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Thread: Best option for buying large quantities of liquid chlorine

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    Best option for buying large quantities of liquid chlorine

    Hi All

    I posted a question about this in the "best places to buy liquid chlorine" thread...but looks like although it's a sticky, it doesn't get much activity. I realized the last post before mine was almost two years ago, so figured I would start a new thread.

    This will be my first summer maintaining a pool. We bought our house in October of last year and closed it right away. I'm planning to use liquid chlorine / bleach. Is there an option besides buying ~5-10 jugs of bleach every week? Is there any way to buy larger quantities or larger, refillable bottles? I don't love the idea of having so many bottles around and needing to recycle them all every week. Long term, I think I will probably do a salt water system, but at least for this first year I will be using liquid...

    Where are you all getting bleach?
    Anybody else in MA?

    Thanks!
    IG / Gunite / ~15,000 gallon / Hayward Pro Series Sand Filter / Hayward Super Pump / Aquacomfort ACT-1100 Heat Pump / TF-100 with Speedstir

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    Re: Best option for buying large quantities of liquid chlorine

    We purchased bottles at Wal-Mart and ACE when they went on sale early in the season.

    For our 20k gallon pool I'd use a jug every few days with moderate to heavy use. I kept the pool covered with a solar cover when not in use. When we had parties I'd dump an extra jug or two in. I don't think we went through 5-10 a week or anywhere close.

    I believe you can buy bulk chlorine at pool stores. You can buy giant water tanks for the back of your pickup to carry it. I've seen them used on Craigslist, you can get 50 or 100 gallons for a few hundred dollars. The issue isn't purchasing or transporting, it's storing.

    Chlorine breaks down over time. If you're buying bulk you're going to need to build an underground tank to keep the chlorine at a constant temperature and away from the light.

    My advice would be to start with the jugs and see what your demands are. If it's burdensome then consider buying a tank and burying your chlorine, or going with a salt water generator.
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    Re: Best option for buying large quantities of liquid chlorine

    Cheapest for me is cleaning bleach at Walmart. 6% and gal jugs @1.77. Pool store has 12.5% they sell @7 something so much more expensive. However they do have 2 1/2 gal totes so more convenient. I'm a cheap son of a gun so put up with gal jugs

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    Re: Best option for buying large quantities of liquid chlorine

    Quote Originally Posted by ntobik View Post
    We purchased bottles at Wal-Mart and ACE when they went on sale early in the season.

    For our 20k gallon pool I'd use a jug every few days with moderate to heavy use. I kept the pool covered with a solar cover when not in use. When we had parties I'd dump an extra jug or two in. I don't think we went through 5-10 a week or anywhere close.

    I believe you can buy bulk chlorine at pool stores. You can buy giant water tanks for the back of your pickup to carry it. I've seen them used on Craigslist, you can get 50 or 100 gallons for a few hundred dollars. The issue isn't purchasing or transporting, it's storing.

    Chlorine breaks down over time. If you're buying bulk you're going to need to build an underground tank to keep the chlorine at a constant temperature and away from the light.

    My advice would be to start with the jugs and see what your demands are. If it's burdensome then consider buying a tank and burying your chlorine, or going with a salt water generator.
    All good info, thanks. Based on what I've read here, I figured I would be going through more chlorine than that during the summer (no solar cover...need to look into that as well) and the idea of having to go to wal mart every week (I think I've been in there 4 times in my life) or store dozens of bottles of bleach at a time doesn't sound fun. I'll see what the local pool stores offer for refillable options.


