So one booboo. I was swimming on Saturday. I've told everyone here that we kept our floating rubber duck chlorine dispense because my W thinks it is cute. So I picked up while swimming and was surprised that I smelt chlorine in it. So I opened to find two pucks, about 1/3rd dissolved, in the dispenser. So I dumped them out (I put two rocks in the bottom of the duck so he'd still float properly). So I will be retesting my CYA later this week.
However, I added a gallon of chlorine on Sunday night. I am getting better about knowing what my pool needs and have been testing every other day. Last night I tested and FC was at 8.5. So I am getting good life out of the chlorine. Since my target is 9 I left it as is, and will test again this evening. We do have a pretty sunny day, high 77, (water temp last night was 69...brrrr), so I'll see what effect that has.
I've also, now that the pool is clear, started running the pump only from 11pm-6am. After 3 weeks of 24x7. I will keep an eye on the pool. This has also meant that I need to skim the pool each night by hand. Which I am good with! Less junk in the filter.
Again, thanks to all the help here. I wouldn't be here if it wasn't for kimkats in particular. Great forum.
Newbies: Do not buck the advice. Get a proper test kit. Start using ONLY liquid chlorine. Your life will be much easier!