Really starting to thaw out and run this afternoon here. Weird thing happened, I had a leak on a saddle fitting and the sap around that fitting was frozen solid and leaking out around the fitting making a large ice ball around it. I remember reading something Dr. Tim was mentioning in a different post about sap freezing under vacuum with a leak. Well it happened. There were several gallons of sap behind the ice jam. I had to turn off vacuum to that line and thaw the ice with my hand. Then fixed leak. And then that line really started running good. Always learning something.
Thanks for the info Dr Tim.

Mike
Summit Maple