James,
My AquaPro clogs also but not as frequently as yours. On mine there is a small hole for wiring input for a solar panel. If you aren't using a solar panel be sure to plug that hole. If you are using a solar panel, make sure that the wire that leads into the unit goes in below the hole....in other words make sure that the wire does not carry moisture with it into your feeder. Put a bend in it so gravity will keep the small moisture amounts out. After doing that on mine I reduced the clogging significantly....but it still does on occasions. It does not take very much moisture to foul them up.
