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Thread: CV's and Dropline changing

  1. #21
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    I hear you. In my experience they come of hard and if you stretch then line the (maybe) they won't seal next season. With the CV1s research says there is minimal leaking and yes they could get disconnected (maybe) but once again they come off harder than you would expect as well. Anything seasonal is going to involve more labor or at least labor that is different than the norm, however that labor will be made up for by production.
    Last edited by unc23win; 02-10-2014 at 10:49 AM.
    Jared

  2. #22
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    May 2009
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    somerset county, pa
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    Has anybody heard anything about the CV-1 coming out in a clear version?
    Jeremy
    Buffalo Creek Sugar Camp
    Somerset County, PA
    22000 taps on vacuum and counting
    4x14 Leader Max pans oil fired with steam-away, 2-1000gph RO's, 2-4000gph RO's

  3. #23
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    Mar 2006
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    Lanark, ON
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    I've heard that Leader is looking at it but it will require a new mold as the poly spouts cool differently.
    4,600 Taps on vacuum
    9,400 gallons storage
    3 tower CDL RO
    3.5'x14' Lapierre Force 5
    Twitter & Instagram: @ennismaple
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  4. #24
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    Dec 2007
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    The February Maple Syrup Digest has data from testing at Cornell. It shows good results changing drops and taps verses CV's. There are different environmental circumstances though.
    136 on high vacuum for 2019
    A&A 2X8, raised flue evaporator
    hood, parallel flow pre heater and air over fire
    12X28 sugar shack

  5. #25
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    Mar 2005
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    Albion PA
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    Just changed 2/3 of our drops and spouts, still using std 5/16 black spouts and 30 inches of Max Flow for drops. Will see if there is a difference in sap quanity. If I do this again I am just going to cut off the old spout and use a new CV on the old drops. That's 2 years away. But the data seems to say even on gravity with older drop lines, the new CV out performs. I have an idea how I Can rinse the tubing using check valves, so that will be a trial in the future.
    Regards,
    Chris
    Casbohm Maple and Honey
    625 roadside taps + Neighbors bring some sap too!
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  6. #26
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    Quote Originally Posted by Gary R View Post
    The February Maple Syrup Digest has data from testing at Cornell.
    Actually, this was not really a Cornell Study, although it was written up by Mike Farrell as the science advisor. I believe it appeared in The Maple News (not the Maple Digest). These results are based upon some work done by a sugarmaker. The sites varied somewhat, and used different pumps in some cases. It is not what I would consider by any means to be a scientific study, and the interpretation of the results is therefore rather difficult, which makes conclusions based upon this work quite challenging.
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    https://mapleresearch.org
    Timothy.Perkins@uvm.edu

  7. #27
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    Sorry Dr. Perkins, but I read it last night in the Maple Syrup Digest. The article was by Steve Childs. There are some details missing but it looks like Cornell has been testing for a few years.
    136 on high vacuum for 2019
    A&A 2X8, raised flue evaporator
    hood, parallel flow pre heater and air over fire
    12X28 sugar shack

  8. #28
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    Quote Originally Posted by Gary R View Post
    Sorry Dr. Perkins, but I read it last night in the Maple Syrup Digest. The article was by Steve Childs. There are some details missing but it looks like Cornell has been testing for a few years.
    Ah....my mistake. I thought you were referring to the other one.
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    https://mapleresearch.org
    Timothy.Perkins@uvm.edu

  9. #29
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    Campton, NH
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    Check this study out by Stephen Childs of Cornell University. There are a number of scenarios changing drop lines, types of adapters, etc.

    http://maple.dnr.cornell.edu/pubs/20...h%20Report.pdf
    1,200 taps on USFS land, 3x8 King w/Steamaway. Lapierre RO.

  10. #30
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    Feb 2016
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    Uxbridge, Ontario
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    I had a quick question about replacing droplines: If we are on a 3-year rotation of replacing droplines, does it makes sense to replace the T as well as the dropline? We are using seasonal spouts.
    PCFarms - Producer of Maple Syrup and Distributor for H2O and DSD
    2019 - 30,300 taps
    2020 - 34,000 taps
    2021 - 38,000 Maple taps, 1000 birch taps

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