I've owned 3 new trailers at one time or another.
Each one developed a plumbing leak either the first time
out or very soon after.
Each time I was able to locate the fitting that needed
tightening and fix it myself but I've got
37 years of industrial maintenance and 45 years of
DIY experience to help with that.
Leaking plumbing on new RVs shouldn't be "normal"
but they are.
Unfortunately due to huge shipping costs the foreign makers
aren't able to compete with made in Indiana yet.
If that ever happens things WILL change!
I had a water pump hose blow completely off the fitting
on my first trailer. Thankfully we were there at the time
or it would have drained my water tank and burned
up the pump.
I don't always remember to do it but it's a good idea
to shut off the water at the spigot if you're on their
water OR shut off your water pump if on your own tank
any time you're going to be away from your RV.
I think it's especially important to shut off the water pump
when you're on the road.
We have a check list called--
B4 U move the trailer
It's laminated and I have a copy in the front
storage hatch where I stow things like lawn chairs
and ground mats and my hitch bars.
My wife has her copy inside where she takes care
of things like removing the glass turntable from
The last thing on her list is shut off the water pump.
Check lists can save you a LOT of grief!!
Just ask any pilot.
My current trailer leaked the first day.
Wife was walking by the bed in sock feet and found
the carpet sopping wet.
The water heater is under the bed in the pass thru
storage area on her side of the TT.
I opened up the hatch outside pulled out my stuff
and removed the flimsy panel FR had stuck beside
the hot water heater.
I found 2 fitting that should have been tightened with
a wrench to be only hand tight. One was dripping
the other was almost a stream.
I say they should have been tightened with a wrench
because they were hex shaped rather than "hand"
Apparently the guy at the factory stuck them on
there and then went for a smoke before getting
a pair of pliers or wrench and finishing the job.