Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 3 123 LastLast
Results 1 to 20 of 49

Thread: Just getting started

  1. Back To Top    #1

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Just getting started

    Hi there.

    Pool - 42000 gallons
    Using a K 2600 test kit, results are:

    FC- 1.8
    CC - 0
    PH - 7.8
    TA - 100
    CH - 650
    CYA - 110

    I have been adding 3 gallons of bleach a day but cant get the FC any higher. Poolmath says we should add over 2000 oz of bleach and drain 50% of the pool water. My question is if I need to do both or is it an either or? Thanks for your help.

  2. Back To Top    #2

    Re: Just getting started

    You need to reduce the CYA first, then retest to find CYA again as it may not get to the anticipated value. Then add chlorine based on that to get to shock level if the pool is not clear or if it looks good then go to the upper level of your FC range. Monitor the pool closely to see if it is holding chlorine well.

    You may need to slam the pool. I suspect you might bout it is possible that it will be OK once you get CYA under control.

    No more tabs or dichlor shock for this pool.
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  3. Back To Top    #3
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: Just getting started

    Did you do the dilution test for the CYA?

    What is the CH of your fill water?

    Welcome to the forum
    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!

  4. Back To Top    #4

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Okay - much appreciate the responses. The dilution test for the CYA = 110
    The CH of the fill water is 200. We stopped using the dichlor last week and got rid of the tabs this weekend.

  5. Back To Top    #5
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: Just getting started

    Okay - much appreciate the responses. The dilution test for the CYA = 110
    The CH of the fill water is 200. We stopped using the dichlor last week and got rid of the tabs this weekend.
    Okay, good.


    Quote Originally Posted by anonapersona View Post
    You need to reduce the CYA first, then retest to find CYA again as it may not get to the anticipated value. Then add chlorine based on that to get to shock level if the pool is not clear or if it looks good then go to the upper level of your FC range. Monitor the pool closely to see if it is holding chlorine well.

    You may need to slam the pool. I suspect you might bout it is possible that it will be OK once you get CYA under control.

    No more tabs or dichlor shock for this pool.
    What anona said is the way to go ^^^^^

    Let us know when you get the CYA down and post a new set of test numbers.

    Also, we'd love to see a pic or two of your pool
    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!

  6. Back To Top    #6

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Taking about half of the pool water out as we speak. Will fill and post new new test numbers when completed. Thanks for your help. Be glad to post pictures but cant figure out how to get them to upload. I think they are too big. Will keep trying.
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  7. Back To Top    #7

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  8. Back To Top    #8
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: Just getting started

    That's a big pool! And it looks like there is plenty of decking to make lotsa folks happy
    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!

  9. Back To Top    #9

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Okay - Drained half of the pool and refilled, after 2 hours of running the test results are:

    FC - 0
    CYA - 55(standing outside with my back to the sun)
    PH - 7.8
    TA - 90
    CH - 460

    Recommendations? and thanks again for your help!!
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  10. Back To Top    #10
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Just getting started

    Quote Originally Posted by mbeck5 View Post
    Okay - Drained half of the pool and refilled, after 2 hours of running the test results are:

    FC - 0
    CYA - 55(standing outside with my back to the sun)
    PH - 7.8
    TA - 90
    CH - 460

    Recommendations? and thanks again for your help!!
    Get some bleach in there, target something like 9 or 10, let that mix half an hour, then adjust pH to maybe 7.4. Another half an hour and recheck pH, FC, CC, and TA. If you're holding FC above 9 and CC is staying down below .5, go swimming. If not, post results and await the instructions to SLAM...
    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!

