Hello and welcome to the forums!
I am going to move your thread to the General Tech & Repair forum where there are other threads on winterizing. It should receive more attention there from members with winterizing experience.
I added Winterizing to the title
Great choice for "Living within my means" and camping for one...
2011 Salem Cruise Lite 20RBXL & 2011 Toyota Tundra Dbl Cab
Camping History: 45 Trips / 133 Nights / 3736 Miles
FRF Social Group: Campers of the West