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Thread: bit size

  1. #1
    Join Date
    Mar 2011
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    Winfield, Iowa
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    Default bit size

    Hi Everyone,
    Might be a strange question but here it is: What size tapping bit should I use for the Leader 5/16" Clear Check Valve spout?

    I ask because last year I used a 19/64" drill bit with the Lapierre 5/16" seasonal spout due to posts that I read and the tap hole using that bit seems a bit tight for the Leader CV spout. Thanks, Ted
    Last edited by tbear; 02-14-2018 at 08:15 AM.

  2. #2
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    Feb 2012
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    Fond du Lac, Wisconsin
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    Default

    Use a 5/16.

  3. #3
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    Winfield, Iowa
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    Default

    Thanks Super Sapper, will do. Ted

  4. #4
    Join Date
    Mar 2015
    Location
    Wind Lake, WI
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    Default

    ^^ What SS said.

    As a potential anecdote that may be useful; I noticed last year that CV spiles in box elders didn't work well with a 5/16 bit. Too large of hole and/or the wood just is too soft - lots of sap running down the tree. Redrilled and went back to some new 7/16" spiles I had around after tapping a couple. Hoping the 19/64" bit I bought for this season does the job so I can use CVs on the box elders too.
    2015 - Small operation. 25 buckets. One excited 5 year old and one 35 year old that feels 5 again.
    2016 - One year older. New Homemade 2x4 Arch, Smoky Lake Pan and looking at 52 maples, 17 box elders and 2 walnut trees.
    2017 - Shurflo 4008 hooked to 42 stingy silver maples and a few Norways. A couple buckets on sugars and norways. 10 box elders.
    2018 - Adding a few more taps.
    42.82N

  5. #5
    Join Date
    Dec 2002
    Location
    Loudon NH
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    Default

    Quote Originally Posted by littleTapper View Post
    ^^ What SS said.

    As a potential anecdote that may be useful; I noticed last year that CV spiles in box elders didn't work well with a 5/16 bit. Too large of hole and/or the wood just is too soft - lots of sap running down the tree. Redrilled and went back to some new 7/16" spiles I had around after tapping a couple. Hoping the 19/64" bit I bought for this season does the job so I can use CVs on the box elders too.
    Box elder wood is quite a bit softer than even red maple which is sometimes called soft maple. I tap mostly red maples and use the 5/16" bit with CV2 spouts and they fit good without leaking or splitting the tree.
    Russ

    "Red Roof Maples" Where the term "boiling soda" was first introduced to the maple producing world!

    Algier 2x6 evaporator, W F Mason arch
    Lapierre 125gph RO machine
    SP 22 vacuum pump
    1930 Ford Model AA Doodlebug tractor Sap Hauler

    http://s250.photobucket.com/albums/gg247/russhd1997/

  6. #6
    Join Date
    Mar 2015
    Location
    Wind Lake, WI
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    Default

    Yup, even silvers (what I mostly have) work perfect with 5/16" bit and CV2s. And, it was amazing what vacuum did to help my production off those trees. Night and day difference.
    2015 - Small operation. 25 buckets. One excited 5 year old and one 35 year old that feels 5 again.
    2016 - One year older. New Homemade 2x4 Arch, Smoky Lake Pan and looking at 52 maples, 17 box elders and 2 walnut trees.
    2017 - Shurflo 4008 hooked to 42 stingy silver maples and a few Norways. A couple buckets on sugars and norways. 10 box elders.
    2018 - Adding a few more taps.
    42.82N

  7. #7
    Join Date
    Mar 2011
    Location
    Kent City, Michigan
    Posts
    29

    Default

    Where are you finding the 19/64" drill bits? I have the leakage problem too with my spiles and I read that that really is the appropriate size bit for the spiles. But I am having trouble locating one. I hate to see it running down the side of the tree.

  8. #8
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    Mar 2008
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    Lake County Ohio
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    John Allin

    14x18 Timber Frame Sugar House 2009
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    Leader Steam Hood 2014
    Leader Clear Filter Press 2015
    Leader Revolution Pan and SS Pre-Heater 2016
    06' gator hpx to collect wood & sap
    14' Ski-Doo Tundra for winter work in the woods
    Great Family 3 grown kids+spouses and 7 grand kids who like the woods
    7th Gen Canadian - Raised in Chardon Ohio - Maple Capital of the World !!

  9. #9
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    Mar 2011
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    Kent City, Michigan
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    Quote Originally Posted by johnallin View Post
    Thank you!!

  10. #10
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    May 2009
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    UVM Proctor Maple Research Center, Underhill Ctr, VT
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    Default

    Quote Originally Posted by Shirlsaw63 View Post
    I have the leakage problem too with my spiles and I read that that really is the appropriate size bit for the spiles.
    You should use the bit size recommended by the company selling the spout for best results. A 19/64" bit for a 19/64" spout, a 5/16" bit/spout, a 1/4" bit/spout, etc. Mixing and matching doesn't always work so well. Making a mistake in tapping is the first place you can lose sap (and money).
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    Timothy.Perkins@uvm.edu

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