Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 2 12 LastLast
Results 1 to 20 of 23

Thread: CYA!!

  1. Back To Top    #1

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    CYA!!

    My cya was at 100. I drained 2/3 of the water out and filled. It was 60. Now ot at 90. Is rain causing this? I can't drain and fill it again. I will have a $500 water bill if I do. Any suggestions? If not I have a free 24 foot pool if someone will come and get it.
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  2. Back To Top    #2
    Butterfly's Avatar
    Join Date
    May 2007
    Location
    South Carolina
    Posts
    10,045

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Sounds like a testing error. Rain has absolutely no effect on CYA. The only way CYA enters a pool is if it is added.

    So, I say, take a deep breath and back away. Wait til tomorrow with the sunlight and do another test.
    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!

  3. Back To Top    #3

    Join Date
    May 2012
    Location
    Boyd, Texas
    Posts
    93

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    How are you adding chlorine to your pool? Pucks, bleach, powder? Also how much time was between the 60 test and the 90 test?
    6500 gal, Intex 18'x48" above ground, 1hp Pro Sand Filter, TF100 Test Kit

  4. Back To Top    #4

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    My CYA was WELL OVER 100-probably 200-I drained my IG 12"-filled,drained,fillled, drained filled-my resulting cya was around 90-I have been able to maintain a FC of around 10-11. My water is crystal clear, but I do check my levels ALL the time-just to make sure I don't get near the minimum level of 6. The past month or so I've had alot of evaporation due to drought-I've been filling off the well and my cya has gone down since my drain to about 70-so....to make a long story short, 90 cya is do-able, but you have to be vigilent about testing and keeping your numbers in line.
    Kris
    In ground 26,000 gal. 16x36 Avg depth-6'
    Vinyl
    sand filter used 24/7
    auto cover
    Elgin/Illinois

  5. Back To Top    #5

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Every evening I have been testing. Except for Thursday night. I hit the pool with powdered shock Wednesday night and then again on Thursday Morning before I left. I have been using 6% Bleach. 25 jugs in 3 weeks to be exact. Got back home Friday evening around 5 and the pool was as green as could be. The shock I got treated 17500 gal. I havent got the pool clear yet. Have barely seen the bottom once and that was maybe for just a couple of days. I quit backwashing so much thinking I am loosing filtering by doing so. I added DE to my sand filter today just to try that. I tested my water and here are my results. FC was 45 drops so that .90 i guess. CC was 2 drops to clear so that .04 I guess. PH is 8.0. ADT took 3 drop whwtever that means. TA is 90 as far as I can tell. I freakin color blind so I have to take my best guess as to when it turns red. and holding the vial at waist level the black dot went away at 90. I am using the Leslie K2006 FAS-DPD Test kit. I go to leslie to get R0870 DPD Powder and they have no idea what I am talking about. I said " It's in your kit". He calls someone and they discontinued that. They only use drops now. What's up with that? Where can I get the R0870 powder now? Just one thing after another.
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  6. Back To Top    #6

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Ok, first, just take a deep breath.... we are here and we all want to help you. You can order the R0870 DPD powder from TFtest kits at www.tftestkits.net. Take a look to see if you need any other chemicals at the same time, to save on shipping costs.

    As for the CYA going up.... what is this "shock powder" you are using? Dichlor adds CYA, Cal-hypo does not. Please read the entire label and tell us what you are using.

    I am confused by the drops to ppm values you are giving, it may be that I do not use that test kit. Someone else will have to jump in here for that part.

    When you saw the bottom of the pool, was it clear of debris? If there is stuff down there you need to scoop it out with a leaf rake. It takes and amazing amount of chlorine to turn leaves and sticks to liquid.
    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.

  7. Back To Top    #7
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    What kind of powder "shock" were you adding too the pool? If it was dichlor that was adding CYA ... only use liquid chlorine.

    Each drop in the chlorine test is 0.5 ... So 45 drops its a FC of 22.5

    You can get the powder from tftestkits.net ... it is not discontinued.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    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!

  8. Back To Top    #8

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Quote Originally Posted by jblizzle
    What kind of powder "shock" were you adding too the pool? If it was dichlor that was adding CYA ... only use liquid chlorine.

    Each drop in the chlorine test is 0.5 ... So 45 drops its a FC of 22.5

    You can get the powder from tftestkits.net ... it is not discontinued.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    My kit is 0.2 per drop if I fill the vial to 25 ml. I can also use the 0.5 ppm test if I fill the vial to 10ml, but I don't use that one. Sorry if I sound like I venting....I' am LOL...Now I am settled and will the water a good test in the morning and post the results. Thanks for all of the replies.
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  9. Back To Top    #9
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Ah. There really is no need to use the 25ml sample ... save your reagent since 0.5ppm is close enough.

    In your post you stated a FC of 0.9 ... in reality it is 9.0 with 45 drops and the larger water sample. And your CC was 0.4ppm. Just want to be sure you caught that.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    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!

  10. Back To Top    #10

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    This mornings results
    FC 64 PPM
    CC 4PPM
    PH 7.6
    TA100
    CYA 70. Test it in the daylight. Kitchen lighting didnt do to well.
    Water temp is 88

    Pool is as Green as can be. Any suggestions than to test this evening and keep chlorine level at 28 ppm or better.
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  11. Back To Top    #11
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: CYA!!

    Given the previous confusion, how many drops did you use in the chlorine tests? Your stated levels are very high ... unless you added a LOT of chlorine.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    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!

  12. Back To Top    #12

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    Re: CYA!!

