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Thread: Reseting CVs After a Freeze

  1. #1
    Join Date
    Jan 2008
    Location
    Hopkinton, MA
    Posts
    1,778

    Default Reseting CVs After a Freeze

    I have now had to reset (tap back in) my CVs twice since first tapping. That's typical for me. It seems after each hard freeze (temps in teens), they are popping out enough to wet the outside bark and cause vac leaks.

    Is this typical? I've visited every tap 3 times in the last 10 days. I'm wondering if I'm a little soft on my initial tapping and resets and I'm making it too easy for them to be pushed out. I can't imagine the big, big producers revisiting every single tap after every deep freeze - or do they? I'll feel better of they do, but with my work schedule, I'm losing sap on the run after a cold snap.

    How far is the head of other people's CVs from the tree after tapping on a 1 3/4" to 2" hole?
    Woodville Maples
    www.woodvillemaples.com
    www.facebook.com/woodvillemaples
    Around 300 taps on tubing, 25+ on buckets if I put them out
    Mix of natural and mechanical vac, S3 Controller from Mountain Maple
    2x6 W.F. Mason with Phaneuf pans
    Deer Run 250 RO
    Ford F350
    6+ hives of bees (if they make it through the winters)
    Keeping the day job until I can start living the dream.

  2. #2
    Join Date
    Dec 2002
    Location
    Rock Creek, NC
    Posts
    5,807

    Default

    I used CV2 spouts since they were first introduced to the market and never had to reset them after a freeze. If you're using the CV adapters I have heard of those needing to be reset. I only used those until the CV2 came out and I did have to reset some of those but not very many and only after a hard freeze.
    Russ

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

    1930 Ford Model AA Doodlebug tractor
    A couple of Honda 4 wheelers
    Four chainsaws and no chickens!

  3. #3
    Join Date
    Jan 2008
    Location
    Hopkinton, MA
    Posts
    1,778

    Default

    I should have been more clear. I use the CV2s - the single piece tap. Thanks for the feedback.
    Woodville Maples
    www.woodvillemaples.com
    www.facebook.com/woodvillemaples
    Around 300 taps on tubing, 25+ on buckets if I put them out
    Mix of natural and mechanical vac, S3 Controller from Mountain Maple
    2x6 W.F. Mason with Phaneuf pans
    Deer Run 250 RO
    Ford F350
    6+ hives of bees (if they make it through the winters)
    Keeping the day job until I can start living the dream.

  4. #4
    Join Date
    Mar 2016
    Location
    Plymouth, CT
    Posts
    46

    Default

    I had this happen a few years ago, but this year I haven't had a tap pop out despite some cold snaps.

  5. #5
    Join Date
    Jan 2012
    Location
    Norwich NY
    Posts
    402

    Default

    I've used the cv2 since they came out. Install over 8,000 every year. Never had to reset any of them. I've had other problems with quality in manufacturing, but spout loosening in tree is not a problem I've experienced. From my experience, they actually grip the taphole better because they have less of a taper than other spouts and more of the polycarbonate makes contact with the wood.
    Neil

  6. #6
    Join Date
    Dec 2002
    Location
    Rock Creek, NC
    Posts
    5,807

    Default

    I had the same experience as Neil with them. I had some wimpy tap pulling tools that bent up like pretzels when pulling the CV2's. They stick in the tap hole and seal good. If there's a leak at the tap it's usually a bad tree not a loose tap.
    Russ

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

    1930 Ford Model AA Doodlebug tractor
    A couple of Honda 4 wheelers
    Four chainsaws and no chickens!

  7. #7
    Join Date
    May 2009
    Location
    UVM Proctor Maple Research Center, Underhill Ctr, VT
    Posts
    6,391

    Default

    We've had no problems with CV2 spout (polycarbonate) heaving. Used to have to reseat spouts a good bit back when we used nylon spouts. Are you tapping them in until the sound changes or some other method?
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    https://mapleresearch.org
    Timothy.Perkins@uvm.edu

  8. #8
    Join Date
    Jan 2008
    Location
    Hopkinton, MA
    Posts
    1,778

    Default

    I'm probably being too soft on the initial tap. I tap (click-click-click) until it turns to a (tunk-tunk) and the hammer bounces off it more. It's a mix of feel and sound for me. How far is the head of the tap from the outside bark give or take?
    Woodville Maples
    www.woodvillemaples.com
    www.facebook.com/woodvillemaples
    Around 300 taps on tubing, 25+ on buckets if I put them out
    Mix of natural and mechanical vac, S3 Controller from Mountain Maple
    2x6 W.F. Mason with Phaneuf pans
    Deer Run 250 RO
    Ford F350
    6+ hives of bees (if they make it through the winters)
    Keeping the day job until I can start living the dream.

  9. #9
    Join Date
    Dec 2013
    Location
    Stockbridge,Ma
    Posts
    285

    Default

    Don't worry about how far the head of the spout is from the bark. It means nothing. Bark thickness varies from tree to tree and in different locations on the same tree. It is not a very good determination of whether a tap is seated or not.
    First introduced to making maple syrup in 1969
    Making syrup every year since 1979
    3 x 10 oil fired
    Revolution syrup and max flue pan
    Almost 1300 taps total with 900 on high vacuum
    Bought first Marcland drawoff in 1997, still going strong.

  10. #10
    Join Date
    Apr 2013
    Location
    Northeast Vermont
    Posts
    649

    Default

    i seem to have some cv's i need to tap in after a hard freeze, but it seems that it's only the smaller trees that i need to do that on. however, it's a relatively small % of taps.
    Awfully thankful for an understanding wife!

    “The only place success comes before work is in the dictionary.”
    - Vincent “Vince” Lombardi

    Good luck to all!

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