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Thread: Pool is now completed but i have high TA and PH

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    Pool is now completed but i have high TA and PH

    Hi guys,

    Our pool is open now and I've received my TF100 test kit. I took my first readings with the kit this morning.

    FC-4
    PH-8.2
    TA-240
    CYA-60

    Test strips were giving me high PH and TA levels also but I waited to confirm with my test kit. From researching the board it looks like I need to add 80 ounces of muriatic and then aerate with the deck jets. Am I on track or are other steps also recommended?

    This board is awesome. My wife is already calling me her pool boy

    Thanks Guys!
    13k fiberglass in ground
    Pentair intellipro variable speed pump
    Intellichlor40 swg
    30spf sunscreen :)

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    Richard320's Avatar
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    Jan 2010
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    San Dimas, CA (LA County)
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    Re: Pool is now completed but i have high TA and PH

    You have it figured out. Acid will fix both.

    But your FC is too low for 60 CYA.
    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 is now completed but i have high TA and PH

    Thanks Richard. I'll adjust the pump run time or SWG % to get FC closer to the 5-6 range. I'm still trying to dial it in. I may add some bleach right away and then monitor it to see if the swg keeps up.
    13k fiberglass in ground
    Pentair intellipro variable speed pump
    Intellichlor40 swg
    30spf sunscreen :)

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    Join Date
    Jun 2013
    Location
    Oklahoma City, OK
    Posts
    27

    Re: Pool is now completed but i have high TA and PH

    having just dropped my TA from 200 to 120 I'll warn you to be ready to use a lot of muriatic acid. There is a page in pool school that lines out exactly how to do it - you want to lower your pH to 7-7.2 then aerate and let it come up to 7.6 then hit it with acid again drop drop it back to 7-7.2 and keep doing that - I've been doing acid additions twice/day per the calculator it's about 60 oz each time - so I'm going through 1 gallon/day although I have more water to deal with.

    Since he has a SWG does he really need to get the FC to the 5-6 range with a CYA level of 60? My SWG manual recommends a CYA of 50-75 and a FC 1-3 (for maintenance) and I had read that SWG pools can get by with less FC - yes or no?
    25,000 gal in-ground gunite with spa and waterfall, Jandy Aquapure 1400 SWG, Jandy CL580 cartridge filter, Raypak gas heater

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    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Pool is now completed but i have high TA and PH

    Quote Originally Posted by Rossko
    having just dropped my TA from 200 to 120 I'll warn you to be ready to use a lot of muriatic acid. There is a page in pool school that lines out exactly how to do it - you want to lower your pH to 7-7.2 then aerate and let it come up to 7.6 then hit it with acid again drop drop it back to 7-7.2 and keep doing that - I've been doing acid additions twice/day per the calculator it's about 60 oz each time - so I'm going through 1 gallon/day although I have more water to deal with.

    Since he has a SWG does he really need to get the FC to the 5-6 range with a CYA level of 60? My SWG manual recommends a CYA of 50-75 and a FC 1-3 (for maintenance) and I had read that SWG pools can get by with less FC - yes or no?
    Those recommendations are probably written by the same guys who make recommendations for pool store test result sheets.

    5-6 is a target range for SWG with 60 CYA. When the SWG is off, the level will drop. If he starts the day at 4, there's a good chance it will dip too low. It should never ever go below 3.
    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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