I started the process of de-winterizing today and quickly got stumped . The water pressure from my home supply removed all of the pink from all of the water facets inside and outside until clear water...
If only the hot water has limited pressure the tank may be filling or it may be in bypass from winterization. Also some units have restrictions in the hot water line. Also a hose gasket with a wire strainer is a good preventative measure to prevent debris from entering the unit. Jim