Ok so my pool was redone this year. Went from paint to plaster with a qaurtz by anthony & sylvan. I know they said at first the ph would rise from plaster dust. But we opened before memorial day. Its 2 months now and the ph still rises. Every morning when i check it is always 8.2. I lower it to 7.6 with muriatic acid and within a day or two its right back at 8.2. Heres this saturday test with tf100
7-11--15
Ph 7.8
Fc 2.5
Cc 0
Calcium h 250
Ta 90
Cya 30
7-11--15
Ph 7.8
Fc 2.5
Cc 0
Calcium h 250
Ta 90
Cya 30