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Thread: Pool store advice/errors need help

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    Pool store advice/errors need help

    Been away from my pool for a year. Daughter and grandsons in charge. After first swim party since my return pool became cloudy/slight green tinge. I brushed, vacuumed and raised chlorine somewhat for 2 days--no better. First store told me my CYA was 150. I left. I got 75-95, old eyes not so good. Second store said 95 and told me that was ok--continuing to use pucks fine--but must buy/use phosfree for 3 days and then perfect weekly program. Cost $100++. I left. #'s were FC 2ppm, pH 7.6, TA 90, CH 150 CYA 95, phosphates 800. I added 6 pints 8.5% bleach FC up to 13.5 but still too cloudy. I'm in Sacramento so even a partial drain/refill would result in 10 year sentence, minimum. Superchlorinate? How much should I add if so. Any ideas appreciated.
    SACRAMENTO, CA
    15,000 GAL. IG Plaster Pool/Spa w/waterfall size 16' x 30' surface 422 sq ft
    3/4 h.p. pump 70 g.p.m. @ 60 t.d.h.
    turn rate 3.45 hrs
    320 sq.ft. cartridge filter
    Test kit Taylor k-2006 fas-dpd chlorine

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    Skitch's Avatar
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    May 2015
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    Athens, Georgia
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    Re: Pool store advice/errors need help

    If you're confident in that CYA reading, you'll need to take your free chlorine up to nearly 40ppm.

    Pool School - Chlorine / CYA Chart

    Pool Math will tell you how much bleach to add.

    http://www.troublefreepool.com/calc.html
    18k gal AG Sand Filter K-2006

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    Mod Squad tim5055's Avatar
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    May 2014
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    Columbia, SC
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    Re: Pool store advice/errors need help

    Your chlorine is too low for your CYA level and algae is beginning to grow.

    Phosfree is not the answer, as SLAM is. Plus, the guy who told you 95 is good and to keep using tabs is either ill informed of lying.

    Read the directions on SLAMing your pool in the How To section of Pool School and follow that procedure completely to the end. The problem you will have is it will take massive amounts of chlorine to kill the algae with CYA that high.

    CC is 0.5 or lower;
    You pass an OCLT (ie overnight FC loss test shows a loss of 1.0 ppm or less);
    The water is clear.

    When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.
    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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    Richard320's Avatar
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    San Dimas, CA (LA County)
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    Re: Pool store advice/errors need help

    The cure is bleach and brushing and time.

    You've complicated matters with the phosfree. I'm actually rather startled that you didn't report that the water is now milky. Did you read the instructions the manufacturer provides? They even say algae must be treated first.

    For DE & Cartridge Filters: Do not add more than 1.5L (48oz) at a time. If more than 1.5L (48oz) is needed to treat, be sure to clean or backwash the filter between treatments.

    Important: Algae must be treated prior to testing and lowering phosphates. Chlorine must be under 5ppm before testing phosphates.

    http://naturalchemistry.com/en/pool-...tail/phosfree/

    After the stuff has had time to collect and goop up your filter cartridge, you need to clean it off. And then SLAM. Take the FC way up. At 95 CYA, it's going to be an unbelievable 37 FC.

    Call the water company. They may allow a one-time swimming pool fill without penalties, as long as you arrange it. It costs nothing to call and ask. If you can dilute the pool, even down to 60 CYA, it will help a lot.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Pool store advice/errors need help

    Thanks for advice, I didn't buy or use the phosfree--don't know much but knew better than that. I'll start slamming today.
    SACRAMENTO, CA
    15,000 GAL. IG Plaster Pool/Spa w/waterfall size 16' x 30' surface 422 sq ft
    3/4 h.p. pump 70 g.p.m. @ 60 t.d.h.
    turn rate 3.45 hrs
    320 sq.ft. cartridge filter
    Test kit Taylor k-2006 fas-dpd chlorine

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    Join Date
    Jul 2013
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    North Canton, OH
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    192

    Re: Pool store advice/errors need help

    My pool store tested phosphates during an algae bloom and said they were 1500. Per TFPC advice I did not treat the phosphates and instead did a SLAM. Pool is good now. I asked the pool store to test phosphates again when I went in for supplies. This time they said 300 and that it was fine. I pointed out that they had told me 1500 the week before. This person who I have found to be one of the best at this store (she was also the one that said to stop using granular because I was driving my CYA too high) asked if I had algae when they tested before and I said yes. She told me algae interferes with the phosphate test and that in the middle of a bloom I should not worry about anything but chlorine until the bloom was gone.
    30,000 gal IG 20x40 8ft deep end vinyl liner in NE Ohio DOB Sept 2012
    Hayward 4820 DE filter, Hayward SP2610x15 1.5HP single speed pump
    Hayward H400FDN natural gas heater, Frog min'l/Cl2 system (not in use)
    autocover, Dolphin DX4 cleaner, well water, TF100 test kit

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