    Quote Originally Posted by madwil View Post
    Cheapest for me is cleaning bleach at Walmart. 6% and gal jugs @1.77. Pool store has 12.5% they sell @7 something so much more expensive. However they do have 2 1/2 gal totes so more convenient. I'm a cheap son of a gun so put up with gal jugs
    Sounds like me! Thanks for the information.
    IG / Gunite / ~15,000 gallon / Hayward Pro Series Sand Filter / Hayward Super Pump / Aquacomfort ACT-1100 Heat Pump / TF-100 with Speedstir

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    Re: Best option for buying large quantities of liquid chlorine

    Cheapest for me was the local pool store. They sell them in 2.5 gallon refills. You have to purchase the first container, but then you just exchange it (like one can do with propane tanks). I ran the numbers and theirs was cheaper than buying bleach. Their concentration is higher, so you have to take that into account when doing the calculations since you use about half the amount.

    For example, the 1.77 mentioned above for 1 gallon is 6%. If you buy 2.5 gallons of 12% pool store chlorine, then that is the equivalent of buying 5 gallons of the bleach. So 1.77x5=8.85. So the 7 something is actually cheaper. Of course, the initial cost of the container will offset this, but you should make that cost up easy enough. Plus, my store will give the 10th one free, which means it gets paid for down the road anyway. Just saying that for me, this was the cheaper/easier way to go. I have a SWG, but the storms here in FL means that I often have to drain water or SLAM the pool.
    Screened in 15,000 gallon in-ground plaster SWG pool with attached spillover style spa. Borates 0 (might bring it up to 40-50ppm this season). Econo Flo 165 variable speed pump. Raypak 133k BTU Heat Pump. Oasis Controller. Dolphin Nautilus Plus CC Pool Cleaner. Taylor K-2006 test kit.

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    Re: Best option for buying large quantities of liquid chlorine

    In the next few weeks or so somebody will start a "2017 bleach prices" thread and people will update it based on what they find around their area. Should help you more once additional East Coast people start logging in for the season and they might turn you on to more regional options that we might not know about. I agree with above though, get an idea of what you will use before buying too much. More than a week or two in advance and you will lose a lot of strength, especially if it is stored in a warm area.

    Here is the link to the thread from last year to give you an idea: 2016 bleach prices
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    Re: Best option for buying large quantities of liquid chlorine

    Quote Originally Posted by Mavrk View Post
    Cheapest for me was the local pool store. They sell them in 2.5 gallon refills. You have to purchase the first container, but then you just exchange it (like one can do with propane tanks). I ran the numbers and theirs was cheaper than buying bleach. Their concentration is higher, so you have to take that into account when doing the calculations since you use about half the amount.

    For example, the 1.77 mentioned above for 1 gallon is 6%. If you buy 2.5 gallons of 12% pool store chlorine, then that is the equivalent of buying 5 gallons of the bleach. So 1.77x5=8.85. So the 7 something is actually cheaper. Of course, the initial cost of the container will offset this, but you should make that cost up easy enough. Plus, my store will give the 10th one free, which means it gets paid for down the road anyway. Just saying that for me, this was the cheaper/easier way to go. I have a SWG, but the storms here in FL means that I often have to drain water or SLAM the pool.
    Mabel
    You would be right if 2 1/2 gal was 7 something. My pool store charges 7 per gal not per tote. 2 1/2 gal would be close to $20, so the gal @1.77 is cheaper here.

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    Re: Best option for buying large quantities of liquid chlorine

    Quote Originally Posted by Donldson View Post
    In the next few weeks or so somebody will start a "2017 bleach prices" thread and people will update it based on what they find around their area. Should help you more once additional East Coast people start logging in for the season and they might turn you on to more regional options that we might not know about. I agree with above though, get an idea of what you will use before buying too much. More than a week or two in advance and you will lose a lot of strength, especially if it is stored in a warm area.

    Here is the link to the thread from last year to give you an idea: 2016 bleach prices
    Thanks for the info.

