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Thread: Help!

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    Join Date
    May 2016
    Location
    Chattanooga, TN
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    5

    Help!

    Hey all,
    I am a new pool owner, just acquired in April. I have been searching through this site looking for answers/guidance on maintenance. I have purchased the TFT 100 and here are the results..
    pH <6.8 (per the pool place here in town it was 6.4..YIKES)
    FC 1
    CC 0
    CH 200
    TKA 10
    CYA ~115

    Amazingly the water is clear, but there is some white/clear stuff beginning to float on it (?algae). Please help me get this situation resolved so i can begin to enjoy my new purchase. Thanks y'all!!
    16x32 (22K gal)/ IG/ vinyl liner/Hayword Proseries Sand filter

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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: Help!

    Welcome to TFP!!

    I wold say right now go out and pour a bottle of bleach in the pool to get the FC up. 1ppm is WAY too low for CYA north of 100.

    How did you test CYA to 115? The TF-100 CYA test tops out at 100.

    Mixing pool store advice/testing with TFP methods is just another recipe for disaster.

    If you have read around here much you have probably seen that not much credence is given to pool store testing. While you would think that a "professional" would be the best, unfortunately in most cases it is quite the opposite. Between employees who blindly trust the word of chemical sales representatives and high school kids working in the pool store for the summer you end up with poor results from their testing. In my case two different pool stores told me my CYA was "fine", around 70 or 80. When I tested myself (using special methods) I found it over 200.

    How much Pool School have you read? Start with these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals

    In the Recommended Pool Chemicals article you should pay attention to the section "Raising PH" That will be your next project which should be taken care of today. pH that low can damage equipment. So, I see a visit to WalMart in your future for soda ash. Soda ash is available as ARM & HAMMERŪ Super Washing Soda Detergent Booster. Do not confuse this with ARM & HAMMERŪ laundry detergent! It is sold in the laundry detergent section of most larger grocery stores and some big box stores. It is also sold by pool stores under various names, including PH Increaser, PH Up, Balance Pak 200, etc. Soda ash is best added by pre-dissolving it in a bucket of water and then pouring that slowly in front of a return.
    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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    Mod Squad pooldv's Avatar
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    Re: Help!

    Welcome to TFP!
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Richard320's Avatar
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    Re: Help!

    Welcome

    Start by repeating that CYA test using the dilution method. You can fill the mixing bottle to the bottom of the label with pool water, then fill to the top of the label with tap water and mix it, then pour off half -- back to the bottom of the label -- and proceed with the rest of the test. Alternately, mix a cup of pool water and a cup of tap water in a clean container and pour some of that as your sample instead of straight pool water to the line in the mixing bottle and add the R-0013 to that. Be sure to take several readings, back-and-forth between view tube and mixing bottle until you're satisfied. Then double that reading. That's your CYA level.

    If it's still way high, you'll want to consider some water replacement. And if so, there's no point in treating the water in the pool now, just to dump it out in a few hours. Odds are the previous owner relied on pucks to chlorinate, or a pool service that relied on pucks, and that's why the CYA has built up so high. It is possible to maintain a pool with real high CYA, but it's not easy and I don't recommend it. I had to because of water restrictions and I have found it so much easier to maintain with a reasonable CYA level.

    If it's a reasonable number, then you deal with pH, TA, and FC. Get back to use with a solid CYA number and we can advise you better.
    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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    Join Date
    May 2016
    Location
    Chattanooga, TN
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    5

    Re: Help!

    Here are the numbers I just did:
    FC 8
    CC 0
    CYA 90-100 (multiple tests in between that using dilutional and non dilutional methods)
    CH 250
    TA 30

    I do have 25lbs of 100% bicarb if that is any form of the solution and approx 1lb of Borax
    16x32 (22K gal)/ IG/ vinyl liner/Hayword Proseries Sand filter

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    Richard320's Avatar
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    Re: Help!

    Quote Originally Posted by kirklaura View Post
    Here are the numbers I just did:
    FC 8
    CC 0
    CYA 90-100 (multiple tests in between that using dilutional and non dilutional methods)
    CH 250
    TA 30

    I do have 25lbs of 100% bicarb if that is any form of the solution and approx 1lb of Borax
    Are you feeling up to a partial drain to get CYA down to the 60-70 range?

    If no, then raise TA to about 60 using some of that bicarbonate and let it mix well, then recheck pH and use some of that Borax to fix it the rest of the way.
    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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