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Thread: 3/16 Runout

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  1. #1
    Join Date
    Jan 2018
    Location
    Hartford
    Posts
    47

    Default 3/16 Runout

    One of the locations I tap has a 100' run-out over thorns and swamp with very little slope below a 200' hill. I tap on top of the hill, then run the 3/16 to a tank near the road after the run-out. Overall, sort of a hockey stick profile. The overall drop is fine, but production here is noticeably less than other locations.

    Without the thorns and swamp I would be tempted to move the tank to avoid the frictional losses from the run-out.

    Other suggestions?

    Sincerely, stuck in the thorns.


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  2. #2
    Join Date
    Jan 2008
    Location
    Hopkinton, MA
    Posts
    1,790

    Default

    You could try running a mainline from the base of the slope to the tank. You'll get your vac from your slope and your sap still makes it to the tank. I do something similar in one setup I have.
    Woodville Maples
    www.woodvillemaples.com
    www.facebook.com/woodvillemaples
    Around 300 taps on tubing, 25+ on buckets if I put them out
    Mix of natural and mechanical vac, S3 Controller from Mountain Maple
    2x6 W.F. Mason with Phaneuf pans
    Deer Run 250 RO
    Ford F350
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  3. #3
    Join Date
    Apr 2019
    Location
    Nashville, MI
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    944

    Default

    Sean, I have something similar coming up for this year. Would you use a 1" line - in this instance from the 3/16's down to the tank?
    2004 - 2012 2x3 flat pan 25 to 60 taps
    2012 2x3 new divided pan w/draw off 55 taps
    2018 - didn't boil surgery - bought new evaporator
    2019 new SML 2x4 raised flue high output evap. 65 taps
    made 17 gal. syrup
    2020 - only put out 53 taps - made 16.25 ga.l syrup
    2021 - Didn't work out
    2022 - 25 taps on bags / 8 taps on 3/16's line - late start

  4. #4
    Join Date
    Jan 2008
    Location
    Hopkinton, MA
    Posts
    1,790

    Default

    Quote Originally Posted by Pdiamond View Post
    Sean, I have something similar coming up for this year. Would you use a 1" line - in this instance from the 3/16's down to the tank?
    The size of the mainline will be determined by the number of taps on it. Is this under vacuum? The max taps for 3/4" line is something like 200 or 250 taps (just guessing without looking it up). A lot of people go with 1" irregardless just to make sure enough vac gets out to the end, but if your taps are way below those levels, 3/4" should do it. I have to take everything down each spring so 3/4" is as big as I will go.

    This is a good resource I've been looking at recently:
    https://projects.sare.org/wp-content...ion-NESARE.pdf
    Woodville Maples
    www.woodvillemaples.com
    www.facebook.com/woodvillemaples
    Around 300 taps on tubing, 25+ on buckets if I put them out
    Mix of natural and mechanical vac, S3 Controller from Mountain Maple
    2x6 W.F. Mason with Phaneuf pans
    Deer Run 250 RO
    Ford F350
    6+ hives of bees (if they make it through the winters)
    Keeping the day job until I can start living the dream.

  5. #5
    Join Date
    Mar 2011
    Location
    Greenwood, Me
    Posts
    974

    Default

    Do you need slope on the mainline? I will have a similar layout on my new bush up in Maine.
    2024 - New Maine resident, 12X12 sugar shack under construction
    2019 - New 12X12 boiling pavilion
    2018 - New Mason 2X3 Hobby XL and homemade RO

  6. #6
    Join Date
    Jan 2008
    Location
    Hopkinton, MA
    Posts
    1,790

    Default

    Yes, 3% is enough to get the sap where it is going. You can go with a lower slope, but sags become a bigger issue. If you start the mainline from higher on the hill, you can improve your slope. With a 100' run, you only need to be 3' higher (minimum) on the high end.
    Woodville Maples
    www.woodvillemaples.com
    www.facebook.com/woodvillemaples
    Around 300 taps on tubing, 25+ on buckets if I put them out
    Mix of natural and mechanical vac, S3 Controller from Mountain Maple
    2x6 W.F. Mason with Phaneuf pans
    Deer Run 250 RO
    Ford F350
    6+ hives of bees (if they make it through the winters)
    Keeping the day job until I can start living the dream.

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