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Thread: does polyquat 60 raise pH?

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    does polyquat 60 raise pH?

    I have been doing everything just as I always have. My pH has been pretty consistent. There was a big rain last night and today. I drained some out and checked the chemicals. My CL as still at 11, but my pH was over 8. I added the drops for the acid demand test and just don't think something is right. I added about 2-3 drops at a time and then mixed. The color changed to purple and then as I got to 35 drops, the color changed to yellow (low pH). There was never the pinkish orange (or however you would describe the color of 7.6)

    Before I did anything, I wanted to ask opinions. I added the polyquat about an hour before i did the test.
    Pam
    approx. 30000 gallon IG 40x20 vinyl pool w/ cartridge filter

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    JasonLion's Avatar
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    Re: does polyquat 60 raise pH?

    Polyquat will not have a significant effect on the PH, though it might raise it just a little.

    If you post a full set of water test results we might be able to figure out what is happening.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: does polyquat 60 raise pH?

    Here's my numbers

    Cl 11 (same as it was this morning--it was overcast all day)
    cc 0
    pH 8 (could be higher)
    TA 110
    CYA 90
    CH 110
    Pam
    approx. 30000 gallon IG 40x20 vinyl pool w/ cartridge filter

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    JasonLion's Avatar
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    Re: does polyquat 60 raise pH?

    Hum, nothing there stands out.

    Rain can raise the PH, though not usually dramatically. If it was a major storm then it was probably the rain.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: does polyquat 60 raise pH?

    ok then, I'll just get out the MA and low it a little. I think start with about 12 oz. and then check it again.

    Should I lower the pH to 7.4 or 7.6?
    Pam
    approx. 30000 gallon IG 40x20 vinyl pool w/ cartridge filter

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    JasonLion's Avatar
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    Re: does polyquat 60 raise pH?

    I would aim for a PH of 7.4 or 7.5.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    frustratedpoolmom's Avatar
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    Re: does polyquat 60 raise pH?

    Go with the 7.4 to give you some cusion while you are gone, then if it raises a bit while you're away you should still be okay.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
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