Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 5 1234 ... LastLast
Results 1 to 20 of 87

Thread: ALright - Im back with normal CYA

  1. Back To Top    #1

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    ALright - Im back with normal CYA

    Good Afternoon TFPers-

    I have now half drained and refilled the pool a second time, my CYA is at a normal 40, and it is time to SLAM. Here are my readings all are accurate although I am wondering if I did the CH test incorrectly.

    Here are my #'s:

    TC - 0
    TA - 300
    ph 7.5
    CH - 600
    CYA - 40 <-- YAY!!!!

    read with the TF-100

    I put in 448 ounces of 8.25% Bleach as that was all I had left and need to run to the store. My wife bought Kemtek Liquid Chlrinater at Target - is that okay to use? Any other suggestions as I start my SLAM would be greatly appreciated.

    Thank you!
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: ALright - Im back with normal CYA

    You might want to lower the pH a little bit before you raise the FC above 10ppm.

    The Kemtek is fine ... if it is not too old and it was stored inside. (check the Julian date on the box).
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  3. Back To Top    #3
    DaninFLA's Avatar
    Join Date
    Apr 2015
    Location
    Sarasota, FL
    Posts
    1,011

    Re: ALright - Im back with normal CYA

    don't worry about your CH numbers. its a little high but fine.

    congrats on getting your CYA down, that's the worst part and you should never have to do it again.

    you are going to need a lot of bleach. would start with at least 10 gallons with a pool of your size. 15 would be better.
    Dan
    9,000 gallon in-ground Saltwater pool, plaster, cartridge filer, 1.0 hp pump, Hayward T-15 SWCG, TF-100
    Pool School - Chlorine / CYA Chart; Pool School - Test Kits Compared;

  4. Back To Top    #4

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by DaninFLA View Post
    don't worry about your CH numbers. its a little high but fine.

    congrats on getting your CYA down, that's the worst part and you should never have to do it again.

    you are going to need a lot of bleach. would start with at least 10 gallons with a pool of your size. 15 would be better.
    Sounds like I need to go to Sams!

    - - - Updated - - -

    Quote Originally Posted by jblizzle View Post
    You might want to lower the pH a little bit before you raise the FC above 10ppm.

    The Kemtek is fine ... if it is not too old and it was stored inside. (check the Julian date on the box).
    How low would you suggest I take the ph and may I ask why?
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  5. Back To Top    #5
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: ALright - Im back with normal CYA

    The high Calcium could be right. Do you have hard water in your area? You'll know by the white crust on showerheads and drip coffeemakers. On the other hand, that test can be a pain if you have high CH. I know when I switched from manual stirring to using a speedstir my CH readings dropped about 200 ppm and it was the same water. When it hits the indigo stage, sometimes an extra minute of spinning will push it to blue. Swirling by hand, I'd guess 2 or 3 minutes would be the equivalent.
    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!

  6. Back To Top    #6
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: ALright - Im back with normal CYA

    Have you read the ShockLevelAndMAINTAIN Process? That tells you to lower the pH first (like to around 7.2).

    This is because when the FC > 10ppm you can not test the pH. And pH has a tendency to drift up, so starting with it low hopefully keeps it generally in range.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  7. Back To Top    #7

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by jblizzle View Post
    Have you read the ShockLevelAndMAINTAIN Process? That tells you to lower the pH first (like to around 7.2).

    This is because when the FC > 10ppm you can not test the pH. And pH has a tendency to drift up, so starting with it low hopefully keeps it generally in range.
    thx!
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  8. Back To Top    #8

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Just want to know if this is normal...started Slam two day ago - pool got COMPLETELY blue but still very cloudy. I brushed I vacuumed it stayed cloudy and turned back to green. I added chlorine to get back above shock level turns back blue - I brushed I vacuumed - turns back green - I repeated. This morning this morning it is green again - just want to make sure this is normal and I am not just waiting the Bleach.

