I could use some help here. Our pool has been cloudy and not swimmable for nearly a month. After spending hundreds on contradictory Pool Store antics, I figured I would ask for help. I recently went into our pool store yet again with tons of questions. My CYA is at a zero, my free chlorine zero and total chlorine 2. They recommended more shock, and clear up. I told them that our pool was blue but cloudy and I could not see the bottom. I mentioned my concern that the FC was zero as it is the sanitizing agent and the CYA is also zero. I asked if I needed a stablizer but they said I did not. My FC will not hold. I am using 7 day chlorine tablets with CYA in it, and asked why it was registering at a zero. Where should I go from here?