Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: High ph issues

  1. Back To Top    #1

    Join Date
    Aug 2014
    Location
    pawhuska ok
    Posts
    15

    High ph issues

    OK, so I live in an area that has had high ph issues in years past, and it appears is starting to again. Maybe it never stopped, and I just wasn't noticing it. Fresh out of the tap, my ph is around 7.5, which it was when I refilled and restarted my pool earlier in the summer. I figured ok, a little off, but just a couple points, not anything to worry about. Over the last month, I have been battling algae, so chlorine has been high enough that I did not test ph. Last week chlorine came down below 5, so tested ph. It was up to 8.2! The only thing I have ever added to my pool has been bleach and stabilizer at the beginning, to get cya up to 40. I put in 12 oz of ph down that I had around the house from last year, checked ph an hour later, added another 12 oz, then another. By then it was getting dark and needed to add more bleach, so left off with the ph issue for a few days as it seemed to be coming down to like 7.8. Checked it again yesterday, and it was still 8.2. Added the rest of the bottle of ph down. So running the full gamut of tests today:
    Ph 8.2
    TA 170
    CH 225
    FC 5
    CYA out of reagent, should still be close to 40 since I have not removed water other than dirty water from filter. Takes about 2 to 3 days for chlorine to drop.
    I know the cure to high TA is to reduce PH, but if it just bounces back up, there has to be something else I should be doing? Just for grins, tested tap water CH is 150.
    Thank you!
    Pool:18x48 round Intex above ground metal frame pool. Approx.. 6500 gal.
    Cartridge filter, 1500 gph. Came with pool. Vinyl liner. Setup completed 8/7/14. Finished filling with water next day.

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    33,888

    Re: High ph issues

    Just sounds like you have not been adding enough acid to keep the pH in check.
    With the high TA, that makes the pH rise even faster.
    As you keep dropping the pH back down, the TA should also slowly go down, which will in turn slow the pH rise rate.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  3. Back To Top    #3

    Join Date
    Aug 2014
    Location
    pawhuska ok
    Posts
    15

    Re: High ph issues

    Ok, so using a whole jar of ph down and it still bouncing back to 8.2 is not unusual then? That is reassuring. Thanks.
    Pool:18x48 round Intex above ground metal frame pool. Approx.. 6500 gal.
    Cartridge filter, 1500 gph. Came with pool. Vinyl liner. Setup completed 8/7/14. Finished filling with water next day.

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    33,888

    Re: High ph issues

    Use muriatic acid and not the more expensive solid pH down.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •