I have a mess and need help please

gotsmart wrote:
I'm still working on "why is there an AC outlet right next to the pump?" :h

Okay here's the tea:
I did not buy a 3 way or even a 2 way fridge. I could not see spending the money on it.
I bought an Igloo dorm size fridge that was supposed to be able to run off the marine batteries while in transit. The outlet was put there as part of that set up as I understand it.
Unfortunately, that never came to fruition and I'm not sure why it's there now as my fridge won't run off just the batteries like I wanted while in transit. It was supposed to be connected to an inverter with an automatic transfer switch but that never happened and I'm not sure how to do it.
I'm so leary of hiring another contractor because I'm pretty convinced 99.9% of them are dirt bag crooks. I was hoping to get some excellent guidance from y'all here in order to do it myself!
I think the materials used for the plumbing system are cheap and just a matter of time before it pops another leak somewhere.
Since getting my trailer back from the 2nd crooked contractor, now my previously working under cabinet light and light in my shower isn't working any longer. They are both on the same circuit and I'm fearful that I'm going to have to pull the wall behind the sink to access the wiring. I'm going to pull those fixtures as a first step to see if they are even connected (after shutting off the breaker first, of course).
I also have two non-working, non-powered speakers that were supposed to be connected to an amp for my home dock for my SIRIUS satellite radio. That didn't happen either but is the least of my problems with this project.
I think you've all given me some great ideas to work with to repair or replace the plumbing. I'm going to start there as I really don't want a mold problem.
Question: since I dried out the sub flooring where the original leak occurred and flooded my trailer, will that ensure no mold growth now?