Sorry, Took a while to reply. (Darn job gets in the way) I forgot the details. My pool is vinyl lined. Keep in mind that I've been testing with test strips, so my numbers won't be accurate. My chlorine levels are nil. PH is at 7.2. TA is over 240. I'm guessing CH is hardness? That's at 400. My CYA reading is in the normal color range, but I forget the numbers.