Alignment of toilet cassette and bathroom

I don't understand how a misaligned cassette can lead to sewage seeping through the vehicle, leading to soiled bedding. I've heard of misalignment between the cassette and the underside of the WC bowl (in which case the sewage flows into the external cassette locker). So I'm mystified as to how any bedding can have been soiled - although of course I don't doubt your statement that it has. I just don't understand how. My only explanations are (i) that so much sewage flowed out of the WC that it filled the "moat" of the shower tray; didn't all go down the plug; and seeped through the adjacent wall to reach a cupboard containing bedding - but I readily acknowledge that my ignorance of the layout of your van may make that explanation nonsense; or (ii) you store bedding in the lavatory.

But whatever be the explanation, your dealer must of course rectify the problem under warranty. The issue of consequential loss is more complicated. What is reasonably foreseeable? It's reasonably foreseeable that overflowing sewage into the external locker could, if excessive, flood adjacent areas if it seeped laterally. But is it reasonably foreseeable that bedding would be soiled?  Without an explanation, it's hard to understand that.

Nevertheless, any decent dealer would not only fix the leak under warranty (as theiy are obliged to do) but would compensate you somehow for the consequential loss. I'd not surrender easily (assuming it wasn't your negligence which contributed).

Cymro

Thanks, Aberdav - what an awful experience.

There must have been a considerable abount of liquid, over a prolonged time, for it do have run across the wall of the bathroom floor-tray and for the side panels to have absorbed so much liquid by capillary action that the adjacent bedding was soiled.

That may well touch upon whether, had the seepage been noticed sooner, the damage might have been mitigated. But that doesn't reduce foreseeability. Your consequential, unrecovered losses are quantifiable and you might wish to contemplate a small claims action, albeit that you might get a better result by coaxing rather than scratching. At the very least, intimate the possiblity of legal recourse to your dealer. It clearly wasn't fit for purpose. As new owners you had the right to assume that the 2018 vehicle was in good order when the dealer sold it to you.
Cymro