Okay, my solar panels are about 7 years old and still going strong with no leaks. But..... this year they are just not raising the temp as much as usual. Flow is good, run them seperately off an intex 2500gpm pump. I think the problem is that they are no longer the dark black that they once were. I want to paint them but don't know what type of paint to buy. Bought the Fusion, but the wind won't quit blowing long enough to spray them. Is there something that can be rollled on that will work?