Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: High Borates

  1. Back To Top    #1

    Join Date
    Mar 2009
    Location
    Galveston, Tx
    Posts
    16

    High Borates

    I added borates to my pool according to the directions about three weeks ago, but the borate strip reading is greater than 50. How do I calculate the amount of water I need to replace?

    TC 7
    pH 7.3
    T/A 70
    CH 200
    CYA 65-70
    23 K Gal
    DE
    IG
    gunite
    2 Hp Pentair pump
    Filter: DE Nautilis FNS 60

  2. Back To Top    #2

    Join Date
    May 2007
    Location
    Montreal Canada
    Posts
    326

    Re: High Borates

    Quote Originally Posted by mcase
    I added borates to my pool according to the directions about three weeks ago, but the borate strip reading is greater than 50. How do I calculate the amount of water I need to replace?

    TC 7
    pH 7.3
    T/A 70
    CH 200
    CYA 65-70


    Say you're at 80 ppm borates and you want 50, the fill water has 0 ppm borates:

    (80 - 50) ÷ (80 - 0)
    30 ÷ 80 = drain and refill about 37%


    Another example, if your CH is 600, you want 300 and the fill water is at 50 ppm:

    (600 - 300) ÷ (600 - 50)
    300 ÷ 550 = drain and refill about 55%.

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,078

    Re: High Borates

    Calculate the percentage of borates you wish to remove from your pool and remove the same percentage of water.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: High Borates

    I realize this is not the question you asked, but if you only overshot a little, (like maybe up to 80).........you might want to read this thread instead of adjusting:

    so-you-want-to-add-borates-to-your-pool-why-and-how-t4921-100.html?hilit=borates%2080
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: High Borates

    So long as you are measuring under 80 ppm, I wouldn't worry about it.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

Posting Permissions

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