Thread: Guestimate on how much bleach/chlorine usage?

1. Guestimate on how much bleach/chlorine usage?

I realize that there are several factors that play in here, but I'm wondering about how much bleach liquid chlorine I can expect to use over the course of the summer season? Let's assume my ph, alk, cy, etc are all acceptable levels, and I don't end up getting any algae outbreaks. I'm curious as to what you think a 22k gallon pool here in Oklahoma, would consume bleach/chlorine wise? Reason I'm asking is there is a sale at the local Atwoods on bleach (5.25%) .99 gallon, and chlorine (10%) 2.99 gallon. I wanted to stock up.

2. Re: Guestimate on how much bleach/chlorine usage?

There's a Pool Math calculator on Trouble Free Pools that will tell you how much chlorine you need at this moment.

I believe the consensus is somewhere around 2ppm every day. In your pool I'm guessing that would be about a gallon of your 5.25% bleach.

3. Re: Guestimate on how much bleach/chlorine usage?

Depending on how many days your summer is. Multiplying the number of days by the amount of bleach you use each day will give you a ball park number.
However, I wouldn't stock up too much in advance as bleach loses potency over time. I keep a month's worth of 8.25% and it doesn't degrade much in a month.

If you figure about 2 ppm FC loss per day, and your swim season is 150 days long, you'll use about 77 gallons of 8.25% bleach the entire season. That's about 81 bottles of 8.25%. Or about 122 bottles of 5.25%.

4. Re: Guestimate on how much bleach/chlorine usage?

Thanks for the tips. I can see using much more than I figured. I bought 24 gallons of the 10% to start off. May go back and grab some of the 5.25%

5. Re: Guestimate on how much bleach/chlorine usage?

Originally Posted by h2oluver
Thanks for the tips. I can see using much more than I figured. I bought 24 gallons of the 10% to start off. May go back and grab some of the 5.25%
I would not get more. You have plenty now, maybe too much. This was a new fill right?

6. Re: Guestimate on how much bleach/chlorine usage?

Yes new fill. You think I have plenty? This my first time doing the TF method so I have no experience to base my usage off.

7. Re: Guestimate on how much bleach/chlorine usage?

24 gallons 10% for a clean pool of that size will last a little while yes. Just estimating, you'll use 60-70 ounces daily depending on what you lose. Some will be a little weaker by the time you get to it though, so unless you want more than a month out supply, I would wait. I'm like Bama, I'd rather not have it around for more than about a month. 10% degrades faster than 8.25% by a little, so there isn't much point if you see what I mean.

8. Re: Guestimate on how much bleach/chlorine usage?

Sounds good. I'll go with what I have for now.

9. Re: Guestimate on how much bleach/chlorine usage?

I love your enthusiasm, 24 gallons is a serious start. Love it!

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