I am burning through the chlorine

cliptx

Well-known member
Mar 11, 2017
52
SE. TX
#1
I put roughly a half gallon in a day. It is not in use, is that normal?

FC 3
CC 0
CYA 30
TA 120
PH between 7.8 and 8

Seeing grey dusty looking sediment on the bottom. We have been running the vacuum, almost every day, rained 2 inches yesterday. No swimmers yet pool is up to 75 degrees.
Still clear.

Not using chlorine tablets, just liquid 10%.
Filter is cleaned almost daily as well.
 

Sammy2

Well-known member
Aug 30, 2016
378
Riverside, CA
#2
You don't have a baseline so how can you say you're burning through chlorine?

With a CyA of 30, a FC of 3 looks about right.

I could be wrong. I have been before.
 

domct203

Bronze Supporter
LifeTime Supporter
TFP Guide
Jun 3, 2015
3,959
CT
#3
A half gallon of bleach in a 7000 gallon pool is a lot, not so in a 30000 gallon one.

It's best to look at how many ppm of FC you are adding daily (chlorine demand). 2-4ppm a day is normal. If you are not using the pool, but it is in the sun all day, 2-3ppm would be about right.


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Sammy2

Well-known member
Aug 30, 2016
378
Riverside, CA
#5
I didn't see it was being added every day but rather just that it was added hence my confusion on a base line.

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domct203

Bronze Supporter
LifeTime Supporter
TFP Guide
Jun 3, 2015
3,959
CT
#7
So, how many ppm of FC are you adding each day?


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YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
9,218
Evans, Georgia
#8
Remember that when it comes to sand filters, a slightly dirty one works better. You should not be back washing daily unless your filter pressure is rising 20-25% daily too.

Yippee :flower:

- - - Updated - - -

I put roughly a half gallon in a day. It is not in use, is that normal?
.
In your sized pool, 18 ounces of 10% LC will raise your FC by 1ppm. So you're only adding at most 3.5ppm daily. Sun UV can easily burn that much up daily too.

Yippee :flower: