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Thread: Max taps for 3/4" wet line

  1. #1
    Join Date
    Sep 2014
    Location
    North Guilford CT
    Posts
    10

    Default Max taps for 3/4" wet line

    Quick question for you guys. Roughly what would be the maximum number of taps for a 3/4" wet line with a 1" dry line above it?

  2. #2
    Join Date
    Apr 2019
    Location
    Nashville, MI
    Posts
    765

    Default

    From most of what I have read on this forum I would say no more than 200 taps. More than that on a heavy flow day may overload the line. Question though, if you are running a 1" dry line why not just run a 1" wet line.
    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

  3. #3
    Join Date
    Feb 2016
    Location
    Peru, Maine
    Posts
    900

    Default

    It depends on the slope of the mainline. For 3/4" mainline, Cornell's Maple tubing and vacuum notebook says:

    <5% slope = 400 taps
    5-10% slope = 300-500 taps
    >10% slope = 300-600

    So, around 400 is a good average number if you don't know your slopes.

    With that said, our mainline are all 1”, with 130-250 taps on them. Minimal cost to over size and not have to worry about high flow day issues on the 230 tap line. We did use some 3/4” line on a branch from the 1” to pick up around 60 taps on a side hill.
    Last edited by mainebackswoodssyrup; 01-26-2023 at 09:30 AM.
    270 taps on 2 Shurflo's, 31 taps on 3/16" and 229 taps on gravity. 530 in all
    Mountain Maple S3 controller for 145 of the vacuum taps
    2x6 Darveau Mystique Oil Fired Evaporator w/ Smoky Lake Simplicity Auto Draw
    Wesfab 7” filter press
    IBC totes in the woods, 800 Gallon CDL bulk tank at the shack

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