Tested pool this morning after adding the bleach last night and strips showed it at 0 again. (If i dip a strip in pure bleach it shows color). Added more chlorine this am due to running out of bleach(will go buy more today). As soon as I dumped it around pool, I stuck strip in(for my own peace of mind) and it did show high chlorine level. It's going to be hot all week here in NE PA. I have been adding algecide as instructed on bottle, and I've never had a slimy liner. Can't find one with polyquat 60%(however you spell it) in it around here.

I have been running new sand filter all night. "I think" that it's less cloudy, but it could be just my imagination. Going to vacuum again today. When I did yesterday there was alot of what looked grey going into filter.

POOL DOC Chemicals ADDED:
32oz Metal out beginning of june
32oz Metal control middle june
32 oz Pool stain treat. (Used 16oz approx almost 3 wks ago (cleared water) got to swim finally for about 2 wks and then used other 16oz approx. on 6/30 when water turned brown. It did not clear this time with procuct.
16oz pool breeze metal treat on approx 7/2 water turned from brown to mint green on7/3, then just cloudy white on 7/4. This is where I am now trying to add bleach to get chlorine reading.

I know, a chemical bath.