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Thread: oclt just misses

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    oclt just misses

    slam going on for 10 day now, every morning have a 1.5 loss of fc, cc stays at.5 -water is very clear. ph 7.5 ta 170 cya 50 fc 20 and cc .5 think i'v just about scrubbed the liner away. only place I cant get is behind the old fiber light lens in the deep end, not sure how or if I should try to remove it. any ideas, thanks
    19500 gal, IG, haywood s-200 sand filter & pump, 3/4 horse single speed motor, vinyl liner, tf 100 test kit, installed early 80's, Terre haute,In

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    BoDarville's Avatar
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    Re: oclt just misses

    Given that your pool water is otherwise clear, this (behind the light) is where your problem may lie. This area can provide a refuge for algae. If you are not sure how to remove the fixture, it would be worth calling in a professional. If you have a ladder, I would closely inspect it as well.
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
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    DaninFLA's Avatar
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    Re: oclt just misses

    yep, most likely the light niche. take out the light and cleaned it up, I bet you then pass OCLT.
    Dan
    9,000 gallon in-ground Saltwater pool, plaster, cartridge filer, 1.0 hp pump, Hayward T-15 SWCG, TF-100
    Pool School - Chlorine / CYA Chart; Pool School - Test Kits Compared;

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    Re: oclt just misses

    that seemed t get it. passed last nite , thanks for the help
    19500 gal, IG, haywood s-200 sand filter & pump, 3/4 horse single speed motor, vinyl liner, tf 100 test kit, installed early 80's, Terre haute,In

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    Mod Squad tim5055's Avatar
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    Re: oclt just misses

    Great job!!

    To be honest, when I pulled my light the first time I had a huge science experiment going on in there.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    BoDarville's Avatar
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    Re: oclt just misses

    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
    A good test kit is an investment, not an expense.

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    DaninFLA's Avatar
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    Re: oclt just misses

    sorry to revive this...but this seems to keep happening over and over. it happened to me too, just cant finish the SLAM without removing that light and cleaning the niche. should be part of the SLAM process I think from the get-go.
    Dan
    9,000 gallon in-ground Saltwater pool, plaster, cartridge filer, 1.0 hp pump, Hayward T-15 SWCG, TF-100
    Pool School - Chlorine / CYA Chart; Pool School - Test Kits Compared;

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    Re: oclt just misses

    don't think I got it all, so I scrubbed it all again slammed for 2 days, at 9pm last night fc was 26 cc <5 at 6am fc was 25 cc<5 11am fc 20 cc 0 and 6pm fc 14 cc 0 ph 7.5 ta 130 and I thought cya was 50 but triple checking think im more like 40 would that have anything to do with the 12 point fc drop today. water has never looked as good as it does now, thanks all
    19500 gal, IG, haywood s-200 sand filter & pump, 3/4 horse single speed motor, vinyl liner, tf 100 test kit, installed early 80's, Terre haute,In

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    Divin Dave's Avatar
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    Re: oclt just misses

    Nope. If anything, 40 would be more on the good side.

    Algae has a habit of hiding in useen places. If you have a pool light, take it out. Algae loves to hide behind lights. If you have an autofill, check that.
    If you have any pipes that do not continually have water runnign through them, check those.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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