This is our 2nd year with pool. Last year we had green water when the pool was open. It was covered with tarp by earlier owner and opened with lots of dirt, leaves and what not. We slammed the pool as recommended by one of our friend and finally we had crystal clear water. We made solid cover and closed the pool thinking this year we will have clear water when we open. That is what everyone told us. But unfortunately the water was very cloudy not green as last year. We tested water and CYA is almost none. On my TFT test kit its below 20 as that is limit on the test. So I started slamming the pool FC 10 with bleach . Still no results.
My question :
Is it normal to open pool with cloudy water? Any particular care we need to take while closing the pool?
Do we have to replace the water ?