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Thread: Deep well Jet pump...no pressure in pump.

  1. #1
    DIY Junior Member BuckeyeGuy's Avatar
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    Oct 2011
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    Default Deep well Jet pump...no pressure in pump.

    Type of pump?
    Submersible___No_____
    Two wire (no control)________
    Three wire (control box)______
    Wire Size_________ Wire Length________
    or
    Jet Pump (above ground)____X_____
    One or two pipes down the well__2__

    Size of Pump?
    Motor Horsepower?________1/2__
    Pump Model #______________
    Date Pump Installed___9-29-11_______

    Pumping from?
    Cistern tank___________
    Pond, lake, river________
    Water Well________X____
    Depth of well__________
    Depth to water_________
    Pump Setting__________
    Pipe Size___1/14, 1______"
    Drop Pipe Material
    PVC________
    Steel_______
    Poly___X_____

    Well Recovery Rate_______gpm
    Well Casing Diameter____4___
    Rock Well__________ Sand Well__________ Other______________
    Date Well Drilled____________

    Well Casing Material
    PVC________ Steel_____X____ Other_________


    Pressure Tank?
    Bladder or diaphragm tank (one pipe to tank)____X______
    Size or model of tank____________
    Air charge in top of tank, with pump off and water drained____________PSI
    (check with car tire gauge)
    or
    Plain Hydro Pneumatic tank (two pipes to tank, one in and one out)_________
    Size of tank________________

    Pressure Switch Setting?
    On 30, off 50 ________
    On 40, off 60_________
    Other_______________

    Pump Control Method?
    Cycle Stop Valve model #_________
    Variable speed control #__________
    Pump Start Relay (sprinkler timer, no tank)__________
    Manually turned on and off____________

    Pump Protection
    Cycle Sensor_________
    Pumptec_____________
    Low pressure cutoff switch (lever on side)__________
    Other_______________

    Filters or Softeners___Not in Use___________
    Before or after pressure tank_______
    Type of filter___________________
    Bypass available________________

    Water Used For?
    House Use___X____ Number of baths___2____ Number of People__8______
    High Flow Showers_______gpm?
    Plus/Or
    Irrigation with timers________
    Irrigation with hoses________
    Heat Pump______gpm?


    Problems Experienced
    No Water_____X____________
    Water only part time________
    Water at all times but weak_____
    Air in water_______________
    Pressure surging___________
    Water Hammer (noise)______
    Too Much pressure_________
    Other____________________


    Pump makes clicking or buzzing sounds________
    No Sounds______________
    Pressure gauge reading________psi
    Other____________________________________

    Do you have, and know how to use
    an Ampmeter and Voltmeter__________________

    Describe Problem__________________________.....


    Came home Thursday afternoon with no water
    Pump motor was trying to run.
    Removed pump and motor, removed pump from motor, motor ran, pump was froze up.
    Purchased new pump at Lowes and installed same as old pump.
    Unable to prime pump, pulled injector from well and replaced foot valve.
    Pump seems to be primed...but will not build up pressure.
    Installed injector that came with pump into the well.
    Pump seems to be primed...but will not build up pressure.
    Shut the valve between pump and pressure tank.
    Removed pressure gauge and 1" reducer from tee on top of pump...turned power on to pump.
    Water slowly pumped out of top of pump...then increases to about an 8-10 inch column.
    Shut off pump, check pump level (full) replaced pressure gauge and turn on pump.
    Pressure will not build up in pump to register on gauge or trip the pressure switch.
    Remove pressure gauge and water flows from the pump.
    Removed pressure gauge and pressure switch to check for dirt (clean).
    Thought maybe there was air in the line still...so I have repeated this process several times.
    Pump motor will only run for about a minute before it trips an internal overload and shuts down.

    I think the pressure tank is bad as well...but I wanted to get the pump primed and running before I tried repairing or replacing it.

    Any help would be appreciated.

  2. #2
    DIYer, not in the trades LLigetfa's Avatar
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    Location
    NW Ontario, Canada
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    Default

    Pump motor should run for more than a minute, water or no water. Was the old pump wired for 120V or 240V? Are you sure you wired up the new pump correctly?

  3. #3
    DIY Junior Member BuckeyeGuy's Avatar
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    Default

    Thanks, The pump is wired for 120...switch under the cover was set to the proper setting also.

  4. #4
    DIY Senior Member thassler's Avatar
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    Dec 2006
    Location
    Tennessee
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    Default

    Leak in one of the drop pipes??
    TreyH
    ** Not a professional - only a DIYr **

  5. #5
    Porky Cutter,MGWC Porky's Avatar
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    Location
    Virginia Beach, VA
    Posts
    727

    Default

    First, you have an electrical problem! The pump overload should not shut off the pump. Check the wiring hookup for the motor to the source, be sure the motor's wired for the proper voltage. Next, when installing the new pump debris may have become lodged in the nozzle of the jet assembly in the well. You may have to remove the jet assembly and disassemble the venturi and then the nozzle assembly. . . clean the debris from the 1/4" hole in the nozzle and then replace everything being sure that nothing plugs the nozzle. Lastly, sometimes when installing a new check valve the nipple keeps the check valve from opening enough to allow water to enter.
    Porky Cutter, MGWC
    (Master Ground Water Consultant)

  6. #6
    DIY Junior Member BuckeyeGuy's Avatar
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    Ohio
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    Default

    Thanks for the replys...
    I have seen no obvious leaks in the drop pipes.
    The wiring, is what was used with the old pump...there is a switch on the new pump to select either 115 or 230 volts. I switched it to 115 as that is what the old pump was wired to.
    One of the steps was to replace the old foot valve and also installed the injector nozzle that came with the new pump.
    I thought I could just drop in a pump and go...lol, shoulda just paid the professionals.

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