Got the evaporator chugging along. Its just me today as my buddy had to work. I'm running the sap level rather high, as this size unit needs 2 people as we'll normally get a draw every 45min. With one person, its impossible to feed the fire, draw off, and filter, before getting another draw. So I run high and jut burn through the sap until I get some help. When doing it this way, our first draw will be 5+ gal.