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Thread: Check Valve Spouts on Buckets?

  1. #1
    Join Date
    Feb 2022
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    Essex Junction, VT
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    153

    Default Check Valve Spouts on Buckets?

    Does anyone have information or experience on the benefit (or detriment) of using CV spouts with buckets or bags or tubing drops into buckets? I've read the Proctor study on their benefit for their intended use in tubing systems, but assume the study didn't include anything about buckets. As an aside, can anyone explain why it is recommended to drill level when tapping with CV spouts (per the Leader website)? And as an aside to the aside, does everyone drill at a slight angle when using non-CV spouts or spiles?

  2. #2
    Join Date
    Oct 2006
    Location
    Garrettsville,Ohio
    Posts
    603

    Default

    straight hole always no matter what spout you use. if a cv is at the "downhill angle the ball will always be in the back and useless. personally think the cv is a waste of money. For the same price buy a zap bac and use for 3+ years.
    Fred Ahrens
    330-206-1606
    Richards Maple Products
    Ohio CDL sales rep

    dont take life too serious, nobody gets out alive anyways

  3. #3
    Join Date
    Mar 2011
    Location
    Louisville, Kentucky
    Posts
    205

    Default

    I'm on buckets and agree there is little benefit to cv usage. This year I'm going to try zap bac with buckets and see how it works out. I'm using the stainless ring bucket holders.
    Dave Barker
    2014 30 taps, steam tray pans
    2015 ~100 taps, in conjunction with University of Louisville
    2x5 Smoky Lake hybrid pan
    2022 150 taps

  4. #4
    Join Date
    Jan 2017
    Location
    Williston, VT
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    586

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    If I were on buckets then I'd be all in on reusable SS spouts.
    Ken
    Ken & Sherry
    Williston, VT
    16x34 Sugarhouse
    1,500 taps on high vacuum, Electric Releaser & CDL Sap Lifter
    Wood-Fired Leader 30"x10' Vortex Arch & Max Raised Flue with Rev Syrup Pan & CDL1200 RO
    https://www.facebook.com/pumpkinhillmaple/

  5. #5
    Join Date
    May 2009
    Location
    UVM Proctor Maple Research Center, Underhill Ctr, VT
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    6,272

    Default

    Quote Originally Posted by fisheatingbagel View Post
    I'm on buckets and agree there is little benefit to cv usage. This year I'm going to try zap bac with buckets and see how it works out. I'm using the stainless ring bucket holders.
    Quote Originally Posted by fred View Post
    straight hole always no matter what spout you use. if a cv is at the "downhill angle the ball will always be in the back and useless. personally think the cv is a waste of money. For the same price buy a zap bac and use for 3+ years.
    The CV spout was developed for vacuum, and we've never tested them on gravity. Steve Childs (Cornell) did however. Results (for gravity production) can be found here.

    https://projects.sare.org/wp-content...ing-NESARE.pdf

    Drop/spout replacement ~100% improvement (that would be for the first yr only, it would drop 15-25% each year over the next few yrs until replaced again).
    CV use ~44% improvement

    As I recall, Zap Bac spouts (on gravity) did well the first year, ok the second, even less on the third. It should be noted that Steve would also run a stiff bristle brush through the Zap Bac spouts after use.

    Steve has much more detailed records on this that he's presented at meetings, but I can't seem to put my hands on them immediately.
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    https://mapleresearch.org
    Timothy.Perkins@uvm.edu

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