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Thread: Dry Ice...

  1. #1
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    Dry Ice...

    So while my wife and I enjoyed a lovely vacation last week. But while we were gone, my son and his buddies got a hold of a 50 pound block of dry ice and decided it would be FUN to put a said 50 pound block of dry ice in the swimming pool. After they put dry ice in 2 liter bottles and threw them in. They even went as far as to remove the cover. I know this as they made the mistake of posting the video on their facebook, which both my wife and I enjoyed watching from our hotel room in Hawaii. 17 teen year olds. God help me. But do I have anything to worry about as far as chemical mess up's when I go to open it next month? Now It was all very neat, But not at the disposal of my pool
    John
    15x30 inground vinyl pool. 1 hp hayward pump, 200 pound sand filter. 8 feet deep in the deepest part. 3 feet in the shallow. 4 returns 2 in the steps, 1 in the shallow end, and one in the deep, 1 skimmer (wish there were 2) and one Main drain. Only thing I wish is I had a more powerful pump, The jets never really put out alot of power. No frills pool. Has a light and thats about it as far as specail features go. BBB user ever since I opened this season thanks to TPF

  2. #2
    Senior Member no-mas's Avatar
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    Re: Dry Ice...

    Hey gman,

    God love those little darlings

    If I recall correctly, a pH drop is about the extent of what it changes. Adjust it back up, and you should be fine.
    18k gal inground, everbrite finish, 505 sq ft; 1.5 hp two speed whisperflow; rheem 5100ti 100k btu heat pump; 3 sheer descent falls; DE filter; swg (cell out and using trichlor for now)

  3. #3
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    Re: Dry Ice...

    Why couldn't I think of stuff like that when I was 17?

    Yep, a big pH drop is what you would get. Carbonated pool water.

    Here's an old thread on something similar...

    60-pounds-of-dry-ice-and-a-swimming-pool-t6021.html?hilit=dry%20ice
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

  4. #4
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    Re: Dry Ice...

    If you could aereate the pool some way that would start to blow off the dissolved CO2 and raise the pH.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

  5. #5
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    Re: Dry Ice...

    One positive is that you now have a new pool boy for the summer. Make him pay for the chemicals too. If my daughters did that, I make them work with me when I need ditches dug for new lines, deswamping duty, DE filter cleanings, and a whole host of other fun jobs.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  6. #6
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    Re: Dry Ice...

    Quote Originally Posted by PoolGuyNJ
    One positive is that you now have a new pool boy for the summer. Make him pay for the chemicals too. If my daughters did that, I make them work with me when I need ditches dug for new lines, deswamping duty, DE filter cleanings, and a whole host of other fun jobs.

    Scott

    haha they are not getting away with it. He will be paying for the chemicals as well as getting them, on his bike. I get to drive his souped up mustang for the next 2 wheels while he rides the bus to school, and when he is home from school his mom will be taking him shopping, to the nail salon, to get her hair done, etc yes Im evil. I talked with a few of the other kids parents and they were completely apologetic and have offered to help pay too. I told them to not worry about it, but If they were open to it I am going to re tar my driveway this spring and would love the help of 6 teenagers while I sit in a nice comfy lawn chair with a bud light.

    but ok, The chemical levels were as expected. The wife and I decided to just open the pool now. Our long range fordcast does not predict anything harsh as far as weather goes, most of that is behind us, but the water is below the skimmers so once I fill it to normal I will re check the PH and chlorine and see how much work needs to be done. I wont bother posting numbers until then.
    John
    15x30 inground vinyl pool. 1 hp hayward pump, 200 pound sand filter. 8 feet deep in the deepest part. 3 feet in the shallow. 4 returns 2 in the steps, 1 in the shallow end, and one in the deep, 1 skimmer (wish there were 2) and one Main drain. Only thing I wish is I had a more powerful pump, The jets never really put out alot of power. No frills pool. Has a light and thats about it as far as specail features go. BBB user ever since I opened this season thanks to TPF

  7. #7
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    Re: Dry Ice...

    What a boon for parents the social networking sites have become! No need to snoop these days, your children will exuberantly parade their exploits for all the world to see. Glad that technology was not around when I was a kid...
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

  8. #8
    Senior Member Ohm_Boy's Avatar
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    Re: Dry Ice...

