Open Loop

Open loop systems utilizing water wells and/or surface water. Pump and dump, pump and re-inject.

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  1. GEM

    Geothermal heat pump that dumps back into well

    GEM, May 8, 2012 ... 2 3 4
    Replies:
    61
    Views:
    37,772
    awp4412
    Jul 2, 2013
  2. eisensms

    Why doesn\'t everyone go with Open Loops?

    eisensms, Jan 16, 2009 ... 2 3
    Replies:
    46
    Views:
    27,752
    zach
    Oct 29, 2011
  3. thackery

    Risks of open loops systems?

    thackery, Jan 12, 2009 ... 2
    Replies:
    33
    Views:
    9,889
    HVAC Technician
    Mar 18, 2010
  4. abh3

    Monodrive XT vs. Cycle Stop Valve

    abh3, Mar 12, 2011 ... 2
    Replies:
    29
    Views:
    23,821
    Valveman
    Oct 7, 2019
  5. glenski_31

    How low can you (I) go? Water Flow that is

    glenski_31, Nov 14, 2012 ... 2
    Replies:
    29
    Views:
    12,883
    engineer
    Apr 24, 2013
  6. LT1Pat

    Open loop pump short cycling

    LT1Pat, Dec 25, 2010 ... 2
    Replies:
    27
    Views:
    21,335
    waterpirate
    Jul 24, 2013
  7. eisensms

    How much increased well pump usage with Geo?

    eisensms, Jan 15, 2009 ... 2
    Replies:
    24
    Views:
    11,415
    waterpirate
    Jan 7, 2011
  8. pfer10

    Unorthodox open loop pump.

    pfer10, Jan 24, 2015 ... 2
    Replies:
    23
    Views:
    5,617
    pfer10
    Feb 1, 2015
  9. geopete01

    2 pump system

    geopete01, Nov 12, 2015 ... 2
    Replies:
    21
    Views:
    7,746
    geopete01
    Dec 23, 2015
  10. hardchines
    Locked

    Flow control devices

    hardchines, Aug 13, 2009
    Replies:
    19
    Views:
    8,949
    Forum Admin
    Aug 16, 2009
  11. Highside

    Open Loop install question

    Highside, Jun 23, 2010
    Replies:
    18
    Views:
    8,338
    waterpirate
    Jul 2, 2010
  12. kc

    Well Water Quality hardness and sulfate ??? on open loop system

    kc, Aug 24, 2013
    Replies:
    16
    Views:
    12,609
    Valveman
    Nov 30, 2020
  13. ES - Stoneham MA

    Waterfurnace submersible pump connection (open Loop)

    ES - Stoneham MA, Feb 16, 2015
    Replies:
    16
    Views:
    4,695
    ES - Stoneham MA
    Feb 17, 2015
  14. sidebottom

    THE PUMP in pump and dump

    sidebottom, Jan 29, 2013
    Replies:
    16
    Views:
    7,520
    docjenser
    Feb 4, 2013
  15. milkweed

    discharge well erosion, need guidance

    milkweed, Feb 7, 2014
    Replies:
    15
    Views:
    11,026
    Palace GeoThermal
    Feb 25, 2014
  16. llaforest

    CSV (Cycle Stop Valve) or VSD (Variable Speed Drive)

    llaforest, Oct 3, 2013
    Replies:
    15
    Views:
    10,462
    engineer
    Oct 12, 2013
  17. glenski_31

    Submersible Well Pump Cycles per Day

    glenski_31, Nov 28, 2012
    Replies:
    13
    Views:
    9,375
    llaforest
    Oct 3, 2013
  18. mike3325

    Cheapest way to switch to geothermal

    mike3325, May 29, 2010
    Replies:
    13
    Views:
    9,576
    AMI Contracting
    Jun 30, 2011
  19. ciws14

    Open Loop back-flush

    ciws14, Nov 5, 2010
    Replies:
    12
    Views:
    12,096
    Mark Custis
    Oct 22, 2016
  20. Bostonceltics

    Well Gallons Per Minute

    Bostonceltics, Oct 20, 2016
    Replies:
    11
    Views:
    4,169
    docjenser
    Oct 23, 2016
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