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Thread: Bleach Usage Level

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    Bleach Usage Level

    The pool chemistry is perfect this year and the water is awesome....thanks to this site.

    I am maintaining the FC at 6 in the morning and 4 in the evening, which is exactly what the guide says for my CYA of 50. To do that requires the addition of 2 quarts of 8.25% grocery store bleach every evening.

    My question is....does that sound like a lot of bleach needed, or is it in the ballpark?

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    Re: Bleach Usage Level

    that's about right. Put your pool info in your signature. I'm doing about 54oz per day (sunny days) of Walmart 10.5% bleach ($2.50/gallon)
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

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    Re: Bleach Usage Level

    I am about 30 OZ a day of course depends on pool size. If you get a chance can you fill out your signature with info about your pool? It will help with more accurate answers for questions just like this one. There is a link to edit your signature in the quick links drop down under Rules at the top of the page.
    12,300 Gallon, IG PebbleFina, 3 ft sheer, 2 Jandy nicheless LED lights, Jandy Pro 1.5HP VS pump (A.O. Smith Motor), PB4-60 Booster pump, Polaris 280, Jandy cv340 cartridge filter, Zodiac Z4 control panel W/iAquaLink, Stenner pumps for chlorine & MA connected to WiOn WiFi switches, TF-100. You can support TFP with AmazonSmile just click the link!

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    Re: Bleach Usage Level

    sounds right all around!
    30 oz for 12,300
    54 oz for mine
    some days I skip a day and add 80
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

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    Re: Bleach Usage Level

    I will say you might be flirting with danger though. I always did the same by keeping mine between 4-6 ppm with a CYA of 50. ONE DAY it dipped to 3 ppm and I got an algae bloom and had to SLAM. I was so upset with myself. It was on a weekend too and kids wanted to swim. So now, just to be on the safe side I try to keep it between 6-10 ppm. If it's at 6, I add.

    Also, adding in the evening which I noticed you are doing might be ideal because the chlorine can just fight the nasties at night and not have to fight the sun at the same time
    15,000 gallon free form Viking fiberglass pool. Hayward Star-Clear Plus C12002 cartridge filter. Hayward Swim Pure Plus T-15 SWG. Testing with TF-100 Kit. 2 speed 1.5HP Supreme pump. Dolphin Nautilus robotic cleaner

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    Re: Bleach Usage Level

    Quote Originally Posted by nlindelldc View Post
    I will say you might be flirting with danger though. I always did the same by keeping mine between 4-6 ppm with a CYA of 50. ONE DAY it dipped to 3 ppm and I got an algae bloom and had to SLAM. I was so upset with myself. It was on a weekend too and kids wanted to swim. So now, just to be on the safe side I try to keep it between 6-10 ppm. If it's at 6, I add.

    Also, adding in the evening which I noticed you are doing might be ideal because the chlorine can just fight the nasties at night and not have to fight the sun at the same time
    now you got me thinking, especially on "cold" days like today with the sun hiding...good day to just dip the FC enough until the sun comes out tomorrow.
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

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    Re: Bleach Usage Level

    OK, the info is in the sig.

    OK, 64 oz. for 14,500 gal. Based on others that posted here it DOES sound a bit high.

    The best bleach I can find is at the dollar store - 8.25% for $2.95. Our Walmart does not carry 11%, and they want $3.29 for the 8.25% stuff.
    24' round above ground pool, vinyl liner, 13,555 gallons, Hayward 1.5 HP sand filter. Using 8.25% grocery store bleach. Testing with TF-100 kit.

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    Re: Bleach Usage Level

    Check the dates on Dollar Store bleach. If it's old, you're better off at Wal-Mart. And I hate Wal-Mart
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
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    Re: Bleach Usage Level

    Quote Originally Posted by Mr Bruce View Post
    Check the dates on Dollar Store bleach. If it's old, you're better off at Wal-Mart. And I hate Wal-Mart
    My thoughts exactly. This site has me in Walmart more than ever before. That's the one downside I've found

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    Re: Bleach Usage Level

    Quote Originally Posted by GypsmJim View Post
    OK, the info is in the sig.

    OK, 64 oz. for 14,500 gal. Based on others that posted here it DOES sound a bit high.

