I got my TF-100 test kit in the mail today and went to town. I'm pretty sure I know what my next steps are supposed to be, but I figured I'd post here to make sure I'm not messing anything up.
pH low... 6.8? Whatever the lowest color is on the test tube. It might even have been lighter than that.
CYA 45 (right between 40 and 50 graduated lines)
Calcium 170 (which I gather is fine with my vinyl pool)
Ok, so what I want to do is:
1) Add 12lbs baking soda (per the Pool Calculator) to raise TA to 100.
2) After step 1 how long do I wait before testing pH?
3) Adjust pH as needed using Borax or soda ash
4) SLAM the pool. I only say this because swimming last night I felt a small-ish slippery area on one of the side walls, and I'd like to make absolutely sure that is destroyed before it can turn into anything.
...am I on the right track? The guy that opened our pool used shock, but I'll be using bleach as the CYA level seems pretty decent and I want to leave it there, right?