CSI math question

jake556

Well-known member
Nov 13, 2020
69
AZ
Pool Size
12000
Surface
Plaster
Chlorine
Liquid Chlorine
So here is my current readings, and the seem to be on the high side. Our fill water in AZ is hard 375 CH out of the tap.

I don’t have Borates or the Salt test so do I leave those blank or do I need to test for them?

Playing with the numbers If I lower my PH to 7.4 it is good, but it seems like my pool naturally wants to be at 7.6-7.8

So what is my best course of action to dial in my CSI? Lower PH and TA then aerate to bring up PH?

I usually keep PH better 7.6-7.8 and don’t add MA until Im up to a 8.

935A13BA-D0F5-4A8C-8A07-15778104DB08.png
 
If you never added borates or salt then leave those fields blank.

In your high CH area with high water temperature you need to be aggressive at lowering your TA and keeping your pH around 7.4 to prevent scaling.
 
If you never added borates or salt then leave those fields blank.

In your high CH area with high water temperature you need to be aggressive at lowering your TA and keeping your pH around 7.4 to prevent scaling.
Awesome I appreciate it, what would you recommend for a target PH range for the time being?
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.