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Thread: OK to swim in pool with some green spots on liner on floor ?

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    OK to swim in pool with some green spots on liner on floor ?

    Just wondering. We went away for a few days and got a ton of rain and now the pool has 0 chlorine in it and some light green stains around the pool. I ran a vaccumm over it and they kinda go away and I added enough bleach to bring it up to 5 PPM.
    21' All Steel AGP with Resin caps, Heyward S244T Sand Filter, Heyward 1HP 2 speed pump

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    Mod Squad woodyp's Avatar
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    Re: OK to swim in pool with some green spots on liner on floor ?

    With 151 posts............ya' know we gotta see some test results! Why not do a SLAM and fix it?
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    Richard320's Avatar
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    Re: OK to swim in pool with some green spots on liner on floor ?

    People swim in lakes with lots of algae and no chlorine and live to tell about it.

    I'd get some bleach in there and then jump in. And while I was in there, I'd work over the spots with a brush. When everyone's done swimming for the day, I'd adjust the pH to 7.2 and then raise the FC level to shock level for the CYA and let it go to work on any residual algae while there's no sunlight stealing it. You need to SLAM, you might as well get started now.
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    Mod Squad pooldv's Avatar
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    Re: OK to swim in pool with some green spots on liner on floor ?

    We had algae spots a few weeks ago. Raised FC to just under shock level for a week and a half, brushed the algae spots several ti es per day, the pool once per day. We swam every day.
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    Re: OK to swim in pool with some green spots on liner on floor ?

    Quote Originally Posted by Richard320 View Post
    People swim in lakes with lots of algae and no chlorine and live to tell about it.

    I'd get some bleach in there and then jump in. And while I was in there, I'd work over the spots with a brush. When everyone's done swimming for the day, I'd adjust the pH to 7.2 and then raise the FC level to shock level for the CYA and let it go to work on any residual algae while there's no sunlight stealing it. You need to SLAM, you might as well get started now.
    Yep. Kids wanted to go swimming big time yesterday but I had them hold off. I raised the chlorine(via bleach) to about 5 ppm threw in some shock (this stuff Pool Time XtraBlue 6-in-1 Pool Shock (5-Pack)-12101PTM - The Home Depot ) which I believe is considered trichlor and that would have put the pool at about 17ppm, more than enough to shock it.
    I then let the filter run on high for 5 hours or so. It looks clearer already. It should be good to swim in tomorrow I would imagine. I am guessing the chlorine would be around 10 PPM at that point.
    I'm assuming you can swim in anything less than shock chlorine level.
    I rarely use the trichlor but I had a few packs laying around and I didn't have any more bleach. Thinking about it though, Im not sure what the downside of it is besides cost.
    21' All Steel AGP with Resin caps, Heyward S244T Sand Filter, Heyward 1HP 2 speed pump

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    Richard320's Avatar
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    Re: OK to swim in pool with some green spots on liner on floor ?

    The downside of trichlor is that it raises CYA. Which means it also raises the shock level to kill the algae. You're already in a hole. You should stop digging yourself in deeper.

    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!

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    Re: OK to swim in pool with some green spots on liner on floor ?

    OK I did shock the pool. Scrubbed it down. Waited a few days.
    I still see some greenish spots and the water is cloudy-ish. Im not sure if the greenish spots are algae or just plain dirt.
    Pool measurements today are as follows.
    TA 70
    FC 3
    PH about 8, but we all just swam an hour before. Tester kit was a light pink.
    CYA between 23-28 I would say.
    21' All Steel AGP with Resin caps, Heyward S244T Sand Filter, Heyward 1HP 2 speed pump

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    Re: OK to swim in pool with some green spots on liner on floor ?

    Which test kit are you using?
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    Mod Squad pooldv's Avatar
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    Re: OK to swim in pool with some green spots on liner on floor ?

    It is better to Pool School - SLAM - Shock Level And Maintain the pool rather than shock it one time.
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    Re: OK to swim in pool with some green spots on liner on floor ?

    I concur - it's time to do an old fashioned SLAM.


    Lisa P.
    26,000 IG, pebble tec, flagstone, pentair Triton II TR100 sand filter & VS+SVRS 3hp multi-speed pump, Intellichlor IC-40 SWG, Pentair Booster Cleaner, spillover spa, waterfall, Taylor K-2006 testkit
    [It is better to know how to learn, than to know. - Dr. Seuss[/I]

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    Re: OK to swim in pool with some green spots on liner on floor ?

    Quote Originally Posted by aasbury View Post
    Which test kit are you using?
    I have a test kit that can do the FAS DPD test. I have no combined chlorines.
    My pool is blue-ish, there is just some green-ish spots that when I brush them they turn to dust. I guess I have to wait for a string of not so burning hot days
    where the kids can put off going in the pool for a few days.
    21' All Steel AGP with Resin caps, Heyward S244T Sand Filter, Heyward 1HP 2 speed pump

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    Re: OK to swim in pool with some green spots on liner on floor ?

    If you bring your FC, just under SLAM level, you can still swim. You could ask member pooldv about it. If you SL is 18, bring it to 17. Then at night when kids aren't swimming, go to 20or even 22. I think you could work around it with the kids swimming and get them to help you brush when they are in the pool.


    Lisa P.
    26,000 IG, pebble tec, flagstone, pentair Triton II TR100 sand filter & VS+SVRS 3hp multi-speed pump, Intellichlor IC-40 SWG, Pentair Booster Cleaner, spillover spa, waterfall, Taylor K-2006 testkit
    [It is better to know how to learn, than to know. - Dr. Seuss[/I]

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