Cloudy water has many causes. I would recommend several things to do. Read Pool School at the top right of the page, buy a test kit, and for now take a sample of your water to a pool store for testing. You need to know if your water is balanced and if its not, how far its out of balance and what to do to get it balanced. Having know idea what the pH is makes for a hard start.
Your water might just need a clarifier/oxidizer (chlorine/shock), but then again it could be extremely out of balance, phosphates, metals (needing Metal Out), or unfiltered debris.