Thanks Waterbear,

I'm not sure what order to go do things in now. Yesterday I posted our numbers in the "Testing and adjusting pool chemistry" section. There is also staining everywhere, and it responds to vitamin C, so it looks like we have metals. Here are the numbers.

Fc: 14.8
CC: 2.2
PH: below lowest level (when we did the Base demand test we needed 95 drops)
CYA: >100 (since 100 is the first mark, we are guessing ~110)
TA: 30-40

At first I thought we should get the PH up, but maybe we should only get it up a bit, get the chlorine down to 0, and get the stains out first. What do you think?

I don't think I can convince my parents to drain to get the CYA down, at least not yet. Is this high CYA possibly the result of using stabilized chlorine?

Thanks!