My wife and I just bought a new home with an in-ground pool. Evidently it was not shut down properly last fall and now I have a mess. All the green is gone but I still have cloudy water to the point you can't see the bottom of the deep in. I can't vacuum it good without being able to see. The pool supply places has already cost me over $1,000.00. Can you all help me???? It is a 30,000 gal.