Just upgraded my ball valve and NPT fittings for my cooler mash tun from 3/8 inch to 1/2 inch. Still have a false bottom with a 3/8 inch fitting and ordered a coupler to allow a 3/8 barb on the inside of the cooler so that I can attach hose from the valve to the FB. The outflow barb is standard...
I put the screens in my attic where it is super dry and quite warm now (in Alabama.) In a single layer, completely dry in 2-3 days. Any well insulated attic anywhere during the summer should do though.