I've just moved into my house and it has a 40,000+ gallon in ground vinyl pool.
I did the SLAM procedure starting last Friday night (17th) and last night (this morning, 24th) my FC did not drop overnight. YAY!! - I now know that there is no organic matter eating up the chlorine.
The pool remains cloudy though! Can't see deeper than 6" or so.
The PH is low <7.0, but would that really matter if I'm not dropping FC overnight? PH needs to be 7.7 for eye comfort and chlorine effectiveness, but we aren't swimming and the FC didn't drop overnight, so...
I got some soda ash and will up the PH today anyway because the water should be healthy. (note: checked the PH when the FC was around 5ppm)
I've got a sand filter and a 2.5 pump (I think).
Is it just going to take forever to clear up or should I be doing something to speed it up?