Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: Taylor K2006 acid demand vs PoolMath. Your opinion

  1. Back To Top    #1

    Join Date
    Aug 2015
    Location
    Montreal, Quebec, Canada
    Posts
    36

    Taylor K2006 acid demand vs PoolMath. Your opinion

    Hi all,
    I just received my Taylor K2006.
    I was playing around with the acid demand test and was wondering what everyone uses in order to lower their pH since the quantities in PoolMath vary from what is suggested from the Taylor kit

    My results:
    FC 14
    pH 8.0, acid demand test 3 drops
    TA 100
    CYA 70
    Calcium Hardness 340

    PoolMath suggests 636g of dry acid to lower the pH to 7.5,
    while the Taylor K2006 table suggests 1222g of dry acid.
    Double the difference?

    What are your opinions?
    44000L oval above ground vinyl pool ---Taylor K-2006----
    Jacuzzi Saniclear 20 salt generator, Waterco XLRU50btu Heat Pump
    Jacuzzi L192 19" sand filter, Jacuzzi 1.5hp pump
    Pool School + Test Kits + PoolMath = Happy Times
    If in doubt SLAM - Shock Level And Maintain + Perform the Overnight FC Loss Test (OCLT)

  2. Back To Top    #2

    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    Location
    NW Ohio
    Posts
    2,634

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    I would tend to trust PoolMath, mostly because I don't have a kit with an acid demand test I do know that it figures in TA in the calculations, but I don't know if TA affects the acid demand test.

    One good way to test this is to add what PoolMath suggests and test again in an hour or two. If you are at 7.5 then you know to trust PoolMath. If you aren't then you can add the remaining dry acid and rely on the acid demand test. Would like to hear the results on that myself.
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

  3. Back To Top    #3
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    Your pH test results are going to be wrong because the FC is above 10. I'd wait until FC goes below 10, remeasure pH and TA and do the acid demand test, and see how they compare then.
    Accurate pH test during shock levels with R-007? has pictures that show the color shift with high FC levels.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  4. Back To Top    #4

    Join Date
    Aug 2015
    Location
    Montreal, Quebec, Canada
    Posts
    36

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    I had the water tested electeonically at my pool store. The results are almost identical to what I got with the Taylor Kit. Can the high FC affect electronic testing of pH as well?
    44000L oval above ground vinyl pool ---Taylor K-2006----
    Jacuzzi Saniclear 20 salt generator, Waterco XLRU50btu Heat Pump
    Jacuzzi L192 19" sand filter, Jacuzzi 1.5hp pump
    Pool School + Test Kits + PoolMath = Happy Times
    If in doubt SLAM - Shock Level And Maintain + Perform the Overnight FC Loss Test (OCLT)

  5. Back To Top    #5

    TFP Guide

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

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    yes. it effects the electronic tests too. Plus it was at the pool $tore so is suspect on it's face.

    Pool math takes into account all the numbers you have in all the lines. The little book it the Taylor kit doesn't do that.
    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

  6. Back To Top    #6
    JoyfulNoise's Avatar
    Join Date
    May 2015
    Location
    Tucson, AZ
    Posts
    11,580

    Taylor K2006 acid demand vs PoolMath. Your opinion

    Quote Originally Posted by Donldson View Post
    I would tend to trust PoolMath, mostly because I don't have a kit with an acid demand test I do know that it figures in TA in the calculations, but I don't know if TA affects the acid demand test.

    One good way to test this is to add what PoolMath suggests and test again in an hour or two. If you are at 7.5 then you know to trust PoolMath. If you aren't then you can add the remaining dry acid and rely on the acid demand test. Would like to hear the results on that myself.
    The short answer is - yes the acid demand does take TA into account by virtue of the test itself.

    All the AD test does is use a known concentration of HCl to add drop wise to your pH test. You count the number of drops needed to reach a color in the tube that is pH of 7.4 (sometimes 7.2). You then lookup your pool volume on a chart and then look across to the drop count (it's a matrix chart) and it tells you how much acid to add. Since the sample water contains your TA (and any borates that might buffer the pH change), then that's all wrapped up in the test.

    Richard320 hits the nail on the head though, you have to have an accurate pH color read in order for the AD test to work.

    I prefer to use PoolMath myself and I use the Acid/Base demand reagents to shift the pH colors during a pH test so that I'm sure I'm seeing the right color.


    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

  7. Back To Top    #7

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

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    PoolMath approximates the pH acid/base calculations. The accurate amount is 695 grams of dry acid, but I suspect that your pH is actually higher than 8.0. If it were around 8.47 then that would require 1230 grams of dry acid to get to 7.5. This assumes no borates in the pool.
    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"

  8. Back To Top    #8

    Join Date
    Aug 2015
    Location
    Montreal, Quebec, Canada
    Posts
    36

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    Did the test by adding dry acid, a little bit less than what was suggested by the acid demand test. The pH is almost perfect. Will retry the experiment next time with ab FC in normal range. Ill let you know how it goes.
    44000L oval above ground vinyl pool ---Taylor K-2006----
    Jacuzzi Saniclear 20 salt generator, Waterco XLRU50btu Heat Pump
    Jacuzzi L192 19" sand filter, Jacuzzi 1.5hp pump
    Pool School + Test Kits + PoolMath = Happy Times
    If in doubt SLAM - Shock Level And Maintain + Perform the Overnight FC Loss Test (OCLT)

  9. Back To Top    #9

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

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    Actually, it's not the FC that was the issue but the pH was probably higher than you could register in your pH test. It was 8.0+ and based on your results was probably around 8.5 in pH to start out.
    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"

  10. Back To Top    #10

    TFP Guide


    Join Date
    Jul 2015
    Location
    Kentucky
    Posts
    1,123

    Re: Taylor K2006 acid demand vs PoolMath. Your opinion

    Also as Richard mentioned above in comment #3 "Your pH test results are going to be wrong because the FC is above 10."

    It will be difficult to adequately adjust the pH with your FC at 14ppm because you won't know if the pH itself is high, or the reading is just high because of the high FC level, or both. That why we recommend adjusting it before increasing the FC above 10ppm, and then not checking it again until after the FC level is again below 10ppm because the level registering may very well be incorrect. So if you do want to continue to attempt to adjust pH with the high FC level please be aware of this, and attempt to compensate for the possible inaccurate readings as to not over shoot your mark.

    I hope this helps and have a wonderful day.

    EDIT: There is an excellent explanation in Comment #2 by Jason Lion of what happens with the pH reading when the FC levels are above 10. http://www.troublefreepool.com/threa...high-FC-levels
    Last edited by Crackerjack4u; 09-03-2015 at 11:53 AM. Reason: Added Link
    24' Round x 4.5 ft deep AGP (15,200 Gallons), Vinyl Liner, Hayward Vari Flo XL Sand Filter- (model SP0714T1),
    TFTestkits , PoolMath , Pool School, RECOMMENDED LEVELS, SLAM & the Chlorine/CYA CHART. Support this Site! TFP Totally Rocks.

Posting Permissions

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