    This mornings readings before I shock:
    FC 5.5 CC 6
    TA 220
    ph 7.8 although I realize this is inaccurate or should I add some acid just to be sure.
    CH - 600
    CYA - 40

    Thoughts?
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  9. Back To Top    #9
    lefty51's Avatar
    Join Date
    May 2015
    Location
    East of Royals country western MO
    Posts
    451

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by jordanlanderson View Post
    Just want to know if this is normal...started Slam two day ago - pool got COMPLETELY blue but still very cloudy. I brushed I vacuumed it stayed cloudy and turned back to green. I added chlorine to get back above shock level turns back blue - I brushed I vacuumed - turns back green - I repeated. This morning this morning it is green again - just want to make sure this is normal and I am not just waiting the Bleach.

    This mornings readings before I shock:
    FC 5.5 CC 6
    TA 220
    ph 7.8 although I realize this is inaccurate or should I add some acid just to be sure.
    CH - 600
    CYA - 40

    Thoughts?
    good morning, I thought I would jump in here till one of the pros can get back with you.

    Yes, if your fighting algae, those numbers are right, the high CC shows your chlorine is attacking something. As your pool clears that number will go down. If your FC is 5.5 than yes you can check PH, it's when FC is over 10 that PH test is inaccurate . Also you are using poolmath, correct ?

    Just looking at your pool size, I think your FC slam level should be around 16. put in your numbers and whatever that shock number is you need to keep it at that level thru out the slam. It means checking FC levels hourly at first and then less often when FC levels hold. The key is MAINTAINING the FC level so your not losing ground to the algae.
    Si -central Mo. 32' x 16' -- 3'4" to 6' deep Vinyl liner - 16,500 Gals : Triton II filter -Duraglass 2 hp pump - 1 speed : SI-30 salt generator
    TF-100 with speedstir

  10. Back To Top    #10

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by lefty51 View Post
    good morning, I thought I would jump in here till one of the pros can get back with you.

    Yes, if your fighting algae, those numbers are right, the high CC shows your chlorine is attacking something. As your pool clears that number will go down. If your FC is 5.5 than yes you can check PH, it's when FC is over 10 that PH test is inaccurate . Also you are using poolmath, correct ?

    Just looking at your pool size, I think your FC slam level should be around 16. put in your numbers and whatever that shock number is you need to keep it at that level thru out the slam. It means checking FC levels hourly at first and then less often when FC levels hold. The key is MAINTAINING the FC level so your not losing ground to the algae.
    Thank you - checking hourly was impossible since I was at work the last 2 days - but I will be checking hourly this week. I think you are right I was just losing ground to the algae. I was shocking to 16 per the pool math - the reading I gave this morning was the overnight loss. I will just continue to keep the SLAM going and trust that it will work.
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  11. Back To Top    #11
    lefty51's Avatar
    Join Date
    May 2015
    Location
    East of Royals country western MO
    Posts
    451

    Re: ALright - Im back with normal CYA

    Hang in there, I have had my pool for 16 years and just started here as you can see. Where we live we open to a swamp every year. We always shocked to clear, but trusted pool store testing over my own ( a big mistake).
    This site has answers to everything you need to know about the care and feeding of a pool. And on that rare case when something new comes up, these folks are on it like my dog with a bone.

    The best thing is, it gives you a precise course of action with "LIVE" help, (instead of guessing as I went along before). You may get discouraged as you go along, but please, keep the faith ! With my pool, the swamp cleared pretty quick, but the last few days of cloudy water took awhile to clear. I thought "oh, that looks good enough". But Azgirl71 urged me to keep SLAMing till I past the OCLT test, and she was right!

    And remember, they are always here, even if you need someone to hold your hand for a bit (or gently scold you, as in my case). Keep up the good work.........and the FC
    Si -central Mo. 32' x 16' -- 3'4" to 6' deep Vinyl liner - 16,500 Gals : Triton II filter -Duraglass 2 hp pump - 1 speed : SI-30 salt generator
    TF-100 with speedstir

  12. Back To Top    #12

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by lefty51 View Post
    Hang in there, I have had my pool for 16 years and just started here as you can see. Where we live we open to a swamp every year. We always shocked to clear, but trusted pool store testing over my own ( a big mistake).
    This site has answers to everything you need to know about the care and feeding of a pool. And on that rare case when something new comes up, these folks are on it like my dog with a bone.

