While I heartily agree with the advice to wait and find as many issues as possible, a water leak is a bad thing. My 391 as well as another I heard of had cracked J-traps under the shower drain. Mine got fixed by unscrewing the drain cover and fixture. I put some short lumber under the shower floor to provide more support to the shower pan. No problems ever since. All MHs have issues. Take your house down the road with plastic plumbing and give it an earthquake every 10 or 20 minutes. Still it's fun so use the built up knowledge in this forum to make things better and save money.
2007 391TS UFO Chassis