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Thread: Help me please

  1. Back To Top    #1

    Help me please

    Hello,

    I've been a pool owner for about 2 years and have never had a problem with my water. I am assuming I am having an algae problem, but can't make any headway on fixing it. I have a test kit on order, so I am only testing with sticks currently. I have shocked once with 4 gallons of 10% chlorine along with 4 lbs of dichlor...FC still zero. Shocked again in the evening, no FC. Added a non-chlorine shock....still no FC. Added 4gallons and 4 lbs again...no FC. I have read pool school since doing all of that ( which my pool store owner advised), but I would think I would get some sort of reading on FC.

    Test strip #'s:

    FC 0
    PH 7ish...was higher before adding chemicals
    TA 140 ish
    CYA 0-20...lowest value on the strip

    Any thoughts? I am waiting for my test kit, but until then should I keep dumping in Liquid chlorine?
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

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    JasonLion's Avatar
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    Re: Help me please

    Welcome to TFP!

    With CYA very low you will lose chlorine very quickly any time the sun is shining on the pool.

    Did you measure CC? One possibility is that you have ammonia in the water, which would use up chlorine almost instantly. If that is happening the CC level would be fairly high.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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  3. Back To Top    #3

    Re: Help me please

    Last night at the pool store they said my TC was about 7. Am I wasting time and money by throwing the chlorine in....just threw more in with the sun not on the pool. Is there a solution to having ammonia in the water? I havn't done enough research on this site yet. Thanks for your help!
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  4. Back To Top    #4
    JasonLion's Avatar
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    Re: Help me please

    FC of 0 and TC of 7 means CC is 7, which is very suggestive of ammonia. You can always clean things up with enough chlorine. However, if your ammonia level is quite high it can be a really large amount of chlorine before things are back to normal. You have a fairly large pool, so I would stick it out with chlorine. One option would be to get an ammonia test kit (they sell them for aquariums) and measure your ammonia level. Another option would be to do an extreme chlorine demand test (see here).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  5. Back To Top    #5

    Re: Help me please

    Just checked again with my test strip and registered> 10 for FC.....Its hard to know what to do without a good test kit....would you suggest waiting til morning and testing again? Thanks.
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  6. Back To Top    #6

    Re: Help me please

    I tested with the strips this morning and FC was in the 3-5 range....I added 2 more gallons of 10% chlorine. It looked like the CYA color on the strip was into the 30-50 range...I'm figuring to stay away from the dichlor at this point? PH seemed a little low...maybe high 6's to 7. Any advice would be appreciated. Thanks!
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  7. Back To Top    #7

    Re: Help me please

    Got some numbers from the pool store:

    FC 7.87
    TC 9.14
    PH 7.6
    TA 140
    CYA 120
    CH 310

    The pool looks clear....my numbers are looking better.....but not sure how to proceed. Mr. pool store guy says to turn on my chlorinator (trichlor) and stop adding any more shock....he said to add some wipeout tomorrow. I know according to poolschool I should keep shocking til I pass the 3 steps. Could this blow up in my face if I stop shocking?
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

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    Mod Squad Bama Rambler's Avatar
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    Re: Help me please

    The difference between the FC and the TC says you still need to shock. It certainly will blow up in your face if you stop shocking. It is your pool and you're free to handle it anyway you see fit. You should make up your mind whether you're going to follw the pool store advice or ours. Trying to follow both is going to confuse you and waste both our time.

    With a 23,000 gallon pool I highly suggest you get yourself a good test kit and start taking control of your pool. You'll be much happier once you do that.
    Dave J. TFP Moderator
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  9. Back To Top    #9
    Mod Squad Bama Rambler's Avatar
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    Re: Help me please

    P. S. With the CYA at 120 (if we can believe that) you're not even close to shocking.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  10. Back To Top    #10

    Re: Help me please

    I agree with you totally. I ordered a test kit on Monday and it still hasnt arrived...so i'm basing most of my results off strips. The CYA looked a lot lower several days ago....but I added a lot of dichlor. My pool guy says he's not worried with the CYA til it approaches 200....Kinda makes my head spin! I then asked if it's OK for the kids to swim....he said no problem....what's your view on that? I have started draining some water if my CYA is really 120....don't know if the numbers can be trusted.
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  11. Back To Top    #11

