I my new to me Jayco has a leak when I hook up the water line for helping to clean the black tank while dumping that tank, and then I started smelling a musky smell afterwards. This trailer has the underbelly wrap and is slightly sagging in the area where the water line is. Couple questions, can the insulation material be purchased and how do I go about replacing it? The hose should be simple once I get to it.This is one of a couple things but have been able to fix most of the other things. One other thing, the pump is way louder than the previous one on my other trailer, should it be replaced? It pumps fine but sort of stutters a bit before shutting off. Thanks in advance for any help or suggestions any one may have.