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Thread: My brother just dumped 56 Gallons of...

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    My brother just dumped 56 Gallons of...

    12% liquid chlorine in his pool at one time...is this ok? He has an inground gunite 35000 gallons. I took my tf100 over there yesterday and his CYA was at 100....FC was 0
    His water is cloudy and this is why the pool store told him to dump 56 gallons in at one time....I mean, I have probably used close to that amount trying to get rid of Algae but not at on once...maybe over 2 weeks! The pool guy told him everything would be good by Tuesday... Talk about shocking your pool! Lol!!!! He is in the country and claims that he can not drain and fill his pool, if only 18 inches at a time bc his well water will stain the pool? So he plans on keeping his high CYA. Whatever.....I also saw some dark green stuff in the filter hole and he told me it was rust... Green rust?
    Jill

    28k gallon IG Vinyl Pool, 1hp Hayward 200 with Zeobrite in it, Full sun, no bottom drain, heater

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    aa62579's Avatar
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    Re: My brother just dumped 56 Gallons of...

    OMG. Wouldn't that have added around 200 ppm FC?
    ~~ Allison ~~
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    Mod Squad jblizzle's Avatar
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    Re: My brother just dumped 56 Gallons of...

    Yeah that was probably not a good idea ... and was certainly not cheap. Hope it did not damage the pool or the equipment.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
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    Swampwoman's Avatar
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    Re: My brother just dumped 56 Gallons of...

    He *could* truck in enough water to change half his water using a large plastic sheet and a submersible pump below to do a partial. Or he *could* pre filter his well water using a hose filter. Is he maintaining his FC levels to account for such high cya?

    For the record, it took me 58 gallons of 6 percent over 12 days (but cool weather) to clear a completely black foreclosure swamp.

    If he has well water, and uses that much chlorine all at the same time, I wouldn't be surprised if any sequestered iron comes out of solution and stains his pool. Let us know how it goes. I always wanted to know jst how high you can go when shocking
    In ground extended Grecian, 22,000 gal, Hayward 220t sand filter, vinyl liner, dolphin m4 supreme.
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    Re: My brother just dumped 56 Gallons of...

    56 gallons?

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    Swampwoman's Avatar
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    Re: My brother just dumped 56 Gallons of...

    So, at 100 ppm cya, his shock level is 39. Tell him he just spent five times the money it would have taken to shock his pool and maybe he'll listen to you granted, who knows what it might have taken to maintain 39 for several days...but even with lots of cya, suspect he's just throwing money out the window!
    In ground extended Grecian, 22,000 gal, Hayward 220t sand filter, vinyl liner, dolphin m4 supreme.
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    aa62579's Avatar
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    Re: My brother just dumped 56 Gallons of...

    Do you think the pool store could have gotten a digit wrong somewhere and actually should have recommended he add 5.6 gallons? There was a thread about this happening earlier this year, but I think it had to do with adding stuff for the pH or TA, and not the FC.
    ~~ Allison ~~
    Intex 18' x 48" Easy Set Pool, approximately 5455 gallons
    Krystal Clear 1500 GPH Filter Pump Model 56635EG - 635 with Auto Timer
    BBB FOR BEGINNERS ~ THIS IS A MUST READ FOR ANYONE OVERWHELMED!!

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    Re: My brother just dumped 56 Gallons of...

    It wasn't a mistake, the pool guy said he does 4 of these a week and then helped him load it up in the car....I truly hope this doesn't damage the pool or equipment, they have such bad luck with everything they do in all aspects!
    Jill

    28k gallon IG Vinyl Pool, 1hp Hayward 200 with Zeobrite in it, Full sun, no bottom drain, heater

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    UnderWaterVanya's Avatar
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    Re: My brother just dumped 56 Gallons of...

    The big problem I see with this is that even if it doesn't damage anything - it isn't efficient. They ran FC up to 200, which then will drop off precipitously even with CYA of 100+. EDIT: Assuming sunlight hits the pool strongly during the day. Let's pretend it drops 50% each day without the organics involved - I think it may drop even faster at the start and then taper off a bit, but this is just a thought experiment:

    200 / 100 / 50 / 25 / 12.5 / 6.25

    He will only be at shock value for 3 days if that is the case - maybe that's enough - maybe not. But if he spread it out - he could maintain shock of many many more days with the same total chemical purchase. Of course he'd have to monitor, and check and recheck FC and do more sweat labor - vs. dump and pump... .

