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Thread: How do you know what 'size' SWG you have?

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    How do you know what 'size' SWG you have?

    How do you know what 'size' SWG you have? If I look up my model will it say what size pools it's designed for? The reason I ask is because I opened my pool this year (first time) and set my SWG to ~40% and had it running for 12 hours every day. This apparently wasn't getting in enough chlorine so I ended up with a small algae problem. I turned up the run time and the % but I was still supplementing my SWG with chlorine tablets just to get my FC up to 3ppm. Then the algae took over so I had to SLAM the pool.

    Point being, I'm running the SWG at 100% right now 24/7 and it doesn't seem like it will keep up with the chlorine demands without tablet or chlorine supplements. So I'm wondering if there is a problem with the SWG (cell needs to be cleaned) or that it just isn't beefy enough to generate the chlorine I need. The salt levels are correct, and it IS generating chlorine, just maybe not as much as it should be. I can't visually inspect the cell without taking things apart, and I haven't had the opportunity to do that yet.
    42,000 gallon gunite pool and Spa (in ground), SWG
    Sta-Rite System 3 Modular Media Filter (300 Sq. Foot cartridge filter)
    Jandy Lite2 Natural Gas Pool and Spa Heater

    Maryland, USA

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    gatorbrit's Avatar
    Join Date
    Aug 2013

    Re: Size of SWG vs size of pool

    The manufacturer's specs for the model # will tell you the output of the SWG.
    18k vinyl IGP, Sand Filter, EasyTouch Control Sys, Pentair Intelliflo, Intellichlor IC 40 SWG, Rheem Heat Pump.

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

    Re: How do you know what 'size' SWG you have?

    Your problem is almost certainly due to an imbalance in your chemical levels of some kind. If you post your current levels and tell us what model of SWG you have we can give you much more specific feedback.
    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

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    aussieta's Avatar
    Join Date
    Jan 2014
    Langwarrin, Victoria, Australia

    Re: How do you know what 'size' SWG you have?

    as salt cells die they do reduce output,
    have you cleaned your cell recently
    the chlorine tablets are possibly the cause of your problem
    get a recommended test kit and check and post all your levels, especially your CYA
    back to your original question there should be a manufacturer id number on cell eg T15
    SWG inground peanut shaped painted concrete pool
    50,000 litres 13,000 gallons
    Lincoln Salt Chlorinator, 25 gram cell Sand Filter
    Taylor K2006-C test kit, Taylor K-1766 salt test
    are you taking care of your pool or is the poolshop taking care of you

  5. Back To Top    #5

    Join Date
    Jul 2011

    Re: How do you know what 'size' SWG you have?

    So you say you opened your pool and you were using the swg to get your FC up from what I assume would be 0. I could be wrong but I thought swg are not meant to raise your chlorine but replenish what you use in a day

    Sent from my iPhone using Tapatalk
    13k IG pebble pool w/waterfall, 1hp whisperflow pump, pentair ccp320 cartridge filter
    Circupool SI45+ swg
    TF100 +speed stir Taylor 1766 salt test

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