Brandon,
Thanks for the great pics of your preheater and hood. Is the hood alum.?
What gauge is it ? From the pics of the preheater tubing I assume the cold sap enters from the elevated pipe and would exit from the ball valve. Just a question though what would keep the cold sap from taking the shortest and most direct route to the outlet. I have seen some of the dialog on maniflod vs. continous tube. Looks like you have a good set up there.
thanks
Mark
1700 Taps /1600 on Vac. 3x10 King evaporator
20 head Charolais cattle
8 head Lowline Angus
28 Miniature horses
90 hives honey bees
JD 4430 tractor