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Thread: Reduce TA without affecting PH

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    Reduce TA without affecting PH

    TA is 125
    PH is 7.4
    How do I get TA to 80 and not change PH?
    If MA is added TA is reduced and so is PH. What is the best way?
    Thanks to all. Jim
    11.2K gal, IG pebble, 1.5 HP pump single speed, 200 sq ft cartridge filter, built 1997, Taylor K-2006, SWG Hayward T9 6/13, Borax treatment, Return to 6 wall ports 2" pipe from pad to 1.5" pipe, Return to 8 floor outlets 2" pipe, total of two returns, and two suction pipes both 2", Skimmer(1) Main(1), No Spa or other equipment.

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    Mod Squad jblizzle's Avatar
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    Re: Reduce TA without affecting PH

    What you are asking how to do is not possible.

    Read Pool School:
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    Re: Reduce TA without affecting PH

    Thanks for quick reply and links Jason. Looks like Aeration for me also. Thanks again. Jim
    11.2K gal, IG pebble, 1.5 HP pump single speed, 200 sq ft cartridge filter, built 1997, Taylor K-2006, SWG Hayward T9 6/13, Borax treatment, Return to 6 wall ports 2" pipe from pad to 1.5" pipe, Return to 8 floor outlets 2" pipe, total of two returns, and two suction pipes both 2", Skimmer(1) Main(1), No Spa or other equipment.

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    Re: Reduce TA without affecting PH

    Reducing TA from 125 to 80 shouldn't take too long. If I were you, I wouldn't bother making a special aeration device, maybe just point your returns upwards.

    Also, unless you have a SWG, there's no rush to reduce TA. Just wait until your pH climbs to 7.8, add acid to reduce to 7.2, and repeat.
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    Re: Reduce TA without affecting PH

    Why do you want to reduce the TA? What type of chlorine do you use?

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    Re: Reduce TA without affecting PH

    Quote Originally Posted by faby3003
    Reducing TA from 125 to 80 shouldn't take too long. If I were you, I wouldn't bother making a special aeration device, maybe just point your returns upwards.

    Also, unless you have a SWG, there's no rush to reduce TA. Just wait until your pH climbs to 7.8, add acid to reduce to 7.2, and repeat.
    Good suggestion. However I did pick up parts today to make aeration device, now need to figure out how to connect to wall port. Its a 1" outlet flange attached to what I think is 1.5" pipe. Not sure just yet.

    Trying to get correct numbers for Borax application then add SWG.

    Thanks for your response. Jim
    11.2K gal, IG pebble, 1.5 HP pump single speed, 200 sq ft cartridge filter, built 1997, Taylor K-2006, SWG Hayward T9 6/13, Borax treatment, Return to 6 wall ports 2" pipe from pad to 1.5" pipe, Return to 8 floor outlets 2" pipe, total of two returns, and two suction pipes both 2", Skimmer(1) Main(1), No Spa or other equipment.

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    Re: Reduce TA without affecting PH

    Quote Originally Posted by JamesW
    Why do you want to reduce the TA? What type of chlorine do you use?
    Going to Borax application then SWG. Just trying to get numbers in order first.
    11.2K gal, IG pebble, 1.5 HP pump single speed, 200 sq ft cartridge filter, built 1997, Taylor K-2006, SWG Hayward T9 6/13, Borax treatment, Return to 6 wall ports 2" pipe from pad to 1.5" pipe, Return to 8 floor outlets 2" pipe, total of two returns, and two suction pipes both 2", Skimmer(1) Main(1), No Spa or other equipment.

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    Re: Reduce TA without affecting PH

    Hey guys, what do you think of this. Finished my weekend project which was adjusting numbers so that I could do Borax application and salt pool for SWG install later this week. Here are numbers after Borax and Salt added to pool water. Borax sticks are on backorder and should have CYA refreshed by thur. First column is using Taylor K-2006 second column is from free store PAP. Let me have your thoughts Please. Thanks jim
    DATE 06/03/13 Same Day
    FC 8.0 3.0
    CC 0.5 0.0
    TC 8.5 3.0
    PH 7.4 7.4
    TA 75 110
    CH 275 300
    CYA 35 90
    SALT
    K-2006 PAP
    11.2K gal, IG pebble, 1.5 HP pump single speed, 200 sq ft cartridge filter, built 1997, Taylor K-2006, SWG Hayward T9 6/13, Borax treatment, Return to 6 wall ports 2" pipe from pad to 1.5" pipe, Return to 8 floor outlets 2" pipe, total of two returns, and two suction pipes both 2", Skimmer(1) Main(1), No Spa or other equipment.

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    JasonLion's Avatar
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    Re: Reduce TA without affecting PH

    Looking good! Ignore the pool store results and depend on your own testing.

    Your CYA level is low for where you will want it when you get the SWG. You should raise CYA in two or three steps. It is easy to raise CYA further if you add too little, but difficult to lower CYA, so best to sneak up on your target level.
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    Re: Reduce TA without affecting PH

    Quote Originally Posted by flyboytfp
    Hey guys, what do you think of this. Finished my weekend project which was adjusting numbers so that I could do Borax application and salt pool for SWG install later this week. Here are numbers after Borax and Salt added to pool water. Borax sticks are on backorder and should have CYA refreshed by thur. First column is using Taylor K-2006 second column is from free store PAP. Let me have your thoughts Please. Thanks jim
    DATE 06/03/13 Same Day
    FC 8.0 3.0
    CC 0.5 0.0
    TC 8.5 3.0
    PH 7.4 7.4
    TA 75 110
    CH 275 300
    CYA 35 90
    SALT
    K-2006 PAP
    This is exactly why we say get your own high quality test kit and trust your results! If I was you, I wouldn't even bother with another pool store test again.
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    Re: Reduce TA without affecting PH

    Here is latest test results:
    FC 9.5
    CC 0.5
    TC 10
    PH 7.2
    TA 75
    CH 250
    CYA 70
    SALT 3600 with K-2006
    SALT 2910 with AquaChek sticks
    Confused as to why FC jumped from 4.5 to 9.5 when only change was CYA from 30 to 70. Any ideals?
    Would I be safe to install ARQ SWG now with these numbers?
    Thanks. Jim
    11.2K gal, IG pebble, 1.5 HP pump single speed, 200 sq ft cartridge filter, built 1997, Taylor K-2006, SWG Hayward T9 6/13, Borax treatment, Return to 6 wall ports 2" pipe from pad to 1.5" pipe, Return to 8 floor outlets 2" pipe, total of two returns, and two suction pipes both 2", Skimmer(1) Main(1), No Spa or other equipment.

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    Richard320's Avatar
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    Re: Reduce TA without affecting PH

    Quote Originally Posted by flyboytfp
    Here is latest test results:
    FC 9.5
    CC 0.5
    TC 10
    PH 7.2
    TA 75
    CH 250
    CYA 70
    SALT 3600 with K-2006
    SALT 2910 with AquaChek sticks
    Confused as to why FC jumped from 4.5 to 9.5 when only change was CYA from 30 to 70. Any ideals?
    Would I be safe to install ARQ SWG now with these numbers?
    Thanks. Jim
    You've slowed the UV losses would be my guess.

    Yeah, looks like it's time to fire off the SWG.
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