I had the exact same issue with the 34.2 I had! Not sure if those lines under the couch are pressurized until the water valves for W/D are turned on.
I wondered if the movement of the slide flexes those hoses over time loosened them or if it was just a lack of QC.
You think the plumbing for W/D for the 34.2 is bad? It's easy compared to the 33.5. On the 33.5, the tolorence is so tight in the closet, the Splendide barely fit. Not to mention having to lift the W/D unit approx 3 feet into the closet!! When it's time to winterize, I will not have the room to reach in and close the valves. I'll just have to flush anti-freeze thru the unit.
It seems they gave no consideration to the process of installation or winterization.
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