    The best thing is, it gives you a precise course of action with "LIVE" help, (instead of guessing as I went along before). You may get discouraged as you go along, but please, keep the faith ! With my pool, the swamp cleared pretty quick, but the last few days of cloudy water took awhile to clear. I thought "oh, that looks good enough". But Azgirl71 urged me to keep SLAMing till I past the OCLT test, and she was right!

    And remember, they are always here, even if you need someone to hold your hand for a bit (or gently scold you, as in my case). Keep up the good work.........and the FC
    Thank you - sadly I needed the encouragement this is way more time intensive than I wanted it to be.

    After this mornings reading - I checked pool math and added 4 gallons of Cloroz to get me to 16 FC - it actually is reading higher - last 2 hours my FC has been 22 and then 21. I have a timer set and will just keep the FC above 16. The only different thing I am doing from SLAM is that I have my Blue Diamond robot in the pool right now since it is raining and id rather not be out there brushing/vacuuming in the rain. Honestly I think the blue diamond is keeping my water green cuz it is constantly agitating up all the algae etc and not letting it settle. That make sense or should I take out my Robot?
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  13. Back To Top    #13
    lefty51's Avatar
    Join Date
    May 2015
    Location
    East of Royals country western MO
    Posts
    451

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by jordanlanderson View Post
    Thank you - sadly I needed the encouragement this is way more time intensive than I wanted it to be.

    After this mornings reading - I checked pool math and added 4 gallons of Cloroz to get me to 16 FC - it actually is reading higher - last 2 hours my FC has been 22 and then 21. I have a timer set and will just keep the FC above 16. The only different thing I am doing from SLAM is that I have my Blue Diamond robot in the pool right now since it is raining and id rather not be out there brushing/vacuuming in the rain. Honestly I think the blue diamond is keeping my water green cuz it is constantly agitating up all the algae etc and not letting it settle. That make sense or should I take out my Robot?
    It's okay to overshoot FC a little as it will drop pretty quick when first starting the slam. That will give you some leeway between checks so it doesn't drop too far. As to how far to go above, I'll let someone answer that (don't go above mustard shock levels for sure)
    As far as the robot, I'm not sure about leaving it in (someone will know for sure). Just remember to watch pressure gauge levels and backwash filter when it reads 20 % higher than normal level.
    And yes stirring up the pool will make it green and cloudy again, If it quits raining, the more you can scoop up and remove by hand, the quicker the slam will go. Keep up the good work
    Si -central Mo. 32' x 16' -- 3'4" to 6' deep Vinyl liner - 16,500 Gals : Triton II filter -Duraglass 2 hp pump - 1 speed : SI-30 salt generator
    TF-100 with speedstir

  14. Back To Top    #14

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by lefty51 View Post
    It's okay to overshoot FC a little as it will drop pretty quick when first starting the slam. That will give you some leeway between checks so it doesn't drop too far. As to how far to go above, I'll let someone answer that (don't go above mustard shock levels for sure)
    As far as the robot, I'm not sure about leaving it in (someone will know for sure). Just remember to watch pressure gauge levels and backwash filter when it reads 20 % higher than normal level.
    And yes stirring up the pool will make it green and cloudy again, If it quits raining, the more you can scoop up and remove by hand, the quicker the slam will go. Keep up the good work
    2 things:
    1. I have a Sand Filter that runs at a normal 18 psi - does that mean I should backwash at roughly 22 psi?

    2. What do you mean scoop up and remove by hand?
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  15. Back To Top    #15
    lefty51's Avatar
    Join Date
    May 2015
    Location
    East of Royals country western MO
    Posts
    451

    Re: ALright - Im back with normal CYA

    Yes that sounds about right.

    Sorry, I reread your first post. What I meant by scoop is if you had debris in your pool like leaves and such. The more debris you remove the less the bleach has to remove. The brushing is for getting the sides and places the robot can't reach. Algae can hide in places and brushing helps to break the search of the algae so the chlorine can attack it.

