I forgot about pH reading high when FC > 10, but every time I've checked it lately it's been 7.0. I'll test again when the FC drops below 10.
As far as CH, I've got a big bucket of Cal-Hypo that I'll use to chlorinate for a while until it gets higher. What's a good CH number for fiberglass?
As far as shock level goes, the pool calculator (on my phone) says the normal levels should be 5 to 9, shock at 18, and high shock at 34 for CYA of 60. You mentioned 24ppm, am I doing something wrong on the calculator?
As for the high FC, yes I was using pucks. When I opened the pool the CYA was 0, so I started using the trichlor pucks. Then I went on vacation - I loaded the chlorinator with pucks but I guess it was set too high and the FC went way up. When I got home it was 24ppm, and CYA had risen from 30 to 60. Took all the pucks out and have been letting the FC go down for 4 days now and it's at 14ppm. My target for CYA was 50, so not too bad I suppose. Was going to start using bleach now, but I'll use cal hypo for a while and watch the CH level. After that, it's straight bleach.
Thank you so much for the input. I'm learning!