AF-180, Pentair Triton II Filter TR-100, Jandy Aqualink RS, Jandy Ultraflex In-Floor, Aquabot, SPA: 700 Gal, Pentair Wisperflow PMP WFE-30, swim laps almost every day Apr - Oct.

  2. Back To Top    #2
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: SWG with a big rock waterfall?

    Welcome to TFP!

    It is pretty easy to avoid getting calcium stains in and around your pool. Enter all your test results into PoolMath and it will calculate your CSI. Keep that number between -0.3 and 0. This will also make your plaster last longer and your SWG last longer.

    More here, Pool School - Calcium Scaling
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  3. Back To Top    #3
    needsajet's Avatar
    Join Date
    Jan 2016
    Sydney, NSW, Australia

    Re: SWG with a big rock waterfall?

    Welcome to TFP! Good to have you here. Thanks for doing your signature and posting in an easily understood way.
    12k IG salt; glass beads in plaster; K-2006C, K-1766, CCL, and Aussie 4in1 (HTH); Pentair Eco800 1.2HP VS; Zodiac SWC 1.3 lb/day (25 g/hr); 25" filter recycled glass; OKU solar panels; 1/2 HP solar pump; Rebel (Warrior) pool cleaner; FlowViz; prior pool AG 10k | Read Before Posting to get the best possible advice | ... and this helped me a lot!: TFPC for Beginners

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