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Thread: 1/4" vs. 5/16" Spout under Vacuum

  1. #1
    Join Date
    Feb 2012
    Northern Vermont

    Default 1/4" vs. 5/16" Spout under Vacuum

    I was wondering if any research has been done with the staining and nonfunctional wood vs sap output with 1/4" and 5/16" spouts under high vacuum. Does a 1/4" spout allow for tapping smaller trees while still allowing enough functional wood over the years of tapping? Or is the cost per tap too high due to the lower sap yield from the smaller tap hole and smaller tree crown to make it cost effective. Thanks

  2. #2
    Join Date
    May 2002
    Upper Michigan

  3. #3
    Join Date
    Nov 2012
    Fayston Vermont


    I would keep 5/16
    2010- 11 Taps 2x3 Flat Pan
    2011- 22 Taps 2x3 Flat Pan
    2012- 38 Taps 2x3 Flat Pan- 4Gallons
    2013- 55 Taps 2x3 Flat Pan- 11 Gallons
    2014- 150 line and Vacuum New Leader 2x4 Drop Flue -22 gallons

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