Quote Originally Posted by bssage View Post
...As the saying goes opinions are like ___holes (everyone has one)....
Lol! Yes, and they all stink! Lol!

My guess would be that a clear cover would work best. It seems black would just be effective in heating the cover itself, while clear would allow the water to absorb more heat. Of course part of a solar cover's effectiveness comes from preventing evaporation which robs the water of heat; any color cover will do that.

Just my guess.