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Thread: which is more accurate the poolmath website or the poolmath app?

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    Join Date
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    which is more accurate the poolmath website or the poolmath app?

    I am entering my info in both and the results are different

    Which one is more accurate?
    Fresh Warer pool15k gallons
    Pentair Clean and Clear RP filter
    Pentair 320 chlorine filter
    1-1.5 Hp pump//TF-100 test kit

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    Re: which is more accurate the poolmath website or the poolmath app?

    Can you give some example calculations? I've never seen any significant difference between the two.
    20' X 40' IG vinyl lined; 31,300 gallons; built ~30years ago
    Hayward 1HP Single Speed Pump w/Sand Filter
    Taylor K-2006,Rola-chem sodium hypo feeder/ 15 gallon tank
    Fill from soft/neutral well water, low flowrate well pump

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    Administrator Leebo's Avatar
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    Re: which is more accurate the poolmath website or the poolmath app?

    They’re both dead on......

    Please make sure your settings use the same pool size on both and make sure they’re both using the same unit of measurement (gallons, liters)

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    Re: which is more accurate the poolmath website or the poolmath app?

    Pool volume
    14k
    Current chlo one 1
    Rise to 3
    Cya is 35
    App says add 37 oz
    Website says add 34oz

    Ph from 7.4 to 7 Ta 110
    App says 46 oz
    Website says add 43oz
    Fresh Warer pool15k gallons
    Pentair Clean and Clear RP filter
    Pentair 320 chlorine filter
    1-1.5 Hp pump//TF-100 test kit

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    Re: which is more accurate the poolmath website or the poolmath app?

    Quote Originally Posted by Fugazi View Post
    Pool volume
    14k
    Current chlo one 1
    Rise to 3
    Cya is 35
    App says add 37 oz
    Website says add 34oz
    Using 10.5 trade% bleach, I get 34oz, by volume, of bleach using both the app and the website

    Quote Originally Posted by Fugazi View Post
    Pool volume
    14k
    Ph from 7.4 to 7 Ta 110
    App says 46 oz
    Website says add 43oz
    I get 43oz, by volume, of 31.45%-20 Baume Muriatic Acid using both Pool Math Website AND the App


    Looks to me like your pool volume settings are different in the app and the website.
    20' X 40' IG vinyl lined; 31,300 gallons; built ~30years ago
    Hayward 1HP Single Speed Pump w/Sand Filter
    Taylor K-2006,Rola-chem sodium hypo feeder/ 15 gallon tank
    Fill from soft/neutral well water, low flowrate well pump

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    domct203's Avatar
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    Re: which is more accurate the poolmath website or the poolmath app?

    Quote Originally Posted by Fugazi View Post
    Pool volume
    14k
    Current chlo one 1
    Rise to 3
    Cya is 35
    App says add 37 oz
    Website says add 34oz

    Ph from 7.4 to 7 Ta 110
    App says 46 oz
    Website says add 43oz
    Are you using the PoolMath on this forum?

    When I do, I get the following to raise FC from 1ppm to 3ppm in a 14,000 gal pool:
    8.25% bleach = 41oz
    10% bleach = 36oz
    12.5% bleach = 29oz

    What strength bleach did you use to get 43oz?

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    Dom - TFP Guide
    Intex 18' X 48" Ultra Frame AGP 6700 gallons | Two Intex CS8110 SWG's | Hayward Pro Series 21" Sandfilter | Hayward 1.5HP Power Flo Matrix pump | Hayward Thru-wall Skimmer | Wanda the Whale | 72 sq ft of Sungrabber Solar Panels with Hayward GLC-2P-A | Taylor K2006 Test Kit, Sample Sizer & Speed Stir | Click Here To Become a TFP Supporter!

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    Re: which is more accurate the poolmath website or the poolmath app?

    I am using pool math from this website and the iOS app from TFP
    Fresh Warer pool15k gallons
    Pentair Clean and Clear RP filter
    Pentair 320 chlorine filter
    1-1.5 Hp pump//TF-100 test kit

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    Mod Squad Bama Rambler's Avatar
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    Re: which is more accurate the poolmath website or the poolmath app?

    If I enter 14000 gallons in either I get 34 oz of 10.5% bleach to raise the FC by 2 ppm.
    If I enter 15000 gallons in either I get 37 oz of 10.5% bleach to raise the FC by 2 ppm.

    I just did that because I saw that your sig lists your pool size as 15k and you entered 14k in Poolmath.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: which is more accurate the poolmath website or the poolmath app?

    Quote Originally Posted by Bama Rambler View Post
    If I enter 14000 gallons in either I get 34 oz of 10.5% bleach to raise the FC by 2 ppm.
    If I enter 15000 gallons in either I get 37 oz of 10.5% bleach to raise the FC by 2 ppm.

    I just did that because I saw that your sig lists your pool size as 15k and you entered 14k in Poolmath.
    Oops I forgot to change it on the website
    Doh

    Thanks
    Fresh Warer pool15k gallons
    Pentair Clean and Clear RP filter
    Pentair 320 chlorine filter
    1-1.5 Hp pump//TF-100 test kit

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    Re: which is more accurate the poolmath website or the poolmath app?

    Not clear why you would be targeting a pH of 7.0. Was that just for delta illustrative purposes?
    Blessings, Paul
    12K, StoneScapes Midnight Blue Mini Pebble w/abalone (July 2017 - executed bi-carb startup Refurb - Sachse, Tx), 3 shear descents on raised Austin stone beam, 2 sprayers, 2 skimmers, 4 returns, 2HP pump, STA-Rite S7M120 cartridge filter, 1.5HP Pump for Polaris 280, Circupool RJ 45+, TF-2006, K-1766, & SpeedStir.

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