Hi, I was needing some advice on lowering PH. After 5 partial drains my CYA is finally down to 70, FC 5, TA 110 and PH has been slighty increasing but has leveled off at 8.0. I've never used muratic acid so I'm a little nervous about my vinyl liner. I've seen various you tube video's where some people put in in all one spot and other scatter it around in the deep end. But I'm also curious about the dry acid PH down type and the proper way to put it in. Or do I need even need to be concerned about getting the PH down to 7.8 or so since it has seemed level off and has stayed the same for several days? I would appreciate any advice!!