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Thread: Pump for DIY Electric Releaser

  1. #1
    Join Date
    Apr 2018
    Location
    Burton, OH
    Posts
    7

    Default Pump for DIY Electric Releaser

    I am building an electric releaser and don't know what size pump I need to pump the sap out under vacuum.
    I have a 1/3 HP submersible sump but that won't overcome the vacuum and minimal head of 4 feet. Without vacuum on the releaser the pump works fine.
    Any Help is greatly appreciated.


    Fisher Road Farm
    190 taps on vacuum
    130 on 5/16
    60 on 3/16
    DIY RO
    2x6 Leader

  2. #2
    Join Date
    Jan 2017
    Location
    Williston, VT
    Posts
    615

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    Are you using a high head submersible well pump?
    Ken & Sherry
    Williston, VT
    16x34 Sugarhouse
    1,500 taps on high vacuum, Electric Releaser & CDL Sap Lifter
    Wood-Fired Leader 30"x10' Vortex Arch & Max Raised Flue with Rev Syrup Pan & CDL1200 RO
    https://www.facebook.com/pumpkinhillmaple/

  3. #3
    Join Date
    Apr 2018
    Location
    Burton, OH
    Posts
    7

    Default

    No, I have a standard sump pump.

    Fisher Road Farm
    190 taps on vacuum
    130 on 5/16
    60 on 3/16
    DIY RO
    2x6 Leader

  4. #4
    Join Date
    Jan 2017
    Location
    Williston, VT
    Posts
    615

    Default

    I'm not surprised that it doesn't have the capacity to overtake the vacuum. My 1/2 hp extractor pump is rated for 175 feet of head.
    Ken
    Ken & Sherry
    Williston, VT
    16x34 Sugarhouse
    1,500 taps on high vacuum, Electric Releaser & CDL Sap Lifter
    Wood-Fired Leader 30"x10' Vortex Arch & Max Raised Flue with Rev Syrup Pan & CDL1200 RO
    https://www.facebook.com/pumpkinhillmaple/

  5. #5
    Join Date
    May 2010
    Location
    Berne N.Y.
    Posts
    198

    Default

    You will need a pump capable of ~33 feet of head to overcome high vacuum plus the 4 feet you are pumping up. Most sump pumps are designed to pump out of an 8 foot basement and on the ground so likely 15 or 20 feet of head max. A deep well pump is what most people use or something that will produce more than 40 or 50 feet of head to be safe. Quality pumps will give you a rating and pump curve to follow.
    2.5X10 HE
    600 RO
    Vac

  6. #6
    Join Date
    Apr 2018
    Location
    Burton, OH
    Posts
    7

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    Ken,
    Do you have a make and model on the pump?

    Fisher Road Farm
    190 taps on vacuum
    130 on 5/16
    60 on 3/16
    DIY RO
    2x6 Leader

  7. #7
    Join Date
    Apr 2018
    Location
    Burton, OH
    Posts
    7

    Default

    Quote Originally Posted by Shaun View Post
    You will need a pump capable of ~33 feet of head to overcome high vacuum plus the 4 feet you are pumping up. Most sump pumps are designed to pump out of an 8 foot basement and on the ground so likely 15 or 20 feet of head max. A deep well pump is what most people use or something that will produce more than 40 or 50 feet of head to be safe. Quality pumps will give you a rating and pump curve to follow.
    Thanks Shaun.

    Fisher Road Farm
    190 taps on vacuum
    130 on 5/16
    60 on 3/16
    DIY RO
    2x6 Leader

  8. #8
    Join Date
    May 2010
    Location
    Berne N.Y.
    Posts
    198

    Default

    When I was building my extractor I found this site to have a lot of useful information. https://www.aquascience.net/products...mersible-pumps
    2.5X10 HE
    600 RO
    Vac

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