Do we need to winterize for a few days in Yellowstone?

In temperatures below freezing we have the water lines to our stock tanks running at a fast drip, sometimes 24-7, throughout the winter. never had one freeze up in 20 years. Livestock need water year round. Every ranch around us does the same.
Its an easy and simple solution rather than dead cows.
When trick tanks and ponds freeze over we need an alternate way to water livestock.