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Thread: New to this, just tested the water.

  1. Back To Top    #1

    Join Date
    Aug 2016
    Adrian, MI

    New to this, just tested the water.

    Results are as follows:

    FC = 1
    CC = .5
    TC = 1.5
    CH = 500
    TA = 120
    CYA = Could see the black dot the whole time.

    Not sure where to start with getting the CYA where it needs to be, I am in the sticks so draining and refilling is not really an option with spending 1k to get it done. Any other suggestions?

    Thanks in advance!
    22,000 gallon AG.
    Hayward 210 sand filter.
    1 1/2 hp single stage pump.
    30' round, 54" deep.

  2. Back To Top    #2

    TFP Guide
    jeffchap's Avatar
    Join Date
    Jun 2012
    Edmond OK

    Re: New to this, just tested the water.

    You're in good luck, your CYA is low, so you need to add more, not drain your pool.

    Use the Poolmath link at the top of the page to determine how much. Target adding 20 ppm and then test again in a couple of days. We want to get you to 30 without overshooting.

    Once you get there, your FC target will be 4, and never let it drop below 3 or you'll be inviting algae to take hold.

    You can go ahead and safely bump your FC to 4 now. Even if your CYA is only 10, it's safe to swim with FC up to 4.
    25000 gallon free-form gunite
    Jandy Stealth pump/CL340 cartridge filter
    Pentair IC40 SWG
    Pentair MasterTemp 250HD heater
    Jandy AquaLink RS automation

  3. Back To Top    #3
    Mod Squad Texas Splash's Avatar
    Join Date
    Jun 2014
    South-Central Texas, Marion/San Antonio

    Re: New to this, just tested the water.

    Welcome to TFP! Good stuff above.
    To increase CYA via granular stabilizer, place the required amount as calculated by the Poolmath calculator into a white sock and place in the poolside skimmer basket. For those concerned about suction flow to the pump, suspending the sock near a return jet or from a floating device will also suffice. Best never to allow undissolved granules to rest directly against the pool surface. Squeeze the sock periodically to help it dissipate. Once dissolved, consider your CYA adjusted to that programmed (target) level. CYA test readings should show a rise in 24-48 hours, however some pools may experience a longer delay to fully register. Best to confirm final CYA in about 5-7 days before adding any more stabilizer/conditioner.
    Also, your pH is not listed, but ensure that it's about 7.5 or so. Being "out in the sticks" as you are, hopefully you're not on well water or have metals/iron in the source. If you do have metals, let us know and be sure to keep the pH on the lower 7.2-7.4 range.

    Nice to have you with us.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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