Thanks.

For some reason it wasn't letting me reply in this thread but I figured it was a 5 post limit.

I wasn't home all day Tuesday so I wasn't able to test or anything.

After about 36 hours with no interaction my FC was at 17.5, down by about 4ppm. CC was less than 0.5, I didn't really want to use up all my chemicals by using the 0.2 steps.

Today, after about 18 hours I was down 1ppm FC from the 17.5 and still less than 0.5ppm CC so I decided to pull the cover and let it come down to normal. I swapped the filter to a brand new one to get a fresh start.

I may still have a slight thing going on but I wanted to float a little this weekend so I'll just watch it really closely and make sure the FC stays around 5 at the minimum.

I will probably shock it back to 20 or so next week when I know nobody will be in the pool.

Thanks for the plethora of good information all across this board. I read a lot before actually joining, but at some point I had to stop and start trying some of it out.

Hopefully one day I can talk the wife into a permanent pool.