Shower drain pipe: Is this normal?

[John and Jodi]

I'm not very handy so I haven't looked a lot under and around the bowels of our trailer, but recently I had an occasion to do so. Looking at my shower drain pipe I saw this:

It appears that the 1.5 inch drain line has collapsed. The shower still drains slowly and there's no leaks (yet?), but I'm a bit shocked. While the pipe from the shower pan is vertical, the connection to the gray tank(?) pipe appears to be at a 45 degree angle so that buying a new P Trap doesn't appear to be a good option unless I'm willing to re-plump.

Is this normal? I'm open for suggestions.

[Snackchaser]

Looks like they installed a flexible tube and left a twist in it.  You might try loosening a clamp and twisting the kink out.  Unfortunately that kink could be set and it seems like too a tight bend even for a replacement piece.  Oliver should address that despite the expired warranty, it was just a poor installation from the start.

Good luck, Geoff

Edited 5 hours ago by Snackchaser