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Thread: Replacing my SWG

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    Replacing my SWG

    I just purchased a home with a salt water pool that is 2 years old and 22,00 gallons. It has an Autopilot SWG unit installed that has been giving me trouble, and basis some notes left by the previous owners, gave them trouble too. The flow switch just went out (again - second one in 2 years, and the salt readings and temperature are all over the map).

    Since the cell is 2+ years old, and it is going to cost me about $250.00 for the switch and a service call, by the time I am done, my cost will be about $350.00 on a two year old unreliable unit.

    My question is....does anyone have a view on which unit to install (and who has the best warranty?). My pool company wants to sell me a Hayward Aqua-Rite unit.

    Many Thanks,

    13,500 Gal. inground pool, Aqualink controller, Purex Triton DE filter, Zodiac SWG and Polaris cleaner.

  2. Back To Top    #2
    dmanb2b's Avatar
    Join Date
    Apr 2009

    Re: Replacing my SWG

    Welcome to TFP Before you dump the autopilot...they are actually pretty nice high end units and the cell should be able to last much longer than 2 years.

    1st step would be to get a good test kit and some salt test strips. is popular here and the owner actually owns TFP as well. 2nd Read pool school and ensure your chem levels are in line with the recommended SWG balance parameters
    3rd, check to make sure you are actually getting good flow from your returns, does your filter need to be cleaned? Also, it would hurt taking the cell out and see if that needs a cleaning.

    Post a full set of results as soon as you can and perhaps we can save you a few $'s.

    This is what we'll need to help you out:

    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

  3. Back To Top    #3

    Re: Replacing my SWG

    I had the water tested a few days ago by a pool store. Here are the results:

    FC - Free Chlorine - 3.0
    CC - Combined Chlorine - Don't have
    pH - 7.8
    TA - Total Alkalinity - 110
    CH - Calcium Hardness -260
    CYA - Cyanuric Acid (stabilizer) - 90 ( just added 8 lbs)
    Salt - 2900 ppm

    Copper - 0
    Iron - 0
    Phosphates - 100 (I just added some remover)

    As you mentioned, I took the cell out last week, and cleaned it with 4:1 acid. It had some deposits, but not all that much. Also, I do not believe there is flow restriction or dirty filter. The pressure reading on the filter top is about 22 psi, and has been steady for the last few weeks.

    Do you know why the Tri sensor would go out twice in 2 years? Which replacement unit would you buy?
    13,500 Gal. inground pool, Aqualink controller, Purex Triton DE filter, Zodiac SWG and Polaris cleaner.

  4. Back To Top    #4
    NWMNMom's Avatar
    Join Date
    Apr 2007
    Waaay NW MN

    Re: Replacing my SWG

    I have an Aqua Rite and it works very well so far
    18x33x52 Buttressfree Seaspray (Wilbar) AGP - 1.5hp Pentair Maxim w/22" Pentair Meteor Sand Filter, Aqua Rite SWG System, Biltmore Walk In Steps - 2/4x20 Solar Panel Setup - Doheny Jet Drive (RIP -Pool Rover Jr) - finally hard plumbed the whole darned thing -
    Beats Driving to the Lake!

  5. Back To Top    #5
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Replacing my SWG

    It is very unusual to have that much trouble with the tri-sensor. Flow switches do fail with any brand of SWG, but not normally anywhere near that quickly. Your problem sounds like it could be a lose/bad connection at the power supply/control unit end of the tri-sensor cable.

    Also, the tri-sensor cable should not be tightly coiled anywhere along it's length.
    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

  6. Back To Top    #6

    Join Date
    Apr 2007
    Ft Lauderdale, Florida

    Re: Replacing my SWG

    Flyboy, PM me your address so I can pull up the previous service call reports to see what my service center diagnosed. Sure helps to have both sides of the story, rather than notes written by the previous owner. Were there any service report copies left behind?
    Sean Assam -
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps
    AutoPilot Salt Chlorine Generators

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