CYA Levels

[Reed Kadavy]

The CYA level in my Gilbert AZ pool has crept up to 90. I tried to keep it around 80 during the summer to help stabilize the chlorine. The water was new last December and although I’ve been using liquid chlorine, I did revert to tabs for three weeks while out of town.

Do I need to dump water to bring the reading down or will it drift lower by itself during the winter? I did replace about 25% of the water once during the summer. Is it really more costly to maintain a chlorine level around 7 rather than 5 considering the small amount of chlorine that is lost in the off-season?

 

[ping]

Leave it alone as it will lower this winter. The pool shouldn't be using much chlorine at this time of year and it will only use less as the water cools more.

 

[mkfe47]

The CYA level in my Gilbert AZ pool has crept up to 90. I tried to keep it around 80 during the summer to help stabilize the chlorine. The water was new last December and although I’ve been using liquid chlorine, I did revert to tabs for three weeks while out of town.

Do I need to dump water to bring the reading down or will it drift lower by itself during the winter? I did replace about 25% of the water once during the summer. Is it really more costly to maintain a chlorine level around 7 rather than 5 considering the small amount of chlorine that is lost in the off-season?

Did your CYA decrease as expected?

 

[Reed Kadavy]

Did your CYA decrease as expected?

Did your CYA decrease as expected?

CYA really didn’t come down as I thought it would. I dumped another probably 10% of the water to get CYA down to 70 because I was going to use up some remaining tabs I had while in the process of selling our home.

 

[AUSpool]

Did your CYA decrease as expected?

Geday mkfe47,
Welcome to the forum.
Thats an interesting first post, are you chasing something similar?

 

[cfherrman]

The only danger with high cya is if you have to slam it takes a lot of bleach and testing components.