Shrub, thats a good eye!!! I had an old farm disk I got for parts to fix my other one. Had lots of extras so I through them in. Worked perfect to get the diffusers about 10 inches off the ground.
Also, I thought about the screen but I left it open because I wired two outlets and in the winter I plan to plug in my hockey lights and a pump to flood the rink. I'll keep a close eye on varmints haha
Blue gill killer, the concrete sounds good and simple. If and when this needs replacing I'll probably do that.
