Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 14 of 14

Thread: How much MA to add at a time

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Ellensburg,WA
    Posts
    13

    How much MA to add at a time

    Pool math is telling me to add 5.1 gal of MA. I'm not opposed to that figure, I'm just worried about adding that much all at once. I'm also concerned about adding the MA and the chlorine at the same time. Seems I read (here I think) that I should wait a period of time between adding the MA and the chlorine. Here are my numbers (target values based on Pool Math calculations): Pool Math is also telling me to replace 11% (3K gal) of the water. I'm thinking that I should replace the water first, then retest. Any suggestions? thanks



    NOW - Target
    FC 2 - 4

    pH 10 - 7.5

    TA 230 - 100

    CH 270 - 300

    CYA 45 - 40
    David
    28k gal, IG plaster, 1HP Pentair Superflow, Pentair Tagelus TA60 sand filter, solar blanket, Taylor K-2006 test kit, well water, 1992 build, 10 hrs of full sun

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    20,302

    Re: How much MA to add at a time

    Where did you get pH of 10? I'm unaware of any tester that reads that high.

    What does the acid demand test in your K-2006 say? That will give you a good doublecheck.
    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!

  3. Back To Top    #3

    Join Date
    Jun 2016
    Location
    Ellensburg,WA
    Posts
    13

    Re: How much MA to add at a time

    I had to guess at ten as the color was off the chart. My demand test said to multiply by ten, the number of drops it takes to get to the correct color and that was 23
    David
    28k gal, IG plaster, 1HP Pentair Superflow, Pentair Tagelus TA60 sand filter, solar blanket, Taylor K-2006 test kit, well water, 1992 build, 10 hrs of full sun

  4. Back To Top    #4


    TFP Guide
    ajw22's Avatar
    Join Date
    Jul 2013
    Location
    Northern NJ
    Posts
    1,893

    Re: How much MA to add at a time

    Set PoolMath PH to 8 and target to 7.2. Add that amount of MA. Test PH again. Repeat as necessary. Keep NOW at 8 until you get a good PH reading.

    Adding the MA will lower your TA.
    -Allen
    IG 20x50 35,000 gal Cayman Lagoon Hydrazoo plaster w/ spa & waterfall, Pentair Intellichlor SWG, Pentair Mastertemp 400BTU Nat Gas Heater, Pentair FNS Plus 60 DE Filter, Polaris 380 cleaner, Meyco solid winter cover, TF100 Test Kit, Built in 2000 & replastered in 2017

  5. Back To Top    #5

    Join Date
    Jun 2016
    Location
    Ellensburg,WA
    Posts
    13

    Re: How much MA to add at a time

    Great, thanks. I'll retest everything after I get a good pH

    db
    David
    28k gal, IG plaster, 1HP Pentair Superflow, Pentair Tagelus TA60 sand filter, solar blanket, Taylor K-2006 test kit, well water, 1992 build, 10 hrs of full sun

  6. Back To Top    #6
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    20,302

    Re: How much MA to add at a time

    Quote Originally Posted by db100 View Post
    I had to guess at ten as the color was off the chart. My demand test said to multiply by ten, the number of drops it takes to get to the correct color and that was 23
    23 drops would come to over 4 gallons but that still seems extreme.

    I would limit things to 1/2 gallon at a time with the pump running and a little brushing to set up some cross-currents. Retest every half hour until the color shows up on the test block.

    Just to be sure.... you haven't recently replaced test reagents have you? Because Taylor has two different pH indicators and they're not interchangeable.
    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!

  7. Back To Top    #7

    Join Date
    Jun 2016
    Location
    Ellensburg,WA
    Posts
    13

    Re: How much MA to add at a time

    thanks for the info. I just replaced the whole Taylor kit with a brand new one, so all the regents are from one batch (I hope)
    David
    28k gal, IG plaster, 1HP Pentair Superflow, Pentair Tagelus TA60 sand filter, solar blanket, Taylor K-2006 test kit, well water, 1992 build, 10 hrs of full sun

  8. Back To Top    #8

    Join Date
    Jun 2016
    Location
    Ellensburg,WA
    Posts
    13

    Re: How much MA to add at a time

    I ended up adding 2 gal. of MA and my pH is now 7.2 Free Chlorine is at 0. So, I think I'll add the 2 gal of bleach and then retest the pH before I add the soda pool math suggested. thanks again for the good advice!!
    David
    28k gal, IG plaster, 1HP Pentair Superflow, Pentair Tagelus TA60 sand filter, solar blanket, Taylor K-2006 test kit, well water, 1992 build, 10 hrs of full sun

  9. Back To Top    #9
    Mod Squad mknauss's Avatar
    Join Date
    May 2014
    Location
    Laughlin, NV
    Posts
    10,948

