Help with pool

[tim665214]

This evening when I checked my pool, I didn't see even a trace of algea for the first time in a while.

I held my pool at 25 ppm all day yesterday, and this morning I tested, and saw that it held all night. Also my CC is almost 0.

I noticed my FC level tonight was 16.5. Which means I dropped about 8 ppm today. Does this seem right? My CYA level is between 80-90 and I live in N.E. Texas where the temperature today was 105. (No swimmers today) Hopefully I will not lose 8 ppm every day.

Is chlorine loss linear depending on level? For example, all other things equal, if I start out at 24 and lose down to 16 in a day, would I lose down to 2 if I started at 10 that day?

If anybody can offer any advice/tips I would really appreciate it. This has been a long battle that I believe I am at the end of, so I don't want to do anything that would cause me to have to start over.

Thanks

Tim