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Thread: 5/16 on semi flat land. Vac or no vac?

  1. #21
    Join Date
    Feb 2017
    Location
    eau claire
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    81

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    I found 2 stainless tanks I'm going to pick up this weekend. They are roughly 500 gallon bulk tanks where there is 2 covers on top. They only sit 2-3 ft high so that should help with pitch.
    2016 7 taps= 1-2 gallons of syrup
    2017 135 taps on bags/buckets =17 gallons syrup on block arch
    2018 75 taps on bags/buckets in new locations =50 gallons syrup (2 month season) on insulated barrel stove with auf and hobby r.o.
    2019 less taps on different ground for 1 month season. 20 gallons. Added 4x40 RO membrane and never finished 2x4 cooker.

    Creator and Mod of Wisconsin Maple Syrup Producers on FB

  2. #22
    Join Date
    Feb 2016
    Location
    Freetown, Ma
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    Chiming in on another 3/16 5/16 dilemma. I have 30 taps I wanted to put on shurflo and 3/16, 600' run. Slope is negative 1% or flat in bush, and 300 ft towards pump changes to positive 2%. I was going to changeover to 5/16 at elevation change, tight, straight, slight downward to pump 300' to cut down on friction with zero laterals. Would it be worth the changeover?

  3. #23
    Join Date
    May 2011
    Location
    Chatham NH
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    1,235

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    Raise your lateral to maintain 1% or better slope and run all 5/16. Avoid 3/16 . 3/16 is best suited for 10% slope or more you are going to get less sap with the 3/16 even with vac, keep the 5/16 tight and a nice slope to your shurflo pump, keep the pump wet and you will get the most sap your going to get, , 2- 15 tap lines would be better .
    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.

  4. #24
    Join Date
    Dec 2002
    Location
    Loudon NH
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    5,639

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    Quote Originally Posted by mike103 View Post
    Chiming in on another 3/16 5/16 dilemma. I have 30 taps I wanted to put on shurflo and 3/16, 600' run. Slope is negative 1% or flat in bush, and 300 ft towards pump changes to positive 2%. I was going to changeover to 5/16 at elevation change, tight, straight, slight downward to pump 300' to cut down on friction with zero laterals. Would it be worth the changeover?
    Yes it would be worth the change over. Scrap the 3/16" and use 5/16" for everything. Create as much artificial slope a possible by tapping the end trees away from the pump as high as you can reach and tap the ones closest to the pump as low as possible. The 3/16" creates a natural vacuum when there is good slope but won't do the same on flat ground. There will be less friction loss with 5/16" and you won't have to worry about fittings clogging up which is happening with 3/16" after the first season.

    If you can do so run a 3/4" mainline and then 5/16" laterals into that. If you go that route limit the number of taps per lateral to 5 but not more than 10, you'll get the best vacuum transfer and the most sap.
    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 250 Turbo RO machine
    SP-22 vacuum pump
    1930 Ford Model AA Doodlebug tractor
    1971 IH 454 52hp diesel tractor
    A couple of Honda 4 wheelers
    About a dozen chainsaws and no chickens

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