FC: 14 (shocked a couple days ago)
CC: 0.4
PH: 7.1
CYA: 39
Alk: 110
CaL HRD: 228

as of last thursday....According to my ps223 the ph was 6.8 and the pool store said 7.1. I added some borax and some old ph increaser over a few days and it keeps testing 6.8ish.

FC was 8 today.....The issue is I can still abrely see the bottom of the shallow end. It doesn't seem to be clearing up much at all. I've been running the pump non stop for like 3 weeks and have shocked and kept the cc up for about 2 weeks (pool sat unpumped and unchemicalized for about 7 months ). Should it be taking this long? Could the low ph readings be trying to tell me something?

20K gallon gunite pool. thanks