It was a quiet sap day because of the vicious wind and cold temps. I doubt I'll be able to check on my second location until it gets above freezing because my car was sliding sideways when going both in and out along the roadway. Not good, especially since it's hilly.

As for propane tanks Galena, I can usually expect 10-12 hours of boiling time. It seems to me that the BTU capacity is reduced during the final one or two hours of boiling. Can't explain that, just my experience anyway. Perhaps it's my burner acting up.