HI there, first pool and first post on the forum. I have a 21' round dough boy (approx. 10,000 gal) pool. Just setup and filled yesterday. I've got a Doughboy Power-Pak 1hp pump with Sequel-1 DE filter I think? I do have the Taylor test kit, but this a.m. tested with cheapo kit just to see the ph. It was above the highest reading I believe 8.5? I added a gallon of 10% chlorine this a.m. and I am on my way to get 3# (?) CYA. Am I gonna add the CYA straight into skimmer or tie in a sock? I'm wondering what to worry about first, ph, chlorine, or both? As for the PH what are my options? Thanks again for any info.