So, are you really asking for assistance with your issue or just venting?
It's threads like these that make a person realize there is 3 sides to every story....
The chances that you bought a brand new camper from your local hometown RV manufacturer and it leaked (or "flooded" whatever that means since you haven't explained it at all) and they just flat out told you to p!ss up a rope is very very slim. Unless theres more to it.
The fact that it has "flooded" only 3x when you've presumably turned on the water more than 3x since you bought it and it sure as heck has rained more than 3 times in Portland also makes zero sense. I've never seen a leaky anything that was bad enough to cause a FLOOD that randomly repaired itself and broke again.
And since Northwoods told you to s uck it apparently, for whatever reason, what have you done to diagnose it.
Is it plumbing related, weather related, only floods when the dog is in it and the door locked (is the flood water yellow?)?
If it's weather related, have you hit it with a hose to see where it's leaking from, checked to make sure theres not a hole in the roof? Or is this a troll post?