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Thread: Determining time to slam

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    tcat's Avatar
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    Determining time to slam

    My cc is less than .5, close to zero. Cya about 25 (trying to get it up). Pool is greenish, but I think it's tree pollen (solar cover covered with green powdery dust). Is there a way to tell if it's pollen or algae? Since cya is low won't take much to slam, but don't want to if I don't have to. Is the overnight fc drop a better judge of algae than cc? Dang oak trees!

    IG pebble, 15,000 gallon
    48 PentAir DE Filter with backwash valve
    PentAir Whisperflo pump with 1hp 2-speed motor
    Aquabot 4WD, Poolskim
    Intermatic Dual Timeclock with freezeguard
    DIY chlorine feed
    BBB

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    Mod Squad jblizzle's Avatar
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    Re: Determining time to slam

    I would bump the FC up to 10ppm and do the OCLT.
    Jason, TFP Moderator
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    Texas Splash's Avatar
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    Re: Determining time to slam

    With all the junk falling down from oaks and such in our areas this time of year, make sure you have good water surface movement and a skimmer sock in the skimmer to grab "floaties" before they have a chance to get sucked into the filter. Might help a bit.
    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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    Mod Squad kimkats's Avatar
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    Re: Determining time to slam

    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    tcat's Avatar
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    Re: Determining time to slam

    Thanks, 5.0 tonight. I was thinking you needed to test while slamming. Yeah, lots of floating "particles". Pool-skim with a fine 5 gallon paint strainer works well. My 4wd also picks up all the stuff on the bottom. Water is fairly clean, just greenish after brushing. Running filter on low all night. Gets 4 hrs on high during day.

    Edit: 4.5 this morning, no spam! Time to buy more cya. Was under 20 now about 20-25 after my last 3# added a week ago. Is adding pucks cheaper than adding powder? Either isn't cheap. Well, just bought two 4# of Clorox stabilizer at Amazon, cheap, free 2 day shipping.

    Edit2: Water is clear after 2 days of running pump 24/7. Backwash once to get flow back to normal. Must have been green pollen and not algae. The Clorox stabilizer arrived, very nice. Dissolves quickly, nice plastic jug.

    IG pebble, 15,000 gallon
    48 PentAir DE Filter with backwash valve
    PentAir Whisperflo pump with 1hp 2-speed motor
    Aquabot 4WD, Poolskim
    Intermatic Dual Timeclock with freezeguard
    DIY chlorine feed
    BBB

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