Thanks so far for everyone's input. When my grandparents had it, they would just keep shocking it until it cleared up. Once the water was clear, their weekly process was to shock it every Sunday night or when it rained. I think that was their only source for chlorine in the pool I don't remember then using the tablets. So, I guess the chlorine from the shock would deminish over the week. Kinda of an up-down pattern in the chlorine levels. I would think that a steady amount of chlorine would be better. They used the same brand that I have been buying from Sam's and I have to say that their water was almost always clear. My sister followed the same routine when she ran it for about 5-6 years without much of a problem. They very rarely had a algae problem.

So, I have both my grandparents and my sister telling me that I need to add more shock and to keep shocking it until the pool clears. This goes along with what you all are telling me on here, but it also seems that I already have or I am developing a CYA problem. Is there another way to test the CYA besides the black dot test to make sure what level it is at?

Thanks again,

Ty