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Thread: First time SLAM

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    Join Date
    May 2016
    Location
    Brandon, MS
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    34

    First time SLAM

    First time slammer here...at least the TFP way.

    I raised chlorine last night to 38 fc to rid pool of mild mustard algae (I must be overestimating gallonage of pool).

    After 2hours, reading was 34. 12 hours later at 27. After 24 hours, fc is 12 and cc is 0.5. I raised back to 24. I have been brushing and have cleaned pool toys with bleach solution. Should this take care of problem? Will the sand filter eventually remove all dead algae, or will vacuuming be necessary? Thanks!
    Greg - Mississippi
    18' x 36'* 23,000 gallons * Vinyl * Manual Chlorination * Pentair Sand Filter * Pentair Variable Speed Pump * Polaris 360 * TF-100 Test Kit

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    Mod Squad pooldv's Avatar
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    Re: First time SLAM

    There are 3 criteria required to end a SLAM. They are listed here, Pool School - SLAM - Shock Level And Maintain
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    Texas Splash's Avatar
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    Jun 2014
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    Re: First time SLAM

    Greg, be careful with the FC. If you go to the Mustard Algae page, you'll see that the treatment for MA is the same as a regular SLAM. You'll maintain the normal SLAM/Shock level until all 3 SLAM criteria have passed, THEN you increase FC to the higher MA level as noted on the Poolmath Calculator, but even then only for 24 hours. I just want you to be careful for your liner. As the bleach slowly kills the algae, yes , the filter will eventually collect the material.
    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.
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  4. Back To Top    #4

    Join Date
    May 2016
    Location
    Brandon, MS
    Posts
    34

    Re: First time SLAM

    Thanks to all! Thanks, Texas Splash...I misread the part about the regular SLAM followed by MA chlorine levels. I never intended to get chlorine higher than 24. I have measured my pool with a tape measure and I'm still calculating 25,000 gallons. Puzzling!
    Greg - Mississippi
    18' x 36'* 23,000 gallons * Vinyl * Manual Chlorination * Pentair Sand Filter * Pentair Variable Speed Pump * Polaris 360 * TF-100 Test Kit

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    Texas Splash's Avatar
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    Jun 2014
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    South-Central Texas, Marion/San Antonio
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    Re: First time SLAM

    The Poolmath calculator is a good tool to help you validate gallon capacity. You might also consider trying chemical adjustments with something else later (i.e. TA) when the opportunity presents itself. When you don't reach your target (or over-shoot it), you know the gallon capacity must be off if everything else is correct.
    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!

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