I am trying to get rid of those give particles. I have to look real hard to see them but they are easily arm when my robot is in the pool because it's black on the sides. I've used super clarifier and it seems like they gathered together into a creamy stream on top of the water then into the skimmer basket. I cleaned the filter numerous times until the particles are harder to see now but I want to get rid of them. I'm getting a new light for the summer and I know the light will show it clearly.