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
    28,417

    Re: High Borates

    Calculate the percentage of borates you wish to remove from your pool and remove the same percentage of water.
    Dave S. - Forum owner
    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
    12,085

    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
  •