    Has he considered getting a water truck out? I doubt it's all that expensive compared to his 56 gallons of 12%!
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
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    Administrator Leebo's Avatar
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    Re: My brother just dumped 56 Gallons of...

    Are you able to test his FC again? Use a 50/50 mix of chlorine free water and test. It maybe best to dump in some ammonia to lower the FC level ALOT.

    DON'T LISTEN TO ME.....I'M STUPID!

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    Re: My brother just dumped 56 Gallons of...

    I live an hour away and am not gonna drive out there just so he can listen to the pool store anyway. I tested it all on Sat. And he said he wouldn't do anything on Sun until he talked to me but went ahead and dumped all that in before talking to me. I was gonna post here and get instructions but.....according to him he should be swimming in a perfect pool tomorrow! Ha! I've learned too much here to even have a hope that things will be ok tomorrow.....Just another pool store sucker....shame shame. I mean he's not even gonna brush the pool once and would not even think of taking out the lights to get the algae behind those. I'm almost so irritated that I don't even want to help anymore /:
    Jill

    28k gallon IG Vinyl Pool, 1hp Hayward 200 with Zeobrite in it, Full sun, no bottom drain, heater

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    lka674's Avatar
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    Re: My brother just dumped 56 Gallons of...

    Quote Originally Posted by Leebo
    50/50 mix of chlorine free water and test. It maybe best to dump in some ammonia to lower the FC level ALOT.
    Why 50/50? Is that more accurate?? Also, again, I learn something new here EVERY day. Did not know that ammonia lowered FC.
    Pool grand opening Sept 2010. 100% sun exposure. Beach entry with fountain, IG gunite pool, approx 11,000g. Hayward HK sand filter. Intelliflow VS 350 pump w/ max flow rate 160 gpm. Dolphin (cordless) M5 Liberty pool cleaner. The pool has waterfall at one end with a tanning ledge and a spa at the other end that has a spillway into the pool and there is a water shear falling from the pool equip wall into the spa. DH did a beautiful job of designing it himself!

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    AaronGo's Avatar
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    Re: My brother just dumped 56 Gallons of...

    I was hoping it was 56 gallons of something more interesting
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    Administrator Leebo's Avatar
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    Re: My brother just dumped 56 Gallons of...

    If they did add 56 gallons of 12% then it could use 400 drops to test the FC level if it were in fact a FC level of 200. Using a 50/50 mix of pool water and chlorine free water cuts the number of drops in half. It's not as accurate...but saves a TON of reagent.

    DO NOT LISTEN TO ME ABOUT AMMONIA! I'm dead tired and am an idiot.
    I meant to say you can use peroxide to lower the FC level. I do think ammonia will lower FC level's...but also will make a big mess. You also can use Sodium Thiosulfate to lower the FC levels.

    Here's a chart you may enjoy.
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    UnderWaterVanya's Avatar
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    Re: My brother just dumped 56 Gallons of...

    FAS-DPD is only accurate up to 50ppm. Dilution would ensure you were under this number and save reagents as mentioned.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
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    Richard320's Avatar
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    Re: My brother just dumped 56 Gallons of...

    Well, by now, probably half the bleach has been used up by sunlight or algae, so who cares about testing now?

    It will be interesting to see how it plays out. Does it deliver a knock-out punch and clear the green in 24 hours, or does it just waste bleach? Does it fade the liner?

    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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    UnderWaterVanya's Avatar
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    Re: My brother just dumped 56 Gallons of...

    Quote Originally Posted by Richard320
    Well, by now, probably half the bleach has been used up by sunlight or algae, so who cares about testing now?

    It will be interesting to see how it plays out. Does it deliver a knock-out punch and clear the green in 24 hours, or does it just waste bleach? Does it fade the liner?

    Agreed. Curious to see the outcome.
    Could be or and - I'm hoping the later.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
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    UnderWaterVanya's Avatar
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    Re: My brother just dumped 56 Gallons of...

    IF it works and works quickly and doesn't cause equipment damage - I want to know how the PB determines how much to use.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: My brother just dumped 56 Gallons of...

    Quote Originally Posted by Richard320
    Does it fade the liner?
    I hope not, the first post says it is gunite.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    UnderWaterVanya's Avatar
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    Re: My brother just dumped 56 Gallons of...

    Quote Originally Posted by RobbieH
    Quote Originally Posted by Richard320
    Does it fade the liner?
    I hope not, the first post says it is gunite.
    The norm of posting pool info in the signature is confusing when people have another pool they are helping with. I ran into this when posting about a neighbor's AGP recently.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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