I'm planning on installing my solar heater this weekend. Originally I was against laying it on the ground but then I read in one of the other posts that one of the benefits to the ground is it heats up under the panel during the day and that heat continues to transfer to the panel after the sun goes down. This won't happen with a rack. I am going to make the stone border around the pool wide enough so that the panel can lay on top of the stone.

If you go to the fafco website, I think they have plans for building a rack if anyone needs them.

Peter