    Re: How much MA to add at a time

    Soda?? No need for any soda ash. You have your pH were you want it, why mess with it and your TA???
    6000 Gallon IG Fiberglass with integrated Spa;Pentair CCP240 Cartridge Filter with Pentair Intelliflo VS Pump and HTR250 heater. IC40 SWG. EasyTouch 4. Dolphin Active20 Robot "Roadrunner", TF 100 Test Kit w/SpeedStir!
    CLICK HERE to Become a TroubleFreePool.com Supporter!! Pool Math App
    Marty

  10. Back To Top    #10

    Join Date
    Jun 2016
    Location
    Ellensburg,WA
    Posts
    13

    Re: How much MA to add at a time

    Ignorance speaking here, the soda is what pool math tells me to do, but I wondered about the TA and soda as well, so I thought I had better retest before I added anything else. I guess experience will help as i could go round and round with the testing and never get to where I need to be. I realize that the pool chemistry is not a hard science, it's just challenging sometimes to know what to do and what to leave well enough alone. Thanks for the info, and I won't add anything until I retest. I hope I get to the point when I can relax about when to stop micromanaging the chems.
    David
    28k gal, IG plaster, 1HP Pentair Superflow, Pentair Tagelus TA60 sand filter, solar blanket, Taylor K-2006 test kit, well water, 1992 build, 10 hrs of full sun

  11. Back To Top    #11
    Mod Squad mknauss's Avatar
    Join Date
    May 2014
    Location
    Laughlin, NV
    Posts
    10,948

    Re: How much MA to add at a time

    The GOAL levels in POOLMATH are the mid point of a range. If your pH is 7.2, then that is in the range of 7.2 and 7.8. No action needed.

    TA should be left alone unless your pH becomes unstable (normally below 50 ppm TA) or is so high it drives your pH up very fast.

    Pool School - Recommended Levels This link show the ranges based on your pool surface type.
    6000 Gallon IG Fiberglass with integrated Spa;Pentair CCP240 Cartridge Filter with Pentair Intelliflo VS Pump and HTR250 heater. IC40 SWG. EasyTouch 4. Dolphin Active20 Robot "Roadrunner", TF 100 Test Kit w/SpeedStir!
    CLICK HERE to Become a TroubleFreePool.com Supporter!! Pool Math App
    Marty

  12. Back To Top    #12
    MannyT's Avatar
    Join Date
    Jun 2017
    Location
    Pembroke Pines, Florida
    Posts
    211

    Re: How much MA to add at a time

    If your test is within the specified range you shouldn't need to change it. Pool math will tell you what you need to get to the desired target that was saved but if you are within the range you necessarily don't need to change unless you are trying to reach a certain CSI.

    For example my ph was 7.8 within range but my CSI was .1 and I like my CSI slightly negative I brought it down to 7.6 to get to CSI -1.2 all my other results stayed the same since they were in range but not exactly at my targets.
    Built 2004 In-ground/12,636 gallons, Gunite Diamond Brite,Hayward Swimpure Plus SWG, Hayward SwimClear C200S, Pentair IntelliFlo VS pump, Taylor k-2006 & k1766 Salt test kit w/Speed Stir, Maytronics Active 30i (Poseidon) robotic pool cleaner, Fiberstars Lifetime Illuminator 6000 fiber optic light.

  13. Back To Top    #13


    TFP Guide
    ajw22's Avatar
    Join Date
    Jul 2013
    Location
    Northern NJ
    Posts
    1,893

    Re: How much MA to add at a time

    Quote Originally Posted by db100 View Post
    Ignorance speaking here, the soda is what pool math tells me to do, but I wondered about the TA and soda as well, so I thought I had better retest before I added anything else. I guess experience will help as i could go round and round with the testing and never get to where I need to be. I realize that the pool chemistry is not a hard science, it's just challenging sometimes to know what to do and what to leave well enough alone. Thanks for the info, and I won't add anything until I retest. I hope I get to the point when I can relax about when to stop micromanaging the chems.
    All the chemical tests do not have equal importance.

    FC is the most important and can change in hours or days. PH is equally important. those two you need to focus on.

    TA is tied to PH and is secondary. You only have to deal with TA if your PH is not stable and rises quickly. And best way to take TA down is doing it as you take PH down with MA, aerate to raise PH, and repeat until you get a good PH/TA balance.

    Get your FC, CYA, and PH in balance and stable. Then you can move onto your TA and CH if needed.
    -Allen
    IG 20x50 35,000 gal Cayman Lagoon Hydrazoo plaster w/ spa & waterfall, Pentair Intellichlor SWG, Pentair Mastertemp 400BTU Nat Gas Heater, Pentair FNS Plus 60 DE Filter, Polaris 380 cleaner, Meyco solid winter cover, TF100 Test Kit, Built in 2000 & replastered in 2017

  14. Back To Top    #14

    Join Date
    Jun 2016
    Location
    Ellensburg,WA
    Posts
    13

    Re: How much MA to add at a time

    Thanks everyone for the advice, and the link. I forgot to look there :/
    David
    28k gal, IG plaster, 1HP Pentair Superflow, Pentair Tagelus TA60 sand filter, solar blanket, Taylor K-2006 test kit, well water, 1992 build, 10 hrs of full sun

Posting Permissions

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