Is this the bleach I should use?

Saturn94

Well-known member
Mar 11, 2015
885
SE Virginia
just called my 2 local pool stores, neither carry liquid chlorine because the shelf life is only a month... they of course carry the granuals that likely have trichlor in them


My local home depot and lowes doesn't have the liquid chlorine
Pool stores here will gladly sell you really old liquid chlorine. ?
 

IceShadow

Gold Supporter
TFP Guide
Jun 8, 2019
2,177
Milwaukee, WI
i have some friends who work at a water treatment plant wonder if they could get me something that work?
Probably - chlorine is added to water treatment. You want Sodium Hypochlorite. Ideally in 10% or 12.5% concentration. I'm not sure what water treatment plants use to be honest.
 

dethnode

Active member
Apr 23, 2020
44
arkansas
ordered 3 gallons from ace, that should at least get me through for a while right? With a 12,300 gallon pool how much 10% should i expect to have to add on a daily basis
 

IceShadow

Gold Supporter
TFP Guide
Jun 8, 2019
2,177
Milwaukee, WI
ordered 3 gallons from ace, that should at least get me through for a while right? With a 12,300 gallon pool how much 10% should i expect to have to add on a daily basis
Depends on a lot of things. If your CYA level is appropriate to your climate and the amount of sun on the pool you can lose 2-4ppm daily. 2ppm would be about 1/4 gallon addition, 4ppm would be about 1/2 gallon addition. So a gallon would last about 2-4 days if the CYA is appropriate.

Is your TFT-100 in? If so, post full test results. :)
 

dethnode

Active member
Apr 23, 2020
44
arkansas
I just filled the pool with fresh city water, I just ordered my TFT-100 today so can't post any results, I was going to go ahead and add CYA and chlorine based on the assumption that the tap water has been sitting in there for 3 days now, with kids swimming two of those, so I assumed I could just add those two chemicals with an assumed current level of 0

When my TFT-100 comes in, I will test PH and TA and adjust accordingly

Is there anything wrong with these assumptions?
 

IceShadow

Gold Supporter
TFP Guide
Jun 8, 2019
2,177
Milwaukee, WI
Your water may have some chlorine when filling from city water, but it won't be a lot. CYA will be 0 so if it's a fresh fill go ahead and add 30ppm of CYA as soon as you can get your hands on it. Without it that chlorine will burn off quickly, but if you go green you're going to need a LOT more chlorine to clean it up.
 

DeanP66

Well-known member
Mar 26, 2014
794
San Jose, CA
Definitely get some liquid chlorine in the pool right away. With the kids swimming for 2 days, there will surely be some organics that need to be sanitized. I would at least start with half a gallon of 10%, and add at least a quarter gallon daily till your test kit arrives.

Add around 3 to 4 Lbs of CYA granules. That should raise your level between 30 and 40 ppm. I use the clorox brand from Walmart. It goes for around $15 for 4 Lbs.
 

dethnode

Active member
Apr 23, 2020
44
arkansas
I was going to add CYA tonight to get it up to 40, should I stay at 30 instead? And then I was going to add in the Chlorine tomorrow night. Should I add both tonight? Also, we are expecting rain and cold weather the next 4 days, does that impact when and how much I add of either the CYA or the chlorine?
 
  • Like
Reactions: Casey

DeanP66

Well-known member
Mar 26, 2014
794
San Jose, CA
Add them both right away. Don't take a chance of something starting to grow because you've got no free chlorine (FC) in the pool. Some might get burnt off, but it's better than getting an algae outbreak. I would go to at least 40 personally. It will make the chlorine last longer. I dosed mine to 50 here in San Jose, CA before I got a salt water generator. I found that at 50, the chlorine would hold much better than down at 30 or even 40.
 
  • Like
Reactions: Casey

IceShadow

Gold Supporter
TFP Guide
Jun 8, 2019
2,177
Milwaukee, WI
Start at 30. If you overshoot it's hard to get rid of it short of draining. You can add chlorine as soon as the CYA gets in, assuming it's at 30ppm as soon as you start it dissolving. Get it going ASAP, don't worry about the rain/cold. :) After a couple of days test it and see what it is, and add more if need be.
 

dethnode

Active member
Apr 23, 2020
44
arkansas
I have a testing kit I purchased at walmart, but I have not even opened it yet, should I use it until the TFT-100 gets here or return it and save my money?
 

Griswald

Well-known member
Jul 7, 2014
734
Hope Mills, NC
ordered 3 gallons from ace, that should at least get me through for a while right? With a 12,300 gallon pool how much 10% should i expect to have to add on a daily basis
I went through 4 gallons of liquid shock, 4 bags of standard shock and 6 bags of dichlor before my pool got cleaned. My problem was limited to pollen in the filter and no where to buy bleach except the 4 gallons that were limited to me by Leslie's pool.
 

jwhop3

Well-known member
Jun 9, 2014
139
Rocky Mount/Virginia
The one (okay, 6) I got was labeled as concentrated bleach, which is the one I usually get. This year the bottle is smaller (86 oz) but stronger, 8% I believe. Mine had a limit 2 sign, but I figured they could only tell me no, and i took 6 to the self check. Hey, i'm not hoarding after all, every bit of it is going to use.