    The best bleach I can find is at the dollar store - 8.25% for $2.95. Our Walmart does not carry 11%, and they want $3.29 for the 8.25% stuff.
    14,500 is an odd volume for a 24' round. What is your average depth? 64oz. of 8.25% bleach in a 14,500 gallon pool works out to an FC loss of about 4 ppm/day. That's not too far above average. How much sun does your pool receive?

    8.25% bleach at $2.95/gallon (I assumed gallon, but some bottle at 121 oz., so check) is $35.76/gallon of 100% bleach (easy way to compare it).

    I bought 10% pool sanitizer (same chemical, different label) at Meijer for $9.99/4 gallons which works out to $24.98/gallon of 100%. That was on-sale, but now that's up to $12.99/4 gallons of 10%. My last batch was bought at the pool store and was 12.5% pool sanitizer (again, same chemical, different label) for $12.99/4 gallons which works out to $25.98/gallon of 100%. I would shop around for a cheaper bleach source.
    10,500 gal., 21' round, 4' deep AG vinyl pool, Hayward S180T sand filter, Hayward SP1510Z1XEHC 1HP Pump
    TF-100 test kit w/ Speedstir, 16 mil clear solar cover, city water, 12.5% bleach from the pool store, Dolphin Nautilus Plus CC robotic cleaner

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    Re: Bleach Usage Level

    OK, I'll get real specific now. My numbers were based on the spec pool dimensions. By actual measurement now, I am treating 13,555 gallons of water +- 71 gallons because of evaporation, refilling, rain and draining. It's classified as a 52" pool.

    I'm glad the CL age was mentioned. I hadn't considered that. The new stuff I just bought was 2-3 weeks old. I also had 2 gallons left from last year (from July 2015) that was used in the mix (to get rid of it), but I really didn't notice a difference.

    The weather has been changable. It was 80 - 90 last week, but only in the 60's (deg F) this week. Last week I used the new stuff. This week I used the found the old stuff and used it up.

    I did investigate alternate sources. The best $ I found was for 12.5% stuff for $16.25 for 4 gallions delivered. That was at a local chemical company. It's a little inconvenient, but I guess i'll go that route.

    The pool receives 100% sun - that is when its out.

    Thanks for all the help...
    24' round above ground pool, vinyl liner, 13,555 gallons, Hayward 1.5 HP sand filter. Using 8.25% grocery store bleach. Testing with TF-100 kit.

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    Re: Bleach Usage Level

    Quote Originally Posted by nlindelldc View Post
    So now, just to be on the safe side I try to keep it between 6-10 ppm. If it's at 6, I add.
    I do that as well.

    Though I don't dose daily, I typically add 1/2 gallon every 4 days, sometimes more if I have a lot of swimmer/guests in a day.

    Since getting to know my pools needs it's worked quite well. I'd MUCH rather go a bit over then under.


    Speaking of dollar store...well dollar general, mine doesn't carry the 1 gallon jugs of 8.25% a lot of folks have talked about.

    They did have 96oz generic with no marking as to strength. They are a dollar each and had recent date codes (within the month)
    so I figured I'd give them a try.

    1 of them added 2ppm FC to my pool. The other jug with identical mfg date added zero.
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
    (1.5 HP motor) Raypak PR266AEN (266k btu) gas heater. TF-100 Test Kit.
    Dolphin E10 Cleaning Robot.

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    Re: Bleach Usage Level

    I had a similar question. First year maintaining a pool and it is very clear and looks great. We have multiple people in it each day and it has been very sunny and hot recently. I am adding about 80 oz bleach (8.25%) about everyday to maintain chlorine level at 4-5 ppm. I just tested my CYA and it was 30. Is the combination of sunny days and several kids in the pool what is causing me to have to add what seems to me to be quite a bit of bleach? Should I try to raise CYA or continue as is?
    18x33x54 AGP (18,500 gallons) - Hayward Power Flo 2 Speed Pump - Hayward 24" Sand Filter - TF100 Test Kit

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    Re: Bleach Usage Level

    Quote Originally Posted by camueller View Post
    My thoughts exactly. This site has me in Walmart more than ever before. That's the one downside I've found
    I try and avoid the Store of All Evil at all costs. No slight at all to anyone who works there, I just try to make an effort to give my money to the locals when possible.
    Luckily I have a supply of 12.5% from the local hardware store.

