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Thread: Need to SLAM and have a CYA question

  1. Back To Top    #1

    Join Date
    Jun 2012
    Location
    Springtown, TX
    Posts
    54

    Need to SLAM and have a CYA question

    Hi all,

    I'm 2 hours new to all this, so forgive my ignorance.

    We have dark green algae and need to SLAM. I'm ordering the test kit.

    So, currently our CYA level is 10. I noticed on the chlorine/CYA chart that 10 isn't on the chart. So, should I increase the CYA before SLAMing?

  2. Back To Top    #2
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,954

    Re: Need to SLAM and have a CYA question

    Yes, ideally 30 is a good starting point as it doesn't require as much bleach as higher CYAs but will also provide some protection form the sun. 30 is good.

    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.
    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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  3. Back To Top    #3

    Join Date
    Jun 2012
    Location
    Springtown, TX
    Posts
    54

    Re: Need to SLAM and have a CYA question

    Thank you!

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