I would like a plumbing diagram for my 2015 369RL to assist in knowing where and how to blow out my plumbing for winterizing. I called Customer Service and JD said engineering told him there are no diagrams available. I find it hard to believe an RV can be assembled with out a plumbing diagram. Just make a copy and e-mail it to me. How hard can that be. For that matter how about a copy of the dealers service manual. Some of us are hours away from our dealers and we shouldn't have to take it to the dealer for every little thing to get it fixed.