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Thread: aqua rite calibration problem

  1. Back To Top    #1

    aqua rite calibration problem

    Just had my salt level checked and it is 3600ppm.
    I have a T-15 cell that is a year old.
    Control board is a year old.
    when I calibrate the unit to the correct salt level reading (3600) it
    keeps dropping over a 24 hour period, until it stops at 2700.
    I cleaned the cell and the flow switch today and started the unit up,
    with the same results.
    Any help would be appreciated.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: aqua rite calibration problem

    Welcome to TFP!

    "Calibration" doesn't do what you think it does. All it does is set the running average level (which is what is displayed) to the instant reading. The running average then goes back to being a running average, which will get it back to what it was before after a while (assuming nothing else has changed).

    Why do you think you need to calibrate the unit? The SWG is typically more accurate than any other kind of test that is easily available (except when the cell is about to fail).

    Also, if the water is cold the salt reading is expected to be lower than actual.
    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
    chiefwej's Avatar
    Join Date
    Jun 2011

    Re: aqua rite calibration problem

    You just add enough salt to make the SWG happy
    Tucson, AZ
    19k gallon Pebble Tec play pool/spa, Pentair Intelliflo VS (3 hp) 011018, Super II 2hp (for spa), Aqua Rite T-15 SWG, Pro Grid 60 DE filter, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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