Regular defomer ( 1-2 drops each time you fire) added at the input into the warm sap in the rear pan can help the entire operation. Then one or two drops near the draw off point (each time you fire ) can help draw the syrup from the center partitions. Making syrup in the center partitions can be for several reasons. as in:
Fresh sap start up.
next day start up
very hot fire only under center partitions.
AOF pushing fire to center of arch.
Probably others I havent thought of.
Keeping a good eye on the bubbles during start up can help keep from making syrup in the center. Defoamer can help but you really need to get the syrup moving out of the center partitions towards the draw off and set up the gradient.
Oh yea have a OH S..T bucket handy at all times too!
I have had it happen many times.
Regards,
Chris
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