today's project is to make some filters/bug screens for my cisterns. I do have a bit of a skeeter problem, and I attribute this in part to the fact that the tops of the cisterns are open (there's an air gap between the downspouts and the cisterns) and the PO of the place simply shoved some aluminum screen in there to filter out the pine needles and keep the bugs out. They're not really anchored well though so I'm going to make some rings out of Masonite and screw them down with a little silicone to truly bug-proof them.
Here's the question, though - I was thinking that skeeters could probably get through a standard piece of window screen, so I went to REI and bought a cheap little single person mosquito tent thing thinking i would cut it up and sandwich a piece of that material between two pieces of aluminum window screen for strength. Here I unpack it and the holes in the mosquito net aren't any smaller than just the screen alone. Will this be adequate, or should I look for something finer? Cheesecloth maybe?