What do people do to prevent water pipes from freezing in the winter? I do understand that when the furnace is running the air ducts are located to provide necessary heat to the water pipes so freezing does not occur. However, if one follows conventional wisdom and turns off the propane tanks
while driving, how is water pipe freezing prevented while under tow?
 

Sincerely,

Pete
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Peter K. Kaiser
Thornhill, Ontario
http://members.home.com/pkaiser