If they did yours like they did mine, it's important.
The drain hose is mated to an ordinary domestic sink tailpiece. It's supposed to look like this.
That's fine, until it looks like this.
With the collar-nut left behind on the stem of the basket strainer.
Folks, I'm not at all exaggerating when I say that I grabbed it and ripped it clean off the sink with almost no effort whatsoever. This thing exists in the wide open space of the "galley module". What do you store in there? A loose bottle of booze rolling around in a seaway would have had no trouble exerting the same force.
And let's all remember that this connection is below the waterline a LOT of the time. (which is probably why the collar-nut corroded so badly)
I'm thinking I'll replace it with plastic.