I built my pool last summer then closed it up for the winter using a mesh cheapie cover. This is the first pool I have ever owned. The leaves weighted down the cover and it became almost impossible to clean them off so there were submerged leaves decomposing in the water. The center of the cover was maybe 2 feet below the water surface. Last weekend, I was able to scoop out the leaves and get the cover off and found that the water has a greenish tint. Water temp is at about 50 degrees. I added bleach to get the FC level up initially to about 7, then checked the pH which was low so I added soda ash and now it is at 7.5. The CYA is 30. Since then, I added more bleach to get the FC up to 12 but it was still greenish so I added more getting the FC up to 18. My CC is at 0.5, and the FC doesn't seem to be dropping. The water color is not changing. Over the winter, I had to pump out about 12 inches of water and then I just dropped it down another 2 inches so that means that I picked up about 2 feet of water in rain and snowmelt since I closed it so I'm sure I will need to add quite a bit of salt to get the SWG working but I'm a little baffled by the water color. Shouldn't the high FC levels be killing any algae? And shouldn't I see FC drop rather quickly being that there is plenty to consume it? Am I missing something here? I have a cartridge filter that was nice and clean when I started the pump last weekend.