    It will seem pretty labor entensive at the start, but it will get easier and once your pool is clean and clear, you can maintain it with a drink in one hand...... Tho,... I am not suggesting that.... of course !
    Si -central Mo. 32' x 16' -- 3'4" to 6' deep Vinyl liner - 16,500 Gals : Triton II filter -Duraglass 2 hp pump - 1 speed : SI-30 salt generator
    TF-100 with speedstir

  16. Back To Top    #16

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by lefty51 View Post
    Yes that sounds about right.

    Sorry, I reread your first post. What I meant by scoop is if you had debris in your pool like leaves and such. The more debris you remove the less the bleach has to remove. The brushing is for getting the sides and places the robot can't reach. Algae can hide in places and brushing helps to break the search of the algae so the chlorine can attack it.

    It will seem pretty labor entensive at the start, but it will get easier and once your pool is clean and clear, you can maintain it with a drink in one hand...... Tho,... I am not suggesting that.... of course !
    Okay thanks for clarifying - Thank you!

    Right now I just want to be able to see further than 6 inches deep in the pool. Ugh!
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  17. Back To Top    #17
    lefty51's Avatar
    Join Date
    May 2015
    Location
    East of Royals country western MO
    Posts
    451

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by jordanlanderson View Post
    Okay thanks for clarifying - Thank you!

    Right now I just want to be able to see further than 6 inches deep in the pool. Ugh!
    The pole on your brush is a good indicator of it getting clearer. If you see more of the pole or more of your ladder you know your getting somewhere ! I'll tell you what helped me a lot while waiting around, I looked around at other slam posts and picked up a lot of good pointers and encouragement. Plus I kept returning to pool school, to see if I was retaining any knowledge ! At my age ,you never know !
    Si -central Mo. 32' x 16' -- 3'4" to 6' deep Vinyl liner - 16,500 Gals : Triton II filter -Duraglass 2 hp pump - 1 speed : SI-30 salt generator
    TF-100 with speedstir

  18. Back To Top    #18

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    That backwash helped immensely - dropped my psi from 22 to 17 - dirty Sand Filter was definitely contributing to the green. I expect to see some improvement. Just curious on average how many times will someone need to backwash during a SLAM? My filter says only to backwash when it reaches 30 psi - that is why I hadnt backwashed once since I started the slam.
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  19. Back To Top    #19

    Join Date
    Dec 2014
    Location
    Edmond, OK
    Posts
    82

    Re: ALright - Im back with normal CYA

    Another hour another reading - FC now at 19. Leaving the robot in for now.
    30,000 gallons, in-ground plaster, well water, Hayward tri-star pump, Pentair Sand Dollar SD80 filter. TF-100 kit

  20. Back To Top    #20
    lefty51's Avatar
    Join Date
    May 2015
    Location
    East of Royals country western MO
    Posts
    451

    Re: ALright - Im back with normal CYA

    Quote Originally Posted by jordanlanderson View Post
    That backwash helped immensely - dropped my psi from 22 to 17 - dirty Sand Filter was definitely contributing to the green. I expect to see some improvement. Just curious on average how many times will someone need to backwash during a SLAM? My filter says only to backwash when it reaches 30 psi - that is why I hadnt backwashed once since I started the slam.
    That's hard to say, depends on how much is in the pool. It's kinda like the FC slam levels. At first you'll seem to be doing it a lot, but as it clears you'll be doing it less and less. That's why they say to do it at 20% above normal as it clears out the bad stuff and allows your pump and filter not to have to work as hard. If you look around the site, you will see it mentioned about adding some DE to the filter to help catch the smaller stuff quicker, but I have no experience with that so I leave that one to the pros. By the way........they are watching our conversations
    Si -central Mo. 32' x 16' -- 3'4" to 6' deep Vinyl liner - 16,500 Gals : Triton II filter -Duraglass 2 hp pump - 1 speed : SI-30 salt generator
    TF-100 with speedstir

Page 1 of 5 1234 ... 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
  •