Did that 5th Wheel have a "basement" as many do? With the piping past the water inlet enclosed. Many today even have heating in that basement.
A southern style FEMA trailer will most the plumbing and tanks exposed underneath is a different problem in a North Dakota winter.
A southern style FEMA trailer will most the plumbing and tanks exposed underneath is a different problem in a North Dakota winter.
My water hose ran up through a hole into an external port. When you opened the storage “basement” you also opened the water controls “panel.” I ran my hose under the unit but off the concrete pad. I boxed in and insulated the water source. I also took foam board remnants and boxed in the sewerage hose. I ran a small heater undeath the unit.
I also put insulation strips in the crevices of both slide outs.
It wasn’t difficult, but I wouldn’t want to winter in an RV with small children.