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Thread: trouble w/ new jet pump system

  1. #1
    DIY Junior Member coffeedude's Avatar
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    Default trouble w/ new jet pump system

    Aloha!

    I've just replaced an old jet pump for our water catchment system. Basically, my problem is that the motor won't turn off. If the water line is open and in use, the pump runs fine and pressure is fantastic. Once water is shut off, however, the pump doesn't just build system pressure and stop -- it cycles on/off very fast (like a stutter) until the motor heats up and cuts off. Then I need to unplug the pump, wait about 10 minutes and then I can plug it in to get it running. And repeat. If I increase the cut off pressure to avoid the stuttering, then the pump runs continuously.

    I'll do my best to answer the following questions. Thank you in advance for your time!! This is my first pump installation and troubleshooting this has been a pain so any help is deeply appreciated. Here's a link to video of this: http://www.youtube.com/watch?v=e6tiL...ature=youtu.be

    Type of pump?
    Submersible________
    Two wire (no control)________
    Three wire (control box)______
    Wire Size_________ Wire Length________
    or
    Jet Pump (above ground)_____YES____
    One or two pipes down the well__1__

    Size of Pump?
    Motor Horsepower?____3/4______
    Pump Model #______DAYTON 4HEY5________
    Date Pump Installed_____1/15/2014_____

    Pumping from?
    Cistern tank_____CATCHMENT TANK 10' TALL x 16' DIAMETER______
    Pond, lake, river________
    Water Well____________
    Depth of well__________
    Depth to water___7'______
    Pump Setting__________
    Pipe Size____1.25" INLET, 1" OUTLET_____
    Drop Pipe Material
    PVC___yes_____
    Steel_______
    Poly________

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

    Well Casing Material
    PVC________ Steel_________ Other_________


    Pressure Tank?
    Bladder or diaphragm tank (one pipe to tank)____DIAPHRAGM - FAULTY: HUGE LEAK IN VALVE______
    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 ___yes_____
    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______FILTER________
    Before or after pressure tank___BEFORE____
    Type of filter_________20 micron__________
    Bypass available______NO bypass of filter; YES bypass to pressure tank__________

    Water Used For?
    House Use___YES____ Number of baths____2___ Number of People____3____
    High Flow Showers_______gpm?
    Plus/Or
    Irrigation with timers____NO____
    Irrigation with hoses____YES____
    Heat Pump______gpm?


    Problems Experienced
    No Water_________________
    Water only part time________
    Water at all times but weak_____
    Air in water_______________
    Pressure surging___________
    Water Hammer (noise)______THIS SOUNDS LIKE AN APPROPRIATE DESCRIPTOR
    Too Much pressure_________
    Other____________________


    Pump makes clicking or buzzing sounds___ CLICKING COMES FROM THE PRESSURE SWITCH TURNING ON/OFF RAPIDLY
    No Sounds______________
    Pressure gauge reading____60____psi
    Other____________________________________

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

    Describe Problem__________________________

  2. #2
    DIY Senior Member craigpump's Avatar
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    Default

    How far is the pressure switch from the tank?

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

    About 5'. I failed to mention that I've been bypassing the tank on account of its leak. This is a rookie question: do I need to have a pressure tank in order for the pump to function properly? I figured it would just turn on as needed to pressurize the system and then turn off.

  4. #4
    DIY Senior Member craigpump's Avatar
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    Default

    Ya gotta have a tank and the pressure switch should be closer than 5' away

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