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Thread: Is this a reason to SLAM?

  1. Back To Top    #1

    Join Date
    Jun 2012
    Location
    Springtown, TX
    Posts
    54

    Is this a reason to SLAM?

    Hey all,

    I haven't seen any evidence of algae blooms. I've been using more chlorine that usual, but have had more people in the pool too. Yesterday, the pool was 3ppm. Via the pool store, the CYA was 10 on Sunday. I couldn't get it to register on the taylor test. We added enough to bring it to 25, as that's all the CYA we had. Via pool math's calculations 16oz would bring it to 25, but it's now 40ish. I assume this fact that the CYA was higher than I thought it was, caused the problem with FC being too low. I didn't want to retest the CYA until it had been in for 2 days to give it time to come up. However, the minimum for cya of 40 is 3, so why did I have a problem to begin with?

    A few hours ago, I tested FC and the it was 0 with CC at .5 (it's rare I get a 0 reading, it's usually .5). So, I added 1/2 gal and tested again in 2 hours and it was only 2ppm and water is a tiny bit cloudy. I've added the remainder of the gallon and I'll retest in an hour.

    So, I know this is likely the beginning of algae, but without blooms or anything green, do I need to start a SLAM or just maintain the levels I should have for a CYA of 40?

    Thanks.
    AG pool is a 7,500, 200# sand filter, 2 speed pump and Taylor kit,

  2. Back To Top    #2
    Pool Tool's Avatar
    Join Date
    May 2014
    Location
    Western Chicago Area, IL
    Posts
    754

    Re: Is this a reason to SLAM?

    Cloudy = Slam.

    Stages of algae bloom
    1. Using more FC
    2. Pool may feel slippery
    3. Start to see dust/green dust when brushing
    4. Pool looses sparkle, starts to cloud up.
    5. .... Green Monster

    Catch it early and it'll will go much quicker. Good luck.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,085

    Re: Is this a reason to SLAM?

    Time for you to SLAM. Do you have your own test kit?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4
    Texas Splash's Avatar
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    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,981

    Re: Is this a reason to SLAM?

    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
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
    If you enjoyed your TFP experience, please consider donating to Support TFP!

  5. Back To Top    #5

    Join Date
    Jun 2012
    Location
    Springtown, TX
    Posts
    54

    Re: Is this a reason to SLAM?

    Pat, you're awesome! ROFL! Exactly!

    Yes, I have my kit.

    Thanks all!
    AG pool is a 7,500, 200# sand filter, 2 speed pump and Taylor kit,

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