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    Re: Help me please

    You should get your own test kit like the TF-100 or taylor k-2006. Pool store test results are usually unreliable and often wrong. Next you need to actually read pool school and then re read it while you are waiting on the appropiate test kit to arrive. Being if you really do have a CYA of 120 you need to drain at least 1/2 of your water. If you keep following the advice of the pool store and buying all the pool stores magic chemicals you will continue to run in circles. If you turn on that chloronator it will continue to add more CYA. Look here At this link pool-school/chlorine_cya_chart_shock there is not a shock value for a CYA of 120 listed. Shocking is not a one time addition of some bag of chemical, it is a process. You add chlorine( we suggest liquid chlorine or bleach) to bring your FC to shock level wait a little while maybe an hour and test again then add more Chlorine to bring your fc back to shock level. But first you will have to reduce the CyA levels in your water.
    17,000 gal, IG Gunite Diamond Brite plaster Kidneybean,w/7x11 tanning ledge& 3x5 swimout bench,244T 300lb Hayward Pro high rate sand filter(63 GPM) , Hayward 1Hp Super Pump w/3/4 hp booster pump, Polaris 280, Laars Lite 2 175k N/G Heater, Tf-100, Speed stir

  12. Back To Top    #12

    Re: Help me please

    I hear what your saying....and am praying my test kit arrives soon....in the meantime should I trust the numbers and start draining water? The pool looks better clarity wise than it ever has....how many gallons of chlorine should I add? Its hard to do this without knowing if my CYA level is accurate...and I have everyone around me saying..."you better listen to your pool guy" but my gut and brains tell me not to!
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  13. Back To Top    #13
    Smykowski's Avatar
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    Re: Help me please

    Step back and take a breath.

    The first thing you have to decide is whether to do it the pool store's way or do it our way. You cannot do both. Either you understand your water and put in what you know will work, or you blindly put in what the pool store tells you.

    Since you have a kit on order, it sounds like you want to do it our way. Here's your assignment:

    1. Go to Pool School. Eventually you need to read all of it, but start with an emphasis on ABCs of Pool Water Chemistry, Recommended Pool Chemicals, and How to Shock Your Pool. Shocking your pool will solve your problem if you do it correctly.

    2. Read a few of these threads. It will give you an idea of the process ahead, but it will also show you the success that comes at the end.

    turning-your-green-swamp-back-into-a-sparkling-oasis-t4147.html
    major-pool-chemistry-problem-t44008.html
    opened-pool-after-3-years-of-being-closed-t20330-20.html
    need-help-cannot-clear-cloudy-green-water-t11447-60.html
    And my personal favorite, more-proof-that-bbb-works-t45138.html

    3. Go back and read pool school again

    4. At this point you will have a foundation to begin to ask questions, so ask away. It will feel very overwhelming, but don't give up, and we will help you.

    BBB is not a magic bullet, and it will take a little bit of work to get your pool under control, but once you do, you will sail through the summer with sparkly water.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  14. Back To Top    #14

    Re: Help me please

    GOT MY KIT....Yay!

    FC 4
    CC .5
    PH 7.5
    CYA 100

    I have been draining some water to try to get the CYA down....I will do OCLT tonite. If I have added a fair amount of non-chlorine shock, could that give me the CC reading I am getting? I know if I continue shocking I need to add another 10 gallons of chlorine and keep the process going til I pass my 3 steps. What do you think?
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  15. Back To Top    #15
    Smykowski's Avatar
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    Re: Help me please

    So far so good. You are correct about CYA being too high. I had the same problem, got it down to about 70. Shocking is difficult, but doable.

    Can you run a complete test before you start the shock process? Just to make sure your TA and CH aren't some crazy number.

    I'm getting ~8 gallons of 6.0% bleach to get you to a shock level of 25. Remember, shocking the pool doesn't mean putting chlorine in once and walking away, it means reaching 25ppm and HOLDING it there until you pass all three criteria.

    I have no experience with non-chlorine shock, so I'll defer to others.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  16. Back To Top    #16
    JasonLion's Avatar
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    Re: Help me please

    Yes, non-chlorine shock will often read as CC. It goes away in anything from a few hours to a few days.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  17. Back To Top    #17

    Re: Help me please

    My other numbers are:

    TA 140
    CH 310

    Do I shock to 25 or 39?
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  18. Back To Top    #18
    JasonLion's Avatar
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    Re: Help me please

    Quote Originally Posted by Concho
    Do I shock to 25 or 39?
    Yes, somewhere in that range.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  19. Back To Top    #19

    Re: Help me please

    Another question for you....my kids want to swim all day....and I know my FC is low...but I would rather wait until this evening when they're out of the pool to start dumping chlorine in...should I be OK....or should I dump some in now and raise my levels a little bit. I am still draining and refilling as we speak to lower my CYA. Thanks.
    23,000 gallon gunite with waterfall, radiant heat, sta rite system 3 cartridge filter 450 sq. ft., 1 1/2 HP

  20. Back To Top    #20
    Mod Squad Bama Rambler's Avatar
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    Re: Help me please

    I would raise it some now. Take it to high normal and it'll be fine.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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