So we are still on the road with the vacuum leak. After all, it is a TC and don't they all have their quirks...
Re. warranty issue: yes, it sure is. But the effort in time and money to take it to the dealer is not worth it, and travelling with an American made RV in Europe has tought us to be self-reliant. I am sure the dealer would send a new pump if the old (still new) one turns out to be defective.
When we get back home I will see if I can provoke a water leak from the winterizing hose side. And then I will probably do some disassembly and cleaning and reassembly. It is a new camper, I need to get to know it inside out, right? ;-)
If that doesn't fix it, I need to find a local shop who is willing to take a look.
Thanks for all the feedback and I'll keep you posted
