The numbers game

tadcpht

Well-known member
Jul 17, 2012
95
Forest, VA
My pool has been open for a few weeks and looks really good. Numbers are solid. The temperature is still really cold and we will not be swimming for a while. Should I just keep the FC and pH at the target levels? CYA is around 50-55. I have been keeping the FC around 5-10. According to the CYA chart my FC should not be below 4. Am I doing this right? thanks in advance for your replies.
 

pwrstrk

TFP Expert
LifeTime Supporter
Aug 17, 2012
4,758
Elverson Pa.
I think your doing fine. Just maintain your levels like your are. Make sure you don't let your FC fall below the min. Do you think your CYA is closer to 50 or 60 ?
Your using liquid chlorine I hope ?
 

Patrick_B

TFP Expert
LifeTime Supporter
Jun 7, 2011
14,999
Midland TX
Sounds like you are doing well with FC and have an understanding. Your range is a little broad, but if you understand the target for Cya and you aren't letting it slack, then you are on the right track with that.
 

tadcpht

Well-known member
Jul 17, 2012
95
Forest, VA
Fresh #'s:

FC 4
CC 0.5
CYA 50
Alk 100
pH 7.8

Yes I am using liquid bleach, and b/c the FC is four, I will add about 41oz. to bring back up to 7. Also add a little Muriatic acid.
 

pwrstrk

TFP Expert
LifeTime Supporter
Aug 17, 2012
4,758
Elverson Pa.
Yep raise your FC up. Your right at the min as you know. When you get into higher chlorine demand you can go to 8. That'll give you more wiggle room for burn off so you don't fall below the minimum.
Thanks for the test results. Your doing a good job !