Waste tank heater when empty?
Tried searching the forums but couldn't find my question.
I'm gearing up for camping over New Years Eve in northern Delaware, and the temperatures will be flirting with freezing. My black and gray tanks have heater pads stuck with adhesive to their undersides.
Is it safe to run the heaters if the tanks are empty? I don't know how warm they get, so I figured I'd better ask. I plan to be hooked to the sewer, but after dumping, is it safe to leave the heater pads running while the tanks are empty?
Many thanks!
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