    Wow. I spose it could have been worse, and what a blessing that there was no injury.
    Maybe it's just me, but if it had been my girls, I would have had far more of an issue with the breach of trust than any potential damage to the pool. All of them under 18? Did they at least have ER treatment options in case one of them got hurt?
    [center:1kpalu48]Helpful Links: Pool School | CYA/Chlorine Chart | Pool Calculator[/center:1kpalu48]

  9. #9
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    Re: Dry Ice...

    ah boys will be boys, If they got injured It would probably have thought them a lesson to not do it again. God knows I did stupid stuff when I was their age. Im sure if one of them got hurt the others would laugh at them, then they could drive who ever to the hospital. I feel its just as much of risk to let him drive him self in a 350 hp mustang. But he bought it with his own money, nothing I can do to control him. Im not going to be around for ever to fix his problems, might as well let him make his own mistakes and learn from them.
    John
    15x30 inground vinyl pool. 1 hp hayward pump, 200 pound sand filter. 8 feet deep in the deepest part. 3 feet in the shallow. 4 returns 2 in the steps, 1 in the shallow end, and one in the deep, 1 skimmer (wish there were 2) and one Main drain. Only thing I wish is I had a more powerful pump, The jets never really put out alot of power. No frills pool. Has a light and thats about it as far as specail features go. BBB user ever since I opened this season thanks to TPF

  10. #10
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    Re: Dry Ice...

    I liked the video and the one with the liquid nitrogen too.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  11. #11
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    Re: Dry Ice...

    Quote Originally Posted by gman
    ah boys will be boys, If they got injured It would probably have thought them a lesson to not do it again. God knows I did stupid stuff when I was their age. Im sure if one of them got hurt the others would laugh at them, then they could drive who ever to the hospital. I feel its just as much of risk to let him drive him self in a 350 hp mustang. But he bought it with his own money, nothing I can do to control him. Im not going to be around for ever to fix his problems, might as well let him make his own mistakes and learn from them.
    Great attitude!
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

  12. #12
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    Re: Dry Ice...

    Quote Originally Posted by Beez
    Quote Originally Posted by gman
    ah boys will be boys, If they got injured It would probably have thought them a lesson to not do it again. God knows I did stupid stuff when I was their age. Im sure if one of them got hurt the others would laugh at them, then they could drive who ever to the hospital. I feel its just as much of risk to let him drive him self in a 350 hp mustang. But he bought it with his own money, nothing I can do to control him. Im not going to be around for ever to fix his problems, might as well let him make his own mistakes and learn from them.
    Great attitude!
    lol I re read that and it sounds like I have no care for the safty of my kids. But belive me I do. I just have to have an open mind that no matter how much I protect them, they are going to get in to trouble one way or another. Really the biggest issue here is he lost my trust to let him stay home alone when were on vacation, instead he goes to my moms.

    Pool is back to normal level, Just went out and shut off the hose. Boy my water bill will be high this month. Clorine is 0, CC .5, PH is low as predicted at 6.5, not sure what it was before I filled it. What can I do to raise my PH?
    John
    15x30 inground vinyl pool. 1 hp hayward pump, 200 pound sand filter. 8 feet deep in the deepest part. 3 feet in the shallow. 4 returns 2 in the steps, 1 in the shallow end, and one in the deep, 1 skimmer (wish there were 2) and one Main drain. Only thing I wish is I had a more powerful pump, The jets never really put out alot of power. No frills pool. Has a light and thats about it as far as specail features go. BBB user ever since I opened this season thanks to TPF

  13. #13
    Administrator JasonLion's Avatar
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    Re: Dry Ice...

    You can use borax, soda ash/washing soda, or aeration to raise the PH. I would raise the PH reasonably quickly to 7.0 and then switch to aeration (which will take much longer). Aeration will allow the dissolved CO2 come out of solution, which is better than adding borax or soda ash since they will raise the TA, and aeration won't.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  14. #14
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    Re: Dry Ice...

    Quote Originally Posted by PoolGuyNJ
    I liked the video and the one with the liquid nitrogen too.

    Scott
    Yeah, and I thought that the nitrogen one was actually cooler looking and probably safer.
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

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