Ok I am on day 5 of my new pool. I was raising my TA and PH from previous days readings. In making a last adjustment to my PH from 7.2 to 7.5 my TA rose to 110 from 90. Is this an ok level? I have seen 70 to 90 and I have seen 100 to 150 as being safe levels. Also for an above ground vinyl pool is it important to test anything other then FC,CC, PH and TA? I plan to test CYA on Sunday Monday as I added stabilizer on this past Sunday.