I'm a seasoned winter camper (Class C, previous 5th wheel) but now we have a residential fridge with our 310GK-R.
Temps in the 20's, wind chill will be 0 for the next 2 days due to 30 mph N winds.

Question:We shut off the ice maker per the manual.Should I do more for that expose blue water line under the slide going to Res fridge? I have some 1/4" foam tape I could deploy however its not heat tape though....

I think we're 'ready' for the next 48 hours.

I actually had to winter prep 2 Solitudes as our neighbors are in Lubbock for some medical procedure. They will be back in 5 days.

His rig
Disconnected the water source, turned the propane furnace on to 65 deg
Grey/Black water heating pads ON. (Might be some residual fluid in there even though they emptied their tanks before leaveing.

Our rig,
Filled up our freshly sanitized fresh water tank.
Furnace on (we're still living here!)
Disconnected from RV park water. No doubt it will freeze as its 2' above ground level, exposed to the N winds.
Stored OnTheGo soft water tank in the basement (basement and Nautilus is nice and toasty I might add....)
Fresh/grey/black water tank heaters on.