Super annoying :/ It's temp line that has frozen, so it would be nothing for them to heat the copper pipe on either end and just run a new temp. I'll then keep the water running. One guy has refused to touch it since it's a job already already underway by another contractor.
You may well have thought of this already, but if not, what about a heated cable? Ex:
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I use one of these near the drain at the end of my driveway when it ices up. IME it doesn't take a lot of heat to thaw enough to get water moving again. Good luck!
And still somehow have padauk dust on my shins. 
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