My 1976 31' center bath has one water line that crosses under the floor above the axles. My concern with a freeze up would be the tanks. The water heater, the pump, the lines, regulator, faucet bodies, and the tanks will add up in a hurry. Some people might not be capable of changing out the tanks.
The problem with starting to dig into an Airstream like mine, is the next thing is screwed up too.
My $ budget was the cost of my trailer when it was new, and it's not going to be enough.
Gary
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