Quote:
Originally Posted by SteveJ
Probably a much bigger concern is any outside plumbing tubing and fixtures. They will freeze before the tank.
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Right. The tank has plenty of expansion room and is likely not brittle. It only takes a few minutes to blow out the pipes and take any removable fixtures indoors.
If you want to keep using the water system in freezing temperatures, that can be done, but is a much bigger project.