Into the woods about 4:00 am again.  There is still sap in the 150 gallon storage tank.  But it was cold overnight.  And the pipes froze. Or maybe there are just plugged up with twigs.   Tried a small torch to thaw the pipes without luck.  Needed sap in the evaporator as it was running low.  Tried to pump from the storage tanks to the evaporator, but the pump did not work either.  And the tractor would not start.  Tomorrow is supposed to be Friday the 13th, not today.  Some days things just don’t go right.   By 1:00 pm we gave up and went back to the house.  It had already been a long day.