turbojimmy wrote:
That little screen at the bottom of the fitting is a vent. Seems to me the one in the pic should be installed somewhere where it's not exposed to the outside - like behind a door. It's not likely to let much junk in, but I wouldn't like the idea of having an exposed, 1/2" hole leading into my fresh water tank.
The vast majority of trailers have those gravity ports on the side with no protection. Yes, that is a 1/2" hose going right into the tank. Trailers stored outside will get a little to a lot of unclean water in the tank depending on wind and the amount of rain. The rest of the time only dust and small insects go in. I suggest that those that don't understand take a walk around a large dealership or show and gain some knowledge.