Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: Ignore PH while slamming?

  1. Back To Top    #1

    Join Date
    Apr 2015
    Location
    Knoxville, TN
    Posts
    64

    Ignore PH while slamming?

    Our pool was opened this week and is a swamp. I'm slamming it and it's starting to clear. But it's slow. PH was ok before slam. Should I do anything to PH during slam or ignore til I'm done?

    Thanks!
    Sand filter
    Salt Generator
    25000 gallon IG Vinyl

  2. Back To Top    #2
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Location
    Elverson Pa.
    Posts
    4,758

    Re: Ignore PH while slamming?

    Ignore it till your done and your FC is below 10. The PH test is invalid at FC levels of 10 or more.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  3. Back To Top    #3
    Smykowski's Avatar
    Join Date
    Sep 2011
    Location
    Gurnee, IL (North Suburban Chi-town)
    Posts
    3,065

    Re: Ignore PH while slamming?

    Welcome to the forum!

    Yes, ignore pH. The test is inaccurate when FC is over 10. Because pH in most pools drifts up slowly, lowering pH to the low 7s before starting the SLAM helps counter the rise.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  4. Back To Top    #4

    Join Date
    Apr 2015
    Location
    Knoxville, TN
    Posts
    64

    Re: Ignore PH while slamming?

    Thank you! I'm watching the FC like a hawk today. Day three of slamming the swamp and its holding a lot better. My dog chewed up the reagent I need to test CC so I don't know what to do about testing CC to see if I'm done with the slam. Bad dog!
    Sand filter
    Salt Generator
    25000 gallon IG Vinyl

  5. Back To Top    #5
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Ignore PH while slamming?

    You should be able to find that reagent locally I think.
    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!

  6. Back To Top    #6

    TFP Guide

    Kiss4aFrog's Avatar
    Join Date
    May 2013
    Location
    Hudson, WI
    Posts
    2,602

    Re: Ignore PH while slamming?

    Welcome to the forum Rere

    BUT . . . if before you add you find you've dropped below 10 you can always do a quick adjustment to the pH. When you say it was "good" . . where were you at ??
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, become a TFP Supporter!

  7. Back To Top    #7

    Join Date
    Apr 2015
    Location
    Knoxville, TN
    Posts
    64

    Re: Ignore PH while slamming?

    Quote Originally Posted by kiss4afrog View Post
    Welcome to the forum Rere

    BUT . . . if before you add you find you've dropped below 10 you can always do a quick adjustment to the pH. When you say it was "good" . . where were you at ??
    We were at 7.2

    Tested just for fun and it's 7.6
    Sand filter
    Salt Generator
    25000 gallon IG Vinyl

  8. Back To Top    #8
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Ignore PH while slamming?

    Just ignore it until you are done SLAMing.
    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

  9. Back To Top    #9

    TFP Guide

    Kiss4aFrog's Avatar
    Join Date
    May 2013
    Location
    Hudson, WI
    Posts
    2,602

    Re: Ignore PH while slamming?

    If you started out at 7.2 you're golden
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, 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
  •