My pool has been sparkling clear all summer, I have been just tweaking my Autopilot setting keeping between 3-5 FC levels, and all has been well. 5 days ago it got cloudy, I shocked it (15) but didn't keep it there though, and today it is still cloudy. I thought my shock level was 15, but am I using the Pool Calculator right? It is saying 23 is my shock level? Here are my numbers:
FC - 3.5
TC - 3.5
PH - 7.6ish
TA - 100
CYA - not sure, out of reagent, it was 60 on 8/2 and I added about 2 lbs of CYA
It may have started to get cloudy when I added the CYA... not positive though.
So is it really 23? If so, I will get it up there and get this thing cleaned up!