how much chlorine in pool

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how much chlorine in pool

Postby dbl » Wed Aug 31, 2011 7:56 pm

If I have a 10,000 gallon pool and my chlorine test kit indicates i have 4ppm - can you tell me how many gallons of chlorine I have in the pool.
thanks dbl
Posts: 1
Joined: Wed Aug 31, 2011 7:43 pm

Re: how much chlorine in pool

Postby robertR0931 » Wed Aug 01, 2012 6:38 am

So we know that:
120,000 gallons of water = 1,000,000 pounds
1 ppm = 1 pound per 120,000 gallons of water

you need 4ppm for 10,000 gallons so:

10,000gallons/120,000=.08 pounds of water
.08 pounds of water x 4 (you need 4ppm) = so you have .33 gallons of chlorine in the pool.

I could be wrong but that is how I see the formula working out.
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Joined: Tue Jul 31, 2012 1:24 am

Re: how much chlorine in pool

Postby poolman » Thu May 15, 2014 11:32 pm

It's a lot simpler than that.

You have 4 parts per million. That means that if your pool held 1,000,000 gallons, it would contain 4 gallons of chlorine at 4ppm.

If it held one-tenth as much - 100,000 gallons - it would contain 0.4 gallons of chlorine.

If it held just one-tenth of that - 10,000 gallons, which is what you have - it would contain 0.04 gallons of chlorine.

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