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Thread: Here are my readings, what next?

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    Post Here are my readings, what next?

    New-to-me pool owner, came here and did the following: bought a K-2006 test kit, set up a spreadsheet, tested my water basically every other day for the last week.

    Here's where I'm at after a few days:
    FC pH CC TA CH CYA
    1.6 7.6 N/A 100 ~220 ~45-50
    11 (shock) 7.6 N/A (shock) 100
    3.0 (pool guy didn't come for a few days) 7.6 0 100 250/260 60
    10.4 (pool guy came again) 7.6 ~0 100 260

    So, with this info in hand, and with the PoolMath tool, I'm still not 100% sure what I should do next. The different goals on the tool have me wondering what I should tackle first, or if I'm good as is.

    The big fluctuations in FC are the result of two things. (1) some algae (I think) growing in the shallow beach access (gets the most direct sun) and on the top step. The water never clouded and nothing grew any where else deeper than about 10 inches. (2) The salt cell may be going bad, so it is shut off and the pool is being treated as a regular chlorine pool with trichlor (I think) tablets in the skimmer. I am not 100% sure when the pool guy added the trichlor, or exactly when they added additional chlorine for the shock, but I assume it's correlated with the large FC increases.

    I have not added any chemicals, but I am hoping to get to the point where I can manage this pool on my own with regular testing and a good understanding of how to triage issues.

    Any guidance? Thanks.
    The Internet
    ~24,000 gal IG shotcrete pebble, b: 2007
    Pentair: Clean & Clear Plus cart filter, WhisperFlo WFE-6 pump, minimax NT heater
    Taylor K2006 test kit
    Hayward Goldline SWG, TurboCell T15

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    Re: Here are my readings, what next?

    Where is Martinez? Does your SWG work?

    If there are tabs in the skimmer you should remove them immediately. They are very acidic and can damage your skimmer / equipment. You should add liquid bleach to keep your FC above the minimum level if you are sorting out SWG problems.

    edit: Nevermind I see your SWG is off. In that case treat it like a non-SWG pool and test and manually add bleach every day until you get the pool's appetite down. Your CYA is already very high for a non-SWG so I would stop all non-liquid chlorine now.
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Mod Squad Jimrahbe's Avatar
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    Re: Here are my readings, what next?

    Well,

    I believe that the first thing you need to do is decide if you, or your "pool guy" is going to be taking care of your pool. The main TFP principle is testing the pool water on a regular basis, just like you did above, but then taking whatever action is necessary to keep the chemicals in balance. You just can't do that with someone else in the picture.

    One main reason that you may have algae is you allowed the FC level to get so low. I see your first test shows an FC of 1.6 ppm when with a CYA of 50 your absolute lowest FC allowed would be 4 ppm.

    Thanks,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Calder Spa.

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    Re: Here are my readings, what next?

    Ditch the pool guy and we'll teach you how to manage your pool.

    Now that you know how to test, you should learn what the results mean and what you should do about them.

    read "The ABC's of Pool Water Chemistry" up in Pool School......that'll teach you what you are testing for, what's normal and how to get it to normal if it's not.

    What does your water look like?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Here are my readings, what next?

    Quote Originally Posted by duraleigh View Post
    Ditch the pool guy and we'll teach you how to manage your pool.

    Now that you know how to test, you should learn what the results mean and what you should do about them.

    read "The ABC's of Pool Water Chemistry" up in Pool School......that'll teach you what you are testing for, what's normal and how to get it to normal if it's not.

    What does your water look like?
    Water is crystal clear. And to the above, the algae issue started after the pool guy missed a week and, as you guessed, FC got really low. I'm in the Southeast, and the pool gets a lot of direct sun so I imagine algae loves it.

    I've been over the ABC's but I'm wondering, based on my tests, what issue I should treat first and in what order. I noticed folks saying to get rid of the tabs immediately. However I've also read that they are fine. Any guidance as to which advice is "best"? Thanks!
    The Internet
    ~24,000 gal IG shotcrete pebble, b: 2007
    Pentair: Clean & Clear Plus cart filter, WhisperFlo WFE-6 pump, minimax NT heater
    Taylor K2006 test kit
    Hayward Goldline SWG, TurboCell T15

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    Re: Here are my readings, what next?

