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Thread: Is my PH to high???

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    Is my PH to high???

    I have a swg plaster pool. I'm curious about what is the ideal pool chemistry. My test results are as follows

    FC 2.5
    CC 0
    PH 8.0
    TA 70
    CH 230
    CYA 30

    I have to add about a gallon of MA every week to keep the PH below 8. I can add the acid and within a day or so it is back up between 7.8 and 8.0. Is that to high?
    32,000 gallon inground plaster pool/spa combo spillover. Aqua Rite Pro with Sense and Dispense. Jandy iAquaLink Control. Polaris 280 vac. Sheer Descent, Fiber optic deck jet water feature. Vanishing wall. Whisperflo pumps, Pentair clean and clear cartridge filters.

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    Propbndr's Avatar
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    Re: Is my PH to high???

    It is on the high side. Here are the recommended levels:

    http://www.troublefreepool.com/conte...mmended-levels

    Your CYA and FC are too low for a SWG pool.

    Edit: CA is also a little low for a plaster pool.
    Steve
    32 X 16 inground, 17260 gallons, Vinyl Liner, Triton II TR-60 filter,
    Sta-Rite 1hp pump Model #MPRA6E-147L, CircuPool SI-30 Plus SWG, TF-100 Test Kit

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    Azgirl71's Avatar
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    Re: Is my PH to high???

    8 is high. I would continue to add MA to bring it down. Maybe shoot to bring it down to 7.4 then check in a couple days.
    Your FC is to low. The minimum target level is 4 for a CYA of 30

    - - - Updated - - -

    You want to bring up your CYA to around 70 also since you have a SWG and target FC5 instead of 4
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Mod Squad pooldv's Avatar
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    Re: Is my PH to high???

    Here is a nice article from Pool School on Water Balance for SWCGs
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    Divin Dave's Avatar
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    Re: Is my PH to high???

    If you pool is farily new, or renovated and the plaster is less than about a year old, then you can expect the pH to rise quickly and often. Its a natural part of the plaster curing process. Once the plaster is a bit matured, the pH rise will slow down... depending of course whether you maintain your water parameters.

    your Ph is definitely too high. Lower it to 7.6. Lowering it much further in hopes of not having to dose acid as often may very well have the adverse effect and it makes the pH rise back up quicker.

    Get your CYA up to 70ish and maintain it there for a SWG pool
    FC to 7.5 and dont let it get below 5.

    If you bump your TA down a smidge to 60, it may help a bit in buffering the pH.

    I would also recommend to raise the CH up to 250.

    Quote Originally Posted by 1poolguy View Post
    I have a swg plaster pool. I'm curious about what is the ideal pool chemistry. My test results are as follows

    FC 2.5
    CC 0
    PH 8.0
    TA 70
    CH 230
    CYA 30

    I have to add about a gallon of MA every week to keep the PH below 8. I can add the acid and within a day or so it is back up between 7.8 and 8.0. Is that to high?
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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