    Look around, at a farm store or other places you may be able to avoid them. But if not it's a necessary evil I would guess
    AGP: 27' x 52" : 17,500 gallon
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    Re: Bleach Usage Level

    I have a dumb question. I have only owned my pool three years, but the several pool stores I visit in Arizona have not ever told me to poor bleach into my pool. Tab chlorine and bags of shock. What am I missing? I want to be in the know.
    10,000 gallon IG pebble pool, 1,200 gallon raised spa, built 2006, Hayward Mega Plus 700 cartridge filter, Hayward Northstar SP4015NS 1.5hp pump, Hayward Super II 2.5hp spa pump w/blower, Jandy AquaLink RS, SpaLink RS controller, A&A Quik Leveler, Quik Clean In-floor cleaning/leaf vac, Laars LX 400 heater, Fiberstars 6004 fiber optic light. Massive delamination of ShastaDeck cool decking.

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    Re: Bleach Usage Level

    Quote Originally Posted by garywi View Post
    I have a dumb question. I have only owned my pool three years, but the several pool stores I visit in Arizona have not ever told me to poor bleach into my pool. Tab chlorine and bags of shock. What am I missing? I want to be in the know.
    If I understand you, it's easy....don't go to the pool store and follow TFP BBB
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

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    Re: Bleach Usage Level

    Quote Originally Posted by GypsmJim View Post
    OK, the info is in the sig.

    OK, 64 oz. for 14,500 gal. Based on others that posted here it DOES sound a bit high.

    The best bleach I can find is at the dollar store - 8.25% for $2.95. Our Walmart does not carry 11%, and they want $3.29 for the 8.25% stuff.
    Just checked online - the Walmart Supercenter in North Tonawanda shows they carry the "Pool Essentials Chlorinating Liquid" - which is 10% - for $2.50.
    Gene
    ​12,300 gal IG play pool - Pebbletec - built 10/1999 || Hayward S360SX 36" sand filter || Hayward Ecostar SP3400 VSP || A&A In-Floor cleaning system || Quik Water Leveler || Quik Dek-clor (limited use)
    TF-100 testkit / Speedstir - A good test kit is not an expense, it's an investment

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    Re: Bleach Usage Level

    that's what I get at my local walmart...best deal around here.
    Muriatic Acid (MA) is cheapest at Runnings.
    Pool installed 8/2015. 30' round Radiant pool. 21,000 gallons. 200# sand. Hayward Vari flow XL valve. 1.5hp Hayward Power-Flo Matrix running 10 hours/day in two periods. TF100 with speed stir. Sun all day, south side of house
    Order test kit TF-100 w/ Speed Stir and then Poolmath Calculator --- RECOMMENDED LEVELS --- POOL SCHOOL --- Algae? --- Chlorine/CYA CHART.

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    Re: Bleach Usage Level

    Quote Originally Posted by garywi View Post
    I have a dumb question. I have only owned my pool three years, but the several pool stores I visit in Arizona have not ever told me to poor bleach into my pool. Tab chlorine and bags of shock. What am I missing?
    They make very little money if you don't buy tabs and bags of shock which over a period of time make things worse
    making you buy more potions from them.

    - - - Updated - - -

    Quote Originally Posted by h2oboy22 View Post
    I had a similar question. First year maintaining a pool and it is very clear and looks great. We have multiple people in it each day and it has been very sunny and hot recently. I am adding about 80 oz bleach (8.25%) about everyday to maintain chlorine level at 4-5 ppm. I just tested my CYA and it was 30. Is the combination of sunny days and several kids in the pool what is causing me to have to add what seems to me to be quite a bit of bleach? Should I try to raise CYA or continue as is?
    I had my pool at 30 cya and found 50 works a little better for less chlorine usage. Yes definitely when you have swimmers it eats up more.

    When I have guests over I dose a bit higher knowing the FC is going to drop quite a bit, by the end of the day then test again and add more
    if needed.
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
    (1.5 HP motor) Raypak PR266AEN (266k btu) gas heater. TF-100 Test Kit.
    Dolphin E10 Cleaning Robot.

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