Beverley&Ken wrote:
Do you have a gravity fresh water fill, not the city water connection if different. The pump should be very close to the fresh water tank, which also close to the fill.
When I winterized my neighbours 5th wheel a few years ago, I had to search for the pump and winterizing line. She told me that she had always put 10 gallons of pink in the fresh water tank and pumped it through. Long story short. City water conection near the front under the bathroom, upper level, Gravity fill in the rear wall, fresh water tank under the floor just in front of the bumper, could't get any further away from kitchen or bathroom. The water pump was on the floor inside an end table between the recliner chairs. When all was quiet, you could hear the pump running. I had to dig through carpet and trim just to remove this end table and access the pump.
Ken
At least in my Alpine, which is the same year so should be more or less the same, there is no gravity fill and the pump is about 25ft from the fresh tank. Fresh tank is at the very rear, and pump is in the front basement behind the water works and a false wall.