Thanks for all the info, poolmom!frustratedpoolmom said:A TA level of 70 is fine and can be left as is.
If the PH doesn't go up (it may go up on it's own) in a week or so, add some Borax, to raise it to 7.6.
Retest the CH, but understand it's a tricky test to perform correctly. You MUST swirl for 20-30 second between EACH drop. The test should take a long time to do correctly. If 30 is accurate, then you may want to increase it. It's not critical, some time next week is fine.
However, isn't the pool painted? I'm pretty sure with painted plaster the level doesn't have to be as high as normal plaster. I think you can get by with 100-150ppm on the CH.
The CYA - a Nylon probably isn't the best choice for that much CYA - I would use an old tube sock next time, hopefully your's won't break. If you notice the CYA escaping thru the nylon, just be sure to brush the pool where it's dissolving. Remember to wait a week to retest - and 24 hours after the CYA has dissolved from the sock, assume your level is whatever you targeted. So if you targeted 50ppm, that's now your level, and then you start keeping your FC according to the CYA chart, with 50 as your level. Make sense?
I double-socked it in the nylon hose, but can put that inside an old tube sock easily enough for extra protection.
The good news is... the pool made the party deadline! YAY! It looks lovely. (I'll try to take some pictures later.) Thanks to all of you.
Now, if I can just get the house and patio there, too. LOL