I'm Peter from central (M)assachusetts (the M is optional). I've had a 27' round above ground pool for three years now. My wife and I use it every day if possible (I guess my son likes it too )
I've never had any issues with it until this season when the spider gasket in the top of the sand filter just blew out and was totally gone. I replaced it of course but then I had a green pool which I've cured but now my auto-chlorine unit is not putting enough chlorine into the pool. Anyway, it's almost back to normal just a little cloudy. I'll shock it again.
Glad to find this place. After reading what I have I'm beginning to doubt the triclor tab auto dispenser unit I use.