leak

[SDVIKINGRON]

Greetings
Have developed a leak under the front part of my 2009 3400rl. I have now concluded the leak leak is coming from the front gray water tank. I assume that whatever insulation that is in there is totally soaked and will need to be replaced. Just was wondering if anyone has taken down the black corrugated plastic under belly and can tell me what to expect? What kind of insulation is in there?
Thanks, Ron

[1retired06]

Have done several times. On our 2010 it was pink fiberglass installation. On the 2015, solid sheet insulation, silver on one side. Pink needed replacement, solid sheet dried out ok. What you will find is a big mess of wiring and pvc runs. And for the leak, common causes are seam splits or leaks where the tank connects to the drain line.

[bigskyjimmy]

Yep I have done it a few times to replace waste valves and it is easy to take it down and put back up I am not sure of your 2009 but my 2012 and 2015 it is just the black plastic Sheet and behind that is silver foil insulation and like 1retired06 said alot of wiring etc..