K.I.S.S. Keep It Simple, Stupid! Hahahahaha! That's completely directed at me and not in the least at you, except to compliment you on your design; that'd work just fine and come to think of it, I saw a tub design similar to that that used flat lengths of aluminum to secure the hail screen to the tub so the rodents couldn't chew the exposed plastic or otherwise slip out between the seams of the plastic/screen. That, and depending on the size of screen (I use 1/4" squares in my rack) it would hold the valve in place without the need for the brackets to secure them. Nicely done, Fila.![]()