Vacuum transfer system increases sugar maple sap yield

Russell S. Walters

Treesearch

Vacuum transfer system increases sugar maple sap yield

Informally Refereed

Authors:

Russell S. Walters

Year:

1978

Type:

Research Note

Station:

Northern Research Station

Source:

Research Note NE-264. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4 p.

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Download (PDF 640 KB): https://research.fs.usda.gov/download/treesearch/11440.pdf

Abstract

Yields of sugar maple sap collected from three plastic pipeline systems by gravity, vacuum pump, and a vacuum pump with a transfer tank were compared during 2 years in northern Vermont. The transfer system yielded 27 percent more sap one year and 17 percent more the next year. Higher vacuum levels at the tapholes were observed in the transfer system.

Citation

Walters, Russell S. 1978. Vacuum transfer system increases sugar maple sap yield. Research Note NE-264. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4 p.