Winterizing A Cabin

Kevin75

My father-in-law and I recently moved all the plumbing indoors in his cabin so that we can use it year round. We put a self-regulating heat tape on the water supply, so that's not giving us any problems. The only potential trouble spot is the shower drain. I'm wondering if anyone has any good ideas for keeping the shower drain warm, so we don't have to worry about putting antifreeze in the trap.

The cabin is on blocks, so air can flow freely underneath. Is heat-tape safe on PVC? Would that be enough? We're in Pennsylvania so the winters can be cold, but usually aren't too brutal.

Thanks in advance for any suggestions.

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neolitic

RV anti-freeze is cheap,
and it won't quit working
in an ice storm.

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(Sorry....it seems there really are dumb questions)