Any issues I may not know about if I use 1 mil mylar?
It's a lot cheaper than it's thicker brethren. Immediate use would be
as an inner glazing under Lowes version of Sun Tuff (should be
polycarbonate with UV filter).
I'd like to try one of the modified trickle collectors later. I see
Gary has a couple examples on his site that seem interesting. I like the
idea of the felt to slow and trickle the water...