Harvesting maple tree sap using gravity, gathering tank, tubing
Maples on a steep hillside can be piped with
plastic tubing (coils on shoulders of crew) to a
main plastic line (black tubing feeding into
gathering tank). Gravity thus eliminates hanging
and emptying sap buckets. One worker holds a
red, gasoline powered tree tapping drill.
Published by Bromley & Company, Inc., Boston 15, Mass.
VT891–Color Photo by Robert B. Frazier