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Thread: Chlorine going up

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    cood60's Avatar
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    Jan 2012
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    Chlorine going up

    Wondering what is making my FC rise

    Has been very stable all summer. The last week or so it has been creeping up about a 1/4 to 1/2 ppm per day
    A few days ago I started to lower run time. No change so I lowered % from 45 to 35, no help

    Any ideas?

    Current levels: FC-6, PH 7.6, TA-70, CYA around 50
    22'x40' IG, Freeform, 26K gal, Vinyl liner pool(2011), three returns plus two step jets, one slide, two skimmers, two LED lights, Stamped Concrete with Aqua PL-Plus Automation panel, Pentair Intelliflo VS, Hayward Pro Series High Rate Sand Filter 500lb, Hayward Turbo Cell T-Cell 15 (SWG) Smart Pool Scrubber60 Robotic Pool Vac.

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    JasonLion's Avatar
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    Re: Chlorine going up

    How has the weather been the last week? Cloudy weather could cause FC to rise.

    Another, less likely possibility, someone else is manually adding chlorine.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    BoDarville's Avatar
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    Re: Chlorine going up

    Another possibility...Has there been a sudden decrease in bathers? It could be a combination of several factors, including those that Jason mentioned.
    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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    cood60's Avatar
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    Re: Chlorine going up

    Yup, it has been cloudy, a fiar amount of rain, temps have moderated a bit as well and less bathers. A good problem eh?

    Thanks for the input
    22'x40' IG, Freeform, 26K gal, Vinyl liner pool(2011), three returns plus two step jets, one slide, two skimmers, two LED lights, Stamped Concrete with Aqua PL-Plus Automation panel, Pentair Intelliflo VS, Hayward Pro Series High Rate Sand Filter 500lb, Hayward Turbo Cell T-Cell 15 (SWG) Smart Pool Scrubber60 Robotic Pool Vac.

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