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Thread: PH issues

  1. Back To Top    #1

    PH issues

    hi all,
    my pool is almost 8 weeks old and everything seems to be going well, but it is a daily chore to keep my numbers on target.

    I need some advice on stabilizing my ph levels. it seems to rise pretty fast.

    for example, last night my ph was at 7.2' I added some LC to get my Chlor. levels up from 3 to 4 ( per the TFP cya/Chl level chart). This morn, my PH was around 8 so I added acid.

    I know chlor. will boost PH, but my PH seems to constantly be on the rise and seems to be hypersensitive. anything I can do to buffer the ph?

    here are my numbers as of this morn:

    PH: 8
    FC: 4-5
    CC:0
    TA: 80
    CyA: 40

    Also, i do have a spillover out of the jacuzzi that runs about 19 hours per day with the pump.

    What should i do?
    Southern California/sun all day
    26k gal/in-ground plaster/jacuzzi spillway
    dual speed 1.5/2.5 Hayward
    Cartridge Filter
    UV Ozonator
    Inline Chlorinator
    Wife in bikini and Margarita maker

  2. Back To Top    #2
    Guest

    Re: PH issues

    You have a new plaster pool, it is the nature of the beast! Just check the pH daily and add acid as needed. Your acid demand will slow down as the plaster cures. Make sure to keep extra acid on hand for the first year.
    Some other suggestions that might or might not work (because of the new plaster):
    Turning off your ozonator should help more than anything else. Lower your TA a bit more and possibly try adding borates to your water.

    Also, you might want to consider using triclor until you CYA reaches around 50-60 ppm. The acidic nature of trichlor works very well with new plaster to help control pH rise.

  3. Back To Top    #3

    Re: PH issues

    OK, I figured it was the new plaster, I just cant imagine a day when it will stabilize, but I am sure it will. I stopped using the inline chlorine feeder because i did not want CYA to get out of hand, but I will raise my CYA a bit per your suggestion.

    Regarding the Ozonator, I have not had to shock my pool once since the opening as CC levels have been at 0 always. I have to attribute that to the ozonator. I know the jury is still out on the value of ozonators (especially UV ones), but mine seems to be doing the job in terms of breaking up the chloramines. I am hesitant to turn it off for that reason.

    Also, i am going away for a week next month. Do you have any advice on how to make sure i don't come back to a green pool with a PH of 25 (ha ha)?
    Southern California/sun all day
    26k gal/in-ground plaster/jacuzzi spillway
    dual speed 1.5/2.5 Hayward
    Cartridge Filter
    UV Ozonator
    Inline Chlorinator
    Wife in bikini and Margarita maker

  4. Back To Top    #4

    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,160

    Re: PH issues

    1 thing I didn't see in your test #s is calcium? To keep the water balanced in a plaster pool, it's important to know the calcium hardness level, you can then plug your numbers into Jason's Pool Calculator (linked in my sig) and see what you need to change.

    As Waterbear said the trichlor can help fight the pH rise and use of it for a few weeks (like when you're on vacation) will add to the cya (to help get you to the 50- 60 ppm he recommends ).

    I hope you can gain control of the pH and that you have a great vacation. If there's a problem with the pool when you get back, we'll be here to help solve it!
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

  5. Back To Top    #5
    Guest

    Re: PH issues

    I am suggesting the trichlor to help fight the pH rise from the new plaster and saying to stop when you hit 50-60 ppm CYA is because that is a workable CYA level in a pool. Higher becomes problematic.

  6. Back To Top    #6

    Re: PH issues

    dont have calcium tester, but i am heading to the pool store this weekend.

    thanks for all the help
    Southern California/sun all day
    26k gal/in-ground plaster/jacuzzi spillway
    dual speed 1.5/2.5 Hayward
    Cartridge Filter
    UV Ozonator
    Inline Chlorinator
    Wife in bikini and Margarita maker

  7. Back To Top    #7

    Re: PH issues

    Ok, calcium level is 420. Pool store guys said its high, but should not worry about it. Our tap water is pretty hard here to startm

    What do u think as it relates to my swinging (and not in the 70's fun way) PH levels?
    Southern California/sun all day
    26k gal/in-ground plaster/jacuzzi spillway
    dual speed 1.5/2.5 Hayward
    Cartridge Filter
    UV Ozonator
    Inline Chlorinator
    Wife in bikini and Margarita maker

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