I can't figure out why. Here are my numbers from today from my Taylor K-2006- I can't find anything wrong with them. This is an in-ground plaster pool with SWG:
CYA: somewhere around 40-50- like many others I struggle with this test
I guess the FC is a tad high. I have very rarely measured any CC in the pool- I add a non-chlorine shock occasionally (maybe every 2 months) just in case. Should I dial down the SWG to get the FC closer to 5? Would that cause her eyes to burn?