    The tabs can be "fine" or awful....depending on your CYA. Your CYA (60 ppm) is high enough so pull the tabs. That should be first.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Here are my readings, what next?

    Tabs out it is. Thanks! I guess I will keep FC balanced with just bleach, then?
    The Internet
    ~24,000 gal IG shotcrete pebble, b: 2007
    Pentair: Clean & Clear Plus cart filter, WhisperFlo WFE-6 pump, minimax NT heater
    Taylor K2006 test kit
    Hayward Goldline SWG, TurboCell T15

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    Re: Here are my readings, what next?

    Yes. Or until you get your SWG fixed, if you decide to.

    Do understand this chart? Pool School - Chlorine / CYA Chart
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Re: Here are my readings, what next?

    More or less. Where I'm a little confused is in knowing whether there is a proper order to fix things. I want to avoid chasing my tail by correcting one thing that throws another thing out of whack, that throws another thing....etc.
    The Internet
    ~24,000 gal IG shotcrete pebble, b: 2007
    Pentair: Clean & Clear Plus cart filter, WhisperFlo WFE-6 pump, minimax NT heater
    Taylor K2006 test kit
    Hayward Goldline SWG, TurboCell T15

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    Re: Here are my readings, what next?

    FIrst step is keeping Chlorine/bleach in the water, so its is both safe to swim, and not developing any algae growth
    I would rank managing pH second, as that too affects swimmer comfort.
    CYA can be lower for non-swg pool, but that would mean draining it. Maybe with Hermine rain coming you will get some dilution and have to drain it off, that might help. High CYA = high chlorine level = more $$ spent.
    Phil
    ~9600 gal gunite pool, NEW July 2015; Pentair Intelliflo 2 VST pump; Pentair C&C 150 filter; Pentair Intelliclor IC40 swg; solar heat w/ Pentair Solartouch controller, screened. Taylor K 2005 test kit, FAS-DPD separate test, Taylor K1766 salt test

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    Mod Squad Jimrahbe's Avatar
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    Re: Here are my readings, what next?

    Looking at your latest number, the only thing I would concentrate on is keeping your FC above 4 or 5 ppm at all times. It does not matter if it is a little high at times, just don't let it get low.

    This assumes that you have removed the pucks...

    You "think" you have an algae outbreak, but your CC tests are zero which indicates maybe you don't have algae.

    I suggest you do the following test... Overnight FC Loss Test

    If, overnight, you lose less than 1 ppm of FC then that would indicate no algae.

    Please run the OCLT test and get back to us with your results. Remember, it has to start after sunset, and yes, I'm sorry you have to get up early, but you have to check again before sunrise.

    Thanks,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Calder Spa.

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    Cool Re: Here are my readings, what next?

    Quote Originally Posted by Jimrahbe View Post
    Looking at your latest number, the only thing I would concentrate on is keeping your FC above 4 or 5 ppm at all times. It does not matter if it is a little high at times, just don't let it get low.

    This assumes that you have removed the pucks...

    You "think" you have an algae outbreak, but your CC tests are zero which indicates maybe you don't have algae.

    I suggest you do the following test... Overnight FC Loss Test

    If, overnight, you lose less than 1 ppm of FC then that would indicate no algae.

    Please run the OCLT test and get back to us with your results. Remember, it has to start after sunset, and yes, I'm sorry you have to get up early, but you have to check again before sunrise.

    Thanks,

    Jim R.
    BEFORE SUNRISE!!! I'm selling the pool.

    Nah, not a problem. I wish I checked this more often or I could have done it last night. The pucks have definitely come out. We are currently experiencing some heavy rain on the tails of this tropical storm. I assume (though without any validation whatsoever) that this might affect the test...but I am probably wildly overestimating how much new water is getting into the pool.

    The rain should be over by tonight, so I will make it a point to do the test tonight and then first thing tomorrow morning.
    The Internet
    ~24,000 gal IG shotcrete pebble, b: 2007
    Pentair: Clean & Clear Plus cart filter, WhisperFlo WFE-6 pump, minimax NT heater
    Taylor K2006 test kit
    Hayward Goldline SWG, TurboCell T15

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    Re: Here are my readings, what next?

    Best of luck!

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