    I just used the 10ml sample and used 7 drops which would be 35ppm....right?
    I used one drop to clear for the cc test which would be 5 ppm.
    After I did the drain and fill I did not add any algecide to the pool. Should I go but some and add it?
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  13. Back To Top    #13
    bobodaclown's Avatar
    Join Date
    Apr 2011
    Location
    Lakeland, FL
    Posts
    2,351

    Re: CYA!!

    Point 5 (0.5) so 7 drops is 3.5 PPM.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

  14. Back To Top    #14
    esim13's Avatar
    Join Date
    Oct 2009
    Location
    Denham Springs, Louisiana
    Posts
    320

    Re: CYA!!

    If you're using the 10ml line then you divide the number of drops by 2 (or .5). So 7 drops would be 3.5 not 35. CC would be .5 not 5. I like to think of both the FC and CC drops as being divided by 2. It makes it so much easier.
    10,408 gallon, 21' round, 52 in' deep AG, half in ground
    Artesian Clear Master Plus Sand Filter, Artesian Turbo King 2 hp pump, installed June 08
    Denham Springs, Louisiana
    GEAUX TIGERS!
    Pics taken 2012
    http://i941.photobucket.com/albums/ad25 ... CN0606.jpg
    http://i941.photobucket.com/albums/ad25 ... CN0607.jpg

  15. Back To Top    #15
    esim13's Avatar
    Join Date
    Oct 2009
    Location
    Denham Springs, Louisiana
    Posts
    320

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    I hit the pool with powdered shock Wednesday night and then again on Thursday Morning before I left. The shock I got treated 17500 gal.
    What is in the powdered shock? Whatever it is could have contributed to raising your CYA.

    Remember.. "shock" is not a product, it is a process. The process of maintaining your FC level (based on your CYA level) at shock levels. This corresponds to having a high enough FC to consistently kill anything growing in your pool. It is not a one time application of bleach or a "shock" product. Here is the chart to find your level... pool-school/chlorine_cya_chart_shock
    10,408 gallon, 21' round, 52 in' deep AG, half in ground
    Artesian Clear Master Plus Sand Filter, Artesian Turbo King 2 hp pump, installed June 08
    Denham Springs, Louisiana
    GEAUX TIGERS!
    Pics taken 2012
    http://i941.photobucket.com/albums/ad25 ... CN0606.jpg
    http://i941.photobucket.com/albums/ad25 ... CN0607.jpg

  16. Back To Top    #16
    jimmerz's Avatar
    Join Date
    Jun 2012
    Location
    Pittsburgh, PA
    Posts
    169

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Quote Originally Posted by anonapersona
    Ok, first, just take a deep breath.... we are here and we all want to help you. You can order the R0870 DPD powder from TFtest kits at http://www.tftestkits.net. Take a look to see if you need any other chemicals at the same time, to save on shipping costs.

    As for the CYA going up.... what is this "shock powder" you are using? Dichlor adds CYA, Cal-hypo does not. Please read the entire label and tell us what you are using.

    I am confused by the drops to ppm values you are giving, it may be that I do not use that test kit. Someone else will have to jump in here for that part.

    When you saw the bottom of the pool, was it clear of debris? If there is stuff down there you need to scoop it out with a leaf rake. It takes and amazing amount of chlorine to turn leaves and sticks to liquid.
    That had me LMAO! Good one.
    24' x 54" Oceanic Round AGP, 1090 Hayward Skimmer, EC-40 Filter system, Automatic Chlorinator. Pool will be in Full sun for most of the day (9am-6pm).

  17. Back To Top    #17

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    Re: CYA!!

    Quote Originally Posted by esim13
    If you're using the 10ml line then you divide the number of drops by 2 (or .5). So 7 drops would be 3.5 not 35. CC would be .5 not 5. I like to think of both the FC and CC drops as being divided by 2. It makes it so much easier.
    OK Makes sense now. I thought that sounded high. I will use the calculator to see what I need to add to shock. Thanks.

    What do you do when you are out of town and can't test the water? Pucks?
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  18. Back To Top    #18

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    Re: CYA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Quote Originally Posted by esim13
    I hit the pool with powdered shock Wednesday night and then again on Thursday Morning before I left. The shock I got treated 17500 gal.
    What is in the powdered shock? Whatever it is could have contributed to raising your CYA.

    Remember.. "shock" is not a product, it is a process. The process of maintaining your FC level (based on your CYA level) at shock levels. This corresponds to having a high enough FC to consistently kill anything growing in your pool. It is not a one time application of bleach or a "shock" product. Here is the chart to find your level... pool-school/chlorine_cya_chart_shock
    I wasn't in town so I did what I thought was best. I wasn't able to be here to test each day. I will be out of town probably 4 days this week. Maybe have my neighbor dump a large container in the pool each day for me or toss a few pucks in the skimmer?
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  19. Back To Top    #19

    Join Date
    May 2011
    Location
    Wilmington, N.C.
    Posts
    45

    Re: CYA!!

    Quote Originally Posted by esim13
    If you're using the 10ml line then you divide the number of drops by 2 (or .5). So 7 drops would be 3.5 not 35. CC would be .5 not 5. I like to think of both the FC and CC drops as being divided by 2. It makes it so much easier.
    So if I used the 10ml test and used 30 drops my FC would be 15....correct?
    Pool size- 24 ft Round. 13500 gal Above Ground. Filter- Sand 25 GPM, Pump- 1.5 HP/ 70 GPM.
    K2006 FAS-DPD Test Kit.

  20. Back To Top    #20
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: CYA!!

    You got it now.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    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!

Page 1 of 2 12 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
  •