  11. Back To Top    #11

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Richard - Had to leave this morning but added 6 gallons of bleach which according to poolmath should have brought FC up to 7.5. Just did the test and

    9:00 am 2:00 pm
    FC - 0 2.4
    CYA - 55(I do have some trouble with this test 60 then did the dilution test and showed 60 - 65
    PH - 7.8 7.8
    TA - 90 80 (at 8 drops of R -0009 solution turned blue, at 9 drops, turned clear
    CH - 460 500(did both tests with 25 and 10 ml)

    I have washing soda if the PH needs to go down. Thanks for your patience

    - - - Updated - - -

    Richard - Had to leave this morning but added 6 gallons of bleach which according to poolmath should have brought FC up to 7.5. Just did the test and

    9:00 am 2:00 pm
    FC - 0 2.4
    CYA - 55(I do have some trouble with this test 60 then did the dilution test and showed 60 - 65
    PH - 7.8 7.8
    TA - 90 80 (at 8 drops of R -0009 solution turned blue, at 9 drops, turned clear
    CH - 460 500(did both tests with 25 and 10 ml
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  12. Back To Top    #12

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    I messed up with the statement on washing soda, should have said I have Muriatic Acid. Sorry
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  13. Back To Top    #13
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Just getting started

    Quote Originally Posted by mbeck5 View Post
    I messed up with the statement on washing soda, should have said I have Muriatic Acid. Sorry
    Understood. Yes, whenever pH hits 7.8, lower it to 7.2.


    It looks like something is growing in there, so a SLAM is called for. You lost an awful lot of FC in 7 hours. Did you measure CC? Since the water is clear, it should go quickly. Adjust the pH with acid, give it half an hour to mix, and hit it! It's going to take a lot of bleach for a pool that size. Just follow those instructions exactly. Your target FC with 55 CYA is 22. Yes, really. That will kill off algae faster than it can reproduce.
    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!

  14. Back To Top    #14

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Yes, the CC was zero. Going to start the acid now. Thanks again, will post results tomorrow morning.
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  15. Back To Top    #15

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Well, I put 13 96oz bottles of bleach in the pool at 3:00. Just tested the water(8:00) and the FC is 7. Should have been 22 according to PoolMath. Asked my wife to do the CYA test with no explanation other than the dot and she came up with 55. Then asked her to do the dilution test and she came up with 60 so it doesnt appear to be the CYA level. What do you think? Will test again in the am.
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  16. Back To Top    #16

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Well, I put 13 96oz bottles of bleach in the pool at 3:00. Just tested the water(8:00) and the FC is 7. Should have been 22 according to PoolMath. Asked my wife to do the CYA test with no explanation other than the dot and she came up with 55. Then asked her to do the dilution test and she came up with 60 so I guess its not the CYA level. What do you think? Will test again in the am. CC was zero. The water is beautiful!!
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  17. Back To Top    #17

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Good morning!! Test results at 7:30 am

    FC - 7.2
    CC - 0
    PH - 7.4
    TA - 90
    CH - 500
    CYA - 70

    Did FC, PH and CYA twice with my wife to confirm the numbers. Independently, we agreed. Water is sparkling. Recommendations? CH that high damaging to the pool?
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  18. Back To Top    #18

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Also tested the tap water CH and its around 250
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

  19. Back To Top    #19
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Just getting started

    Quote Originally Posted by mbeck5 View Post
    Good morning!! Test results at 7:30 am

    FC - 7.2
    CC - 0
    PH - 7.4
    TA - 90
    CH - 500
    CYA - 70

    Did FC, PH and CYA twice with my wife to confirm the numbers. Independently, we agreed. Water is sparkling. Recommendations? CH that high damaging to the pool?
    At 7:30, the sun's already been hitting the water, so it wasn't an overnight loss test. The amount of chlorine your pool sucked up the day before is still alarming. I would keep it at SLAM one more day and try to do the overnight loss test precisely tomorrow morning. A couple extra jugs today could save a couple dozen over the weekend.

    500 CH by itself will not damage the pool. Combined with high pH and high TA, it can lead to scaling. Check my reply #8 in this thread.
    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!

  20. Back To Top    #20

    Join Date
    May 2014
    Location
    Dallas, Tx
    Posts
    72

    Re: Just getting started

    Thank you for the quick response. If I understand you correctly that would mean to add 10 jugs to reach the SLAM level of 28 per the chart. Is that correct?
    Mike

    Pool is inground 20' x 40' 42000 gallon, rectangular plaster about 60 years old, replastered 2 years ago. Pentair VS Intelliflo pump, Pentair 420 Clean & Clear Plus Cartridge filter. Using K-2006 test kit.

Page 1 of 3 123 LastLast

Posting Permissions

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