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Thread: Shurflo setups - mainline or manifold?

  1. #1
    Join Date
    Mar 2013
    Location
    Trenton Falls, NY
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    60

    Default Shurflo setups - mainline or manifold?

    I have about 75 taps on 3/16 and another 50 on 5/16. They are on two mainlines that converge centrally on a tank. 3/16 on the hill, east side, 5/16 on the flat southwestern side. All on gravity, or whatever vacuum the 3/16 creates. Each year the 3/16 runs great and the 5/16 is very sluggish.

    I am using 1" black plastic water line as a mainline. The saddles have gotten worn out and need to be replaced.

    I'm going to set up a vacuum with a Shurflo or two. Is there any consensus about which better - multiple lines converging onto a manifold next to the pump - or - using a traditional mainline with saddles which is connected to the pump?

    If I go the mainline route, I was going to switch to smaller diameter mainline, probably 1/2" (which should be plenty to handle that number of taps.)
    Smaller diameter mainline should promote better vacuum, correct?

    The end of the mainline will need to be sealed, correct?

    Thanks for any help!

  2. #2
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    9,112

    Default

    I find the DSD saddles easiest to get a good seal, but do not over tighten them, if one leaks just tighten it a little. To seal the far end I suggest you put a ball valve there. A barb style works best, but if you don't find a barbed 1/2" ball valve, use an IPS (iron pipe size, female threads) ball valve and a barb x MPT adapter (male pipe thread) Then as a safety a threaded plug is good. Put teflon thread tape or thread dope on all threaded fittings. Then after the season, use that valve to clean the line.
    Dave Klish about 1320 taps in '15, down to about 700 in '16, up to 1000 for 2019?
    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. #3
    Join Date
    Nov 2013
    Location
    Princeton, MA
    Posts
    312

    Default

    You probably aren't going to get any natural vacuum benefit from the smaller 1/2" mainline. The Shurflo pump should help a lot, especially on the flat side. Multiple lines is best if using 3/16 tubing but a properly set up mainline is probably better for the 5/16.

    Dave
    Mountain Maple farm
    2018: 140 taps, three of my programmable S3 diaphragm pump controllers
    New website:
    https://www.mountainmaplefarm.com
    https://www.facebook.com/MountainMapleFarm/

  4. #4
    Join Date
    Mar 2015
    Location
    sand lake, mi
    Posts
    43

    Default

    I'm bumping this thread as I have the same question and not sure it was really answered.
    ok, so we are putting in a small vac system for about 100 taps this year (trial run, new to vac), and I stumbled upon this video: https://www.youtube.com/watch?v=GNd2R964gU4&t=3s
    hopefully that displays! otherwise type in "Shurflo 4008 maple sap vacuum pump setup - SOLAR POWERED" into youtube and you'll find it. Anyway, the guy shows 7 lines (5/16) running into a manifold (like described earlier). However, our maple supplier told us that was a bad way to go, and said we needed 3/4" mainline with 5/16 laterals. Also, the guy who ran 7 lines into the manifold said the line should always be FULL whereas our supplier said there should always be space in the mainline, both saying that creates the best vacuum. So WHICH is correct?! I'm so confused! Should I take the 500ft of 3/4 tubing back and get all 5/16, or what?? We plan to use the Surflow 4008 pump.

    Thanks so much guys!

    Suzanne
    2014: 12 silver and red maples, metal barrel halved lengthwise set over large firepit- 2 gallons and lots of biter and paint primer in syrup.

    2015: 12 black and sugar, 45 silver/red - homemade evaporator of two metal barrels attached and 3 steam table pans cut in (10 gph)

    2016: aiming for 100 black maple plus 25 black walnut - homemade 2x5 steam table into evaporator to try out

  5. #5
    Join Date
    Mar 2010
    Location
    Suamico, WI
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    1,156

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    The video is of 3/16. Totally different than 5/16 and works completely different for completely different circumstances.
    custom made 2x7 intensofire
    With SL pans
    250 deer run
    300 3/16 (new 2016)
    500 sacks around the neighborhood

  6. #6
    Join Date
    Feb 2012
    Location
    Fond du Lac, Wisconsin
    Posts
    830

    Default

    Zandstrafarms, If you have good slope and plan to use conventional vac in the future with a dairy pump or similar I would go with a mainline and 5/16 laterals. If not and want to use the shurflo pump, I would use 3/16 into a manifold. Both systems can work very well if set up properly. The 3/16 is more forgiving of proper slope but less forgiving of leaks. I use 3 shurflo systems with 3/16 and am very happy with them.
    Smoky Lake 2x6 dropflu pans and hoods on homemade arch
    Smoky Lake 6 gallon water jacked bottler
    Concentric Exhaust
    250 Deer Run RO
    325 taps

  7. #7
    Join Date
    Mar 2015
    Location
    sand lake, mi
    Posts
    43

    Default

    why the manifold instead of the 3/4in mainline? So you are saying to just run all my laterals directly into a manifold?
    2014: 12 silver and red maples, metal barrel halved lengthwise set over large firepit- 2 gallons and lots of biter and paint primer in syrup.

    2015: 12 black and sugar, 45 silver/red - homemade evaporator of two metal barrels attached and 3 steam table pans cut in (10 gph)

    2016: aiming for 100 black maple plus 25 black walnut - homemade 2x5 steam table into evaporator to try out

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