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Thread: Fired my pool company

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    Fired my pool company

    After reading more on this forum and being confident I did not need to pay someone else to maintain my pool, I installed a Nano Digital SWG and converted it over. I've run into one issue. My FC does not seem to be coming down from the crazy high level that the service company was keeping it at. After diluting pool water 2 to 1 with Distilled Water, I got a FC of 33, and that's after two weeks since they did their "weekly shock". I have turned down the SWG to 30%, but with a 10k pool, and SWG rated at 22k, I expect something else is keeping the FC so high. Any ideas? The CYA is also quite high at 120, and I've considered draining and refilling some to bring it down. Is that suggested?

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    Charlie_R's Avatar
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    Re: Fired my pool company

    Drain and refill to bring it down into the 60-80 range would be a good thing. Use PoolMath to know how much to drain.

    Have you considered purchasing a better test kit yet? The TF-100 and the K-2006 (not the K-2005!) both can accurately measure up to 50 ppm FC. Both are available from http://TFtestkits.net, your best value would be the TF-100. With that kit, you wouldn't have to dilute to see the higher FC, which introduces large errors in the indicated values.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Richard320's Avatar
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    Re: Fired my pool company

    I'd just shut that SWG off completely so the FC drops low enough to go swimming.

    How long are you running the filter each day? If the pump and the SWG are both on 24/7 you're wasting money and overchlorinating. Two weeks is too much time to still be blaming the pool service for the high FC. They could have raised FC to 100 and it would be all gone in a few days.
    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: Fired my pool company

    Im with Richard on this one. Shut off your SWG and measure FC daily....keep off the SWG until FC is where you want it. if your pool is in the sun at all during the day FC will come down steadily.
    33' x 52" Swim and Play Inc. PARAGON AGP. Hayward H200 Heater. Hayward Power-Flo LX 1.5hp pump. Sta-Rite Cristal Flo T-210WF Sand Filter. Stenner 45M5 chlorine pump

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    Re: Fired my pool company

    I agree that you need to turn off the SWG until the FC drops to your desired level and then turn it back on.

    How long are you running the pump? You will need to adjust the output % and pump run time until you are happy with the water quality and FC level.

    What test did you use to measure the CYA at 120?
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

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    Re: Fired my pool company

    Thanks for the tips. I am using a K-2006 kit, was just trying to save reagent with the high readings. I'll take the suggestion and turn off the SWG until things are back under control.

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    Re: Fired my pool company

    Did you use half tap water and half pool water then double the result to measure the CYA at 120? If so, I would drain about a third of the water to reduce the CYA to 80. Try the half tap water and half pool water to retest the CYA if you did not do that as the CYA test is difficult to accurately read when it is above 100.

    If the CH is really high then you might want to drain even more of the water.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

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    Re: Fired my pool company

    Quote Originally Posted by ping View Post
    Did you use half tap water and half pool water then double the result to measure the CYA at 120? If so, I would drain about a third of the water to reduce the CYA to 80. Try the half tap water and half pool water to retest the CYA if you did not do that as the CYA test is difficult to accurately read when it is above 100.

    If the CH is really high then you might want to drain even more of the water.
    I took the CYA without diluting at had to estimate a bit as it was quite so high, and the scale is not linear. Only diluted for the FC test since the first time I was afraid I was going to use the entire bottle of reagent before it went back to clear. Was also not using tap water, but water known not to have any chlorine. I may redo the CYA test diluted to get a more accurate reading since it was off the scale, and it could be higher than 120.

    Appears the service company was using some sort of pucks in the chlorinator. That can raise the CYA over time correct? I fished all the pieces out of there I could.

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    Mod Squad tim5055's Avatar
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    Re: Fired my pool company

    Quote Originally Posted by wolfson292 View Post
    I may redo the CYA test diluted to get a more accurate reading since it was off the scale, and it could be higher than 120.

    Appears the service company was using some sort of pucks in the chlorinator. That can raise the CYA over time correct? I fished all the pieces out of there I could.
    Yes, the pucks add CYA.

    I also had to dilute to get a true CYA reading. I guessed 150 without dilution and ended up over 200 in actuality.
    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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