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Thread: Do I need to ADD BORIC ACID again this year if I already added it last year???

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    Join Date
    Jul 2010
    Location
    North Bergen, NJ
    Posts
    172

    Do I need to ADD BORIC ACID again this year if I already added it last year???

    Just a quick question, I added approx 25lb of Boric Acid to my pool last year (14x26 in ground vinyl approx 9500-10,500). I closed it at the end of the summer here in NJ. I just reopened the pool (it was covered with a Loop Lock Mesh cover) and shocked and cleared up my pool a few days now. So Im wondering if I need to now re add Boric Acid again?

    Also how can I measure the PPM for Borates in my pool if I need to know the levels?

    thanks all!
    Design 14x26 (10,000 gal) in ground vinyl pool, 2 Wide Mouth Skimmers, 3 Returns
    Equip 3.0 HP Pentair VS pump motor, 48 FNS Plus DE filter, IC20 SWCG, 400Btu NG Heater
    Extras Easy Touch Automation, Pentair LED Lite, Kreepy Krawl Racer pressure cleaner
    Water pH 7.5, Total Alk 90, Free Cl 4.5, Combine Cl 0.25, CYA 65, CH 275, Salt 4100ppm, Borates (Boric Acid) 50ppm

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    pabeader's Avatar
    Join Date
    May 2015
    Location
    Dallas Ga
    Posts
    4,064

    Re: Do I need to ADD BORIC ACID again this year if I already added it last year???

    It's probably still in there but to check it here is the test. TFTestkits.net
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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    JoyfulNoise's Avatar
    Join Date
    May 2015
    Location
    Tucson, AZ
    Posts
    11,605

    Re: Do I need to ADD BORIC ACID again this year if I already added it last year???

    Both Hach and LaMotte make test strips for borates (both available on Amazon). Not the best in terms of precision values but it will tell you what ball park you're in. Only water exchange lowers borates.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Join Date
    Jul 2010
    Location
    North Bergen, NJ
    Posts
    172

    Re: Do I need to ADD BORIC ACID again this year if I already added it last year???

    thanks all for your help...I purchased the Borates test kit and found my Borates to be approx 50ppm so I think I will not add anything. I will say these strips do leave some ambiguity as the colors all do look very similar
    Design 14x26 (10,000 gal) in ground vinyl pool, 2 Wide Mouth Skimmers, 3 Returns
    Equip 3.0 HP Pentair VS pump motor, 48 FNS Plus DE filter, IC20 SWCG, 400Btu NG Heater
    Extras Easy Touch Automation, Pentair LED Lite, Kreepy Krawl Racer pressure cleaner
    Water pH 7.5, Total Alk 90, Free Cl 4.5, Combine Cl 0.25, CYA 65, CH 275, Salt 4100ppm, Borates (Boric Acid) 50ppm

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