Cloudy- Cal-Hypo????

[mbar]

Ok, as long as there is no calcium showing in the water, I think it is dead algae - which does take a long time to filter out. You don't need calcium in a vinyl liner, but some fill water has calcium in it so just checking Your TA is ok at 180 ( a little high, but fine as long as there isn't high calcium). The other thing you can do to clear the pool in a hurry is to use a flocculant. I don't like to suggest it, because it is putting another chemical in the water, but it will work. Just follow the directions on the bottle. Make sure you let the pool still as long as it says, and then vacuum to waste. Good luck, if you have any other questions please ask Oh yeah, and a knee high is just as good as the skimmer sock.