This is our second year having a pool, we moved into a house that had an existing pool. We had the liner replaced his year and was filled with pottable water hauled in. My pool is cloudy and I don't know what to do... All of my levels are good besides my chlorine...it says "0". I have a chlorine floater in my pool and also added liquid chlorine yesterday... Still 0. Do I add more chlorine? I just feel like I've added a ton!