from reading a few threads I believe the #1 test is the CYA. From what I've discerned the CYA/FC ratio is of utmost importance. Well maybe just in my case.
If my CYA is say 135, I believe I need to lower this first. I do not have any visible algae now, but it was visible in the warmer months. I scrubbed the walls for the first and last summer, I hope. Much work( Lowering my CYA will make managing my pool easier. I hope the board with tell me if I'm thinking correctly. Especially chem geek as we are friends, because we live in the same neighborhood. Actually we live in the same area. Thanks in advance for all replies / thoughts. I ordered test kit TF - 100. Has not arrived. Pool Store says it is 125. TJ