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Thread: Do I have enough cfm

  1. #11
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    7,602

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    Is the 400 taps the total of all taps on that pump or is it just part of the total? If it's 400 total and your pump is giving you 25" or more 1 pump is all you need. However you need to have a tight system. The only air you want getting into the system is what you add about 30-40' before any ladder needing a boost using a small needle valve. Breezy introduced that method to me, it works great. The way I use the method is to add a needle valve at my farthest out ladder (I have 8 ladders, 4 on one system, 4 on another at 2 different bushes), the micro bubbles introduced help the sap climb the ladder. If the next ladder is close enough to the first ladder you may not need another needle valve. I add one that distance before every ladder, just in case but sometimes the ladders closer to the releaser can remain closed after the farthest out ladder got a controlled micro leak.
    Dave Klish about 1320 taps in '15, down to about 700 in '16, up to 850 for 2018?
    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.daveandjoanssugarhouse.com

  2. #12
    Join Date
    Jan 2016
    Location
    Eagle Mills, NY
    Posts
    5

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    Has anyone ever tried putting a low CFM, high vacuum pump ( like an HVAC evacuation pump) at the far end of a mainline to lower the pressure of the line without reversing the flow of the sap?

  3. #13
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    7,602

    Default

    If the system is relatively leak free, not needed. It would end up pulling in the wrong direction even at low CFM, the flow will follow the greater vacuum regardless of the CFM.
    Dave Klish about 1320 taps in '15, down to about 700 in '16, up to 850 for 2018?
    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.daveandjoanssugarhouse.com

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