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Thread: Better to run longer 3/16 or connect to mainline?

  1. #1
    Join Date
    Feb 2015
    Location
    Saratoga, NY
    Posts
    426

    Default Better to run longer 3/16 or connect to mainline?

    I'm starting to make my plans for some new tubing lines on a good portion of slope in our new sugar bush, nothing crazy just one or two more 30~ tap lines of 3/16 going down a long, steep slope.

    My question is, would there be any reason in terms of efficiency or flow rate to end my 3/16" line before my collection point and run it into a mainline? I realize I could connect multiple "laterals" into the mainline, however the collection point is further down hill so I am assuming that would only add to my natural vacuum if I continue to run the 3/16" down the rest of the way.

    Does this make sense? In other words, when using 3/16" is there a point at which the length of the tubing from the last tap is working against you?
    --
    2015: 8 bucket taps (7 red, 1 sugar) on DIY barrel evaporator
    2016: 13 taps (bucket and tube) on block arch and hotel pans
    2017: SAME
    2018: 25 taps on 2x3 flat pan and resurrected barrel arch
    2019: 25 taps...same setup plus DIY 3x150gpd RO filter
    2020: 50 taps, all buckets..."new" oil tank arch setup
    2021: 100 taps (50/50 buckets/3-16 tubing) on 2x4 divided pan
    2022: 150 taps (50/100 b/t) on 2x4 pan with sap warmer pan
    2023: SAME
    2024: 150 taps, added single-post 4x40 RO system

  2. #2
    Join Date
    May 2011
    Location
    River Falls, WI
    Posts
    831

    Default

    As long as it keeps going down hill it should be fine to just keep it in 3/16. Certainly simpler. Only reason I'd consider joining them into a mainline is if the slope becomes much more gradual before your tank.
    -Ryan


    Went off the deep end. Might be in over my head...

  3. #3
    Join Date
    Jan 2021
    Location
    Marston Qc
    Posts
    45

    Default

    When i did my installation i looked at few things.

    Cheaper to install only 3/16 no other type of tubing
    Easy to find leak
    Better natural vacuum

    I run between 35 and 40 taps per line and some tap are at 900’ from my tank

    Very happy with my installation

    Cheers
    Erick
    Erick
    Piper Hill Estate
    Marston,Qc.
    https://www.youtube.com/@piperhillestate2688/

  4. #4
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    11,566

    Default

    That said, 40 is really too many on a good sap flow day, divide it into 2 @ 20 taps for more sap total. Up to 30 is recommended, I like 20-25 better. On my old lease I had 1 line that was 1400' long. I'd use a mainline only if the slope moderates of if the distance calculates to cost less having a mainline. For the mainline remember all costs, saddle, support wire, tie wires and tubing cost with labor cost (even if you do it yourself, there is still a labor cost in valuable time.
    Last edited by maple flats; 04-23-2021 at 10:14 AM.
    Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
    Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
    Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
    After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.

  5. #5
    Join Date
    Feb 2015
    Location
    Saratoga, NY
    Posts
    426

    Default

    Great advice, all - this sort of confirms my hunch to go with 3/16 the full way down.
    --
    2015: 8 bucket taps (7 red, 1 sugar) on DIY barrel evaporator
    2016: 13 taps (bucket and tube) on block arch and hotel pans
    2017: SAME
    2018: 25 taps on 2x3 flat pan and resurrected barrel arch
    2019: 25 taps...same setup plus DIY 3x150gpd RO filter
    2020: 50 taps, all buckets..."new" oil tank arch setup
    2021: 100 taps (50/50 buckets/3-16 tubing) on 2x4 divided pan
    2022: 150 taps (50/100 b/t) on 2x4 pan with sap warmer pan
    2023: SAME
    2024: 150 taps, added single-post 4x40 RO system

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