I am having the same problem on my 2015 Cruiser 322rl. This is my third trailer and I had no problem finding the pump on my other 2, but I am stuck on this one. I've turned on the pump, hear the pump behind the wall in the front of the kitchen area/behind the bathroom. But I cannot find the access panel! And unless you want to dump 6-8 gallons of antifreeze into the fresh water tank, you do need to access the pump. Anyone else know where it is? I made a call into Cruiser and they were supposed to email me yesterday, no email so I'm stuck this weekend.