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Thread: Max Length of 3/16 Natural Vacuum

  1. #11
    Join Date
    Aug 2015
    Location
    Pennsylvania
    Posts
    15

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    I have two lines each about 1000 ft with about 80 ft drop. At the top of the runs showed a vacuum of 25, tubes at the bottom were running full on warm days! 32 taps on one and 27 on the other.

  2. #12
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    9,869

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    My 3/16 have anywhere from 20 up to 33 on a line, with the longest at 750' long.
    Dave Klish about 1320 taps in '15, doing fewer each year, about 450 planned for 2020 (and after?)
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    added a gooseneck equipment trailer and F350 to tow it to haul more sap
    3x8 raised flue evaporator
    250 GPH converted to electric, RO by Ray Gingerich
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    http://s1041.photobucket.com/albums/...anssugarhouse/
    website: www.cnymaple.com

  3. #13
    Join Date
    Apr 2014
    Location
    Maine
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    3

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    What would be the draw back/problems with putting 50 taps on a single 3/16" natural gravity line 900' long with around 100' drop in elevation from the top of the line at the 1st tap to the storage tank at the bottom of the run?

  4. #14
    Join Date
    Jun 2014
    Location
    kenova, wv
    Posts
    19

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    Main draw back would be a hole in the line from a squirrel or a deer and you would lose vacuum on all of your taps instead of just 1/2.
    We had a line setup like this last year (52 taps) and ended up having to split it as the volume of sap overwhelmed the 3/16 on a good run. We split the line as close to even as possible and it worked much better.
    A&A 2x6 drop flue
    Stainless steam hood
    Smokey Lake bottler
    Electric Water Jacketed Bottler
    Home-built RO - double XLE 4040
    535 gallon haul tank mounted on dump trailer
    '97 f-250 sap hauler

    2014: 40 taps on buckets boiled on turkey fryer made 8 1/2 gallon
    2015: 100 taps on 3/16 gravity 17 gallons
    2016: 300 taps on 3/16 gravity, 3/4" mainline
    2017: 750 taps on 3/16

  5. #15
    Join Date
    May 2006
    Location
    New Hartford, N.Y.
    Posts
    1,949

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    Tim Wilmot, who first studied 3/16 tubing, never had more than 37 taps on a line. Remember, 3/16 carries a lot less volume of liquid than 5/16 because of the smaller diameter. You'll restrict the flow to some degree with that many. You might want to do 2 lines of 50.
    2014 Upgrades!: 24x40 sugarhouse & 30"x10' Lapierre welded pans, wood fired w/ forced draft, homemade hood & preheater
    400 taps- half on gravity 5/16, half on gravity 3/16
    Airablo R.O. machine - in the house basement!
    Ford F-350 4x4 sap gatherer
    An assortment of barrels, cage tanks & bulk tanks- with one operational for cooling/holding concentrate
    And a few puzzled neighbors...

    http://s606.photobucket.com/albums/t...uckethead1920/

  6. #16
    Join Date
    Feb 2012
    Location
    Birdsboro PA
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    1,334

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    Bucket Head is right.
    You'll basically have so much sap that it can't get out of its own way.
    first year 2012 50 taps late season made 2 1/2 gals.

    2013 2x6 homemade arch 180 taps. 20 Gals.

    2014 40 on 3/16 gravity 160 on buckets.

    http://omasranch.wix.com/omasmaple

  7. #17
    Join Date
    May 2011
    Location
    Chatham NH
    Posts
    1,151

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    Quote Originally Posted by psparr View Post
    Bucket Head is right.
    You'll basically have so much sap that it can't get out of its own way.
    I would try to keep it at around 25-30, as has been said, only so much sap can travel through a 3/16 line in a 12 hr period, if you got 2 gallons per tap trying to run through the line on 30 taps your looking at 60 gallons per day, 50 taps your talking 100 gallons, that's alot in a small line,

    I experimented with a 45 tap run and it did not perform as well gpt wise as a run with 10-15 taps, granted it was only a 2 year period but the 45 tap run only gave me at best 40 gallons per day , sometimes the smaller run would give 25 or more. I actually had a 5 tap run that would give 10 gallons on every run.
    Nate Hutchins
    Nate & Kate's Maple
    2018 1000 taps?
    20x36 sugarhouse
    CDL 600gph RO
    Franken evaporator, lapierre arch, smokylake pans and a leader hood with pre-heater.
    A wife and 2 kids.

  8. #18
    Join Date
    May 2011
    Location
    Chatham NH
    Posts
    1,151

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    I think you could run your 3/16ths line into a 5/16ths line after you attained your desired drop say 35ft after the last tap, the 5/16 line could act as a main line for 100 taps. And you wouldn't have to run a wire or go through alot of trouble. 500' of rigid 5/16 tubing is significantly cheaper (about 40.00$) than running 2 or 3, 3/16 lines down to your tank.
    Nate Hutchins
    Nate & Kate's Maple
    2018 1000 taps?
    20x36 sugarhouse
    CDL 600gph RO
    Franken evaporator, lapierre arch, smokylake pans and a leader hood with pre-heater.
    A wife and 2 kids.

  9. #19
    Join Date
    May 2006
    Location
    New Hartford, N.Y.
    Posts
    1,949

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    Yeah, I meant to say 25 per line, lol.
    2014 Upgrades!: 24x40 sugarhouse & 30"x10' Lapierre welded pans, wood fired w/ forced draft, homemade hood & preheater
    400 taps- half on gravity 5/16, half on gravity 3/16
    Airablo R.O. machine - in the house basement!
    Ford F-350 4x4 sap gatherer
    An assortment of barrels, cage tanks & bulk tanks- with one operational for cooling/holding concentrate
    And a few puzzled neighbors...

    http://s606.photobucket.com/albums/t...uckethead1920/

  10. #20
    Join Date
    Feb 2014
    Location
    Minnesota
    Posts
    56

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    We've got 7 lines between 600-900' with between 22-35 taps each line. Approx 125' drop to collection. Anxious to see what we get for results.

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