Tested CYA this morning & it's just below 30ppm - my test doesn't register any lower so I'm guessing it's somewhere in the 20's. The rest of my #'s are:
FC - 1.0
CC - 0
pH - 7.7
TA - 80
What should I do next? I opened this year using BBB, but I still have plenty of chlor brite shock (sodium dichloro-s-triazinetrione dihydrate) & some trichlor tabs from last season that I could use if that will help add some CYA.
If that's a good option, then how much do I add? Also, is there a trick to keeping CYA from dropping below 30?
When I opened this year my CYA was close to 100, but thanks to a lot of rain this spring & only adding bleach instead of tabs, it's come down. Now I need to learn how to maintain it at the proper level.