    Interesting info about the bleach losing its strength so fast. I assumed that the stuff I'm buying at the store has been in a warehouse or the back of the store on the shelf for weeks already before I purchased it, so a few weeks out of the sun in my basement wouldn't do it any harm. I will do as suggested and will likely start out just buying a few gallons at a time to get a sense of how much I will be using.
    IG / Gunite / ~15,000 gallon / Hayward Pro Series Sand Filter / Hayward Super Pump / Aquacomfort ACT-1100 Heat Pump / TF-100 with Speedstir

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    Re: Best option for buying large quantities of liquid chlorine

    Quote Originally Posted by madwil View Post
    Mabel
    You would be right if 2 1/2 gal was 7 something. My pool store charges 7 per gal not per tote. 2 1/2 gal would be close to $20, so the gal @1.77 is cheaper here.
    Holy cow that is pricey! My pool store charges $4.50 to refill 2.5 gallons of 10.5% chlorine. That is $1.80 per gallon, plus it is higher concentration, so it ends up cheaper than bleach.

    FWIW, I have not noticed a significant loss of strength when storing my bleach.
    Screened in 15,000 gallon in-ground plaster SWG pool with attached spillover style spa. Borates 0 (might bring it up to 40-50ppm this season). Econo Flo 165 variable speed pump. Raypak 133k BTU Heat Pump. Oasis Controller. Dolphin Nautilus Plus CC Pool Cleaner. Taylor K-2006 test kit.

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    Re: Best option for buying large quantities of liquid chlorine

    Ocean State Job Lot sell gallon jugs, 12.5% chlorine for $2.99 each. That has been the price for the 4 years that I've been buying from them so I hoping that they keep it at that price this coming season. During the pool season they have high inventory turnover so their product is always fresh. Usually I can get stock that has been manufactured with in 10 days. I get enough to last me about a months, so the last of it is never older than 6 weeks. I also keep it stored in my basement where it stay cool.
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    Re: Best option for buying large quantities of liquid chlorine

    I go through a gallon of 8.25% in a week. (dosing a half gallon twice)

    Best deal i found was Fred Meyer generic for $ 1.78
    been buying that the last 3 years.
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    Re: Best option for buying large quantities of liquid chlorine

    Ocean State Job Lot sells gallon jugs, 12.5% chlorine for $2.99 each. That has been the price for the 4 years that I've been buying from them so I hoping that they keep it at that price this coming season. During the pool season they have high inventory turnover so their product is always fresh. Usually I can get stock that has been manufactured with in 10 days. I get enough to last me about a months, so the last of it is never older than 6 weeks. I also keep it stored in my basement where it stays cool.

    Once you get your water balance and have established your target FC, and assuming that you will need to replace ~3 ppm of chlorine each day, for 18,000 gallon pools it's going to run around 1/2 gallon of 12.5 % chlorine a day. This is a rough ball park number.
    30,000 gal, 20 x 40 ft vinyl, IG, installed 2006
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    Re: Best option for buying large quantities of liquid chlorine

    When I ask at the pool store do I ask for liquid bleach, or what do they call it?
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    Re: Best option for buying large quantities of liquid chlorine

    They call it liquid chlorine.
    Note: The bottles of bleach from the grocery store have a date code on them. It looks like a bunch of numbers, something like 17050D2. That is 2017 the 50th day. That way you know how old it is.
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    Re: Best option for buying large quantities of liquid chlorine

    Yes, don't ask for bleach at a pool store or you risk getting a lecture on how using bleach will raise your TDS and destroy your pool and all that good stuff. None of it is particularly true, bleach is just lower strength liquid chlorine, but save yourself the trouble and call it liquid chlorine.

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    Re: Best option for buying large quantities of liquid chlorine

    They call it liquid pool shock around here in the Chicago area. I get 12.5% for $2.50 a gallon.
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    Re: Best option for buying large quantities of liquid chlorine

    I will do that, thank you.
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    Re: Best option for buying large quantities of liquid chlorine

    When I need bleach for the pool, I like the 3 jug box from Costco. Worth pricing out if you belong there. Like the OP, I never step foot in Wallyworld. Also I think you're possibly over estimating how much you'll be using each week.

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