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Thread: Chemical storage in the cold?

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    Chemical storage in the cold?

    The pool is all closed up and I'm wondering what chemicals need to be stored inside and which ones (if any) can stay outside in the shed for the winter? I live near Chicago and it gets pretty cold.

    Thanks!
    26,000 gal, AG, cartridge filter.
    Hayward Power Flo LX, 1.5 HP pump
    Install date unknown (pool came with house I bought in 2012)
    Taylor K-2006 FAS-DPD Test Kit

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    Mod Squad jblizzle's Avatar
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    Re: Chemical storage in the cold?

    Solids should be fine outside.
    I would think acid would be as well.
    Liquid chlorine likely should not freeze, but being cold is fine.
    Jason, TFP Moderator
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    pwrstrk's Avatar
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    Re: Chemical storage in the cold?

    I believe the freezing point of 12.5% liquid chlorine is 5 degrees and regular 8.25% bleach is 18-20 degrees. 😎
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: Chemical storage in the cold?

    Thanks...is it safe to keep that stuff in the basement? I have a wooden box/cabinet type of thing I was going to store it all in. I understand a few things shouldn't be stored closely together, right?
    26,000 gal, AG, cartridge filter.
    Hayward Power Flo LX, 1.5 HP pump
    Install date unknown (pool came with house I bought in 2012)
    Taylor K-2006 FAS-DPD Test Kit

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    Mod Squad jblizzle's Avatar
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    Re: Chemical storage in the cold?

    Keep different types of chlorine separate and the acid away from all the chlorine.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Chemical storage in the cold?

    When you say keep the acid away from the chlorine, how far away is away. Same room, different shelf, or different rooms?
    Southeast KS, Unpainted plaster gunite, 22,000 gal, sand filter, Polaris pool sweep

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    Mod Squad jblizzle's Avatar
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    Re: Chemical storage in the cold?

    So there is no chance of them mixing even if both of them spilled.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    aussieta's Avatar
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    Re: Chemical storage in the cold?

    don't keep the acid inside , it corodes everything
    must sweat a vapour or something even when bottle is closed tight
    SWG inground peanut shaped eco-bright concrete pool
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    Re: Chemical storage in the cold?

    Liquid Chlorine will degrade while stored. If you start with 12.5 it will probably be closer to 6% by next spring
    25,000 Gal, Plaster, IG, Auto CL, Waterfall, IntelFlo VS Pump, Dolphin DX6 Robot, TF 100 test kit, Merlin Safety Cover Lots of Trees!, South Eastern Pa

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    Re: Chemical storage in the cold?

    I won't store any chlorine. I buy it as I need it so whatever is left over will get used for cleaning inside.

    Aussieta - what do you mean by not keeping it inside? You mean inside the house? We currently keep it in our little pool house (our little building with the pump, filter, and hot water heater in 1/2 & bathroom in the other). Where do you keep yours?
    Southeast KS, Unpainted plaster gunite, 22,000 gal, sand filter, Polaris pool sweep

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    aussieta's Avatar
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    Re: Chemical storage in the cold?

    i keep my acid in the little equipment shed which is nowhere near airtight
    has plenty of airflow
    SWG inground peanut shaped eco-bright concrete pool
    50,000 litres 13,000 gallons
    Lincoln Salt Chlorinator, 25 gram cell Sand Filter with glass media
    Taylor K2006-C test kit, Taylor K-1766 salt test, Dolphin M500 pool cleaner
    are you taking care of your pool or is the poolshop taking care of you

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    Re: Chemical storage in the cold?

    Quote Originally Posted by pwrstrk View Post
    I believe the freezing point of 12.5% liquid chlorine is 5 degrees and regular 8.25% bleach is 18-20 degrees. ��
    As I calculate in this post, the freezing point of 8.25% bleach is actually around 15F. It's 6% bleach that is around 19F.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
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    Re: Chemical storage in the cold?

    So...liquid chlorine can stay inside but I shouldn't expect it to be real strong next season. The acid should stay outside. I also have stabilizers, clarifiers, etc...those can come inside or should they just stay out? And the chlorine tabs can come inside but should be kept separate from the liquid. Does that about cover it all?

    Thanks for the help!
    26,000 gal, AG, cartridge filter.
    Hayward Power Flo LX, 1.5 HP pump
    Install date unknown (pool came with house I bought in 2012)
    Taylor K-2006 FAS-DPD Test Kit

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    Re: Chemical storage in the cold?

    The miscellaneous chemicals should come inside since they might get damaged by freezing and they shouldn't be harmful stored indoors. As for chlorine of any type, make sure the tops are sealed tightly but note that chlorinating liquid and bleach have pressure-release tops so can expel some chlorine. It's not nearly as harmful as hydrochloric acid, but it can still cause a little corrosion. If you store it in an area that is well ventilated, you should be OK.

    Chlorine tabs are OK to stay outdoors -- in general, solid chemicals are OK outdoors as they have no water to freeze.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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    Re: Chemical storage in the cold?

    I had a gallon of acid stored outside under my deck for the last two years (including this past brutally cold winter). Just used it to drop the pH in my pool, and it worked exactly as expected.
    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
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    Re: Chemical storage in the cold?

    Thanks for all of the input so far. I have specifics now and just don't want to do anything that isn't safe, so...I have a wooden box with 2 separate compartments, completely sealed from each other. One side has a pull out box, so essentially it's got 2 levels. Both have locking lids, not necessarily totally air-tight.
    Here are the chemicals I am bringing in...what should I keep separate and which could go back outside?

    4 bottles liquid chlorine...unopened, sealed
    2 bottles of powder Chlorine stabilizer (cyanuric acid)...both have been opened but are sealed
    2 bottles of PH down, powder...opened
    1 bottle of PH plus
    1 bottle of alkalinity plus
    Also have a tub of chlorine tabs but they are staying outside.

    Thanks!
    26,000 gal, AG, cartridge filter.
    Hayward Power Flo LX, 1.5 HP pump
    Install date unknown (pool came with house I bought in 2012)
    Taylor K-2006 FAS-DPD Test Kit

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