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Thread: Whole house water pressure normal then drops to a drizzle

  1. #1
    DIY Junior Member Joline86's Avatar
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    Default Whole house water pressure normal then drops to a drizzle

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

    Size of Pump?
    Motor Horsepower?__________
    Pump Model #______________
    Date Pump Installed__________

    Pumping from?
    Cistern tank___________
    Pond, lake, river________
    Water Well_______X_____
    Depth of well__________
    Depth to water_________
    Pump Setting__________
    Pipe Size_________"
    Drop Pipe Material
    PVC________
    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)____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______20/40 (Set higher)_________

    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______________
    Before or after pressure tank_______
    Type of filter___________________
    Bypass available________________

    Water Used For?
    House Use____X___ Number of baths__2_____ Number of People____5____
    High Flow Showers_______gpm?
    Plus/Or
    Irrigation with timers________
    Irrigation with hoses________
    Heat Pump______gpm?


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


    Pump makes clicking or buzzing sounds________
    No Sounds______________
    Pressure gauge reading____30____psi
    Other____________________________________

    Do you have, and know how to use
    an Ampmeter and Voltmeter_______Do not have___________

    Describe Problem:

    We bought a mobile home 3 years ago. We have a well pit a few yards away from the house. In the past 3 years our pipes have frozen twice, although they did not burst. They were not wrapped properly with heat tape and insulation. We have always had problems with water pressure. There is alot of sediment in the water and we replace the filter in the well pit at least once a month. A few months ago we replaced the pressure switch and the pressure tank, because we were loosing pressure and at times had no water. Since then the pressure was normal. A few weeks ago I noticed there was a small amount of water leaking out from under the panel where our hot water heater is located. Upon inspection I could not find a visible leak. I put a towel down in front of the panel and after a few days it did not appear to be leaking anymore, at least there is no water coming out from under the panel. Right before Christmas, we started loosing pressure again. If you turn on the faucet it seems to be normal pressure and then it dwindles down to a drizzle. Turn the faucet off and wait a minute, turn it on and it does the same thing again. At that time I didn't have time to worry about it with the holiday so I let it go. Then one night I was helping the kids brush teeth and I realized that the pressure was back. I got the kids bathed. The next morning I did several loads of laundry and a load of dishes, then I took a shower, the pressure was fine. My fiance came home and went to take a shower and it started doing the same thing again: starts off normal and dwindles down to a drizzle. We checked the pressure at the tank in the pit and it was 30 psi, when the water is turned on inside the house, the pressure in the pit stays steady and the pressure in the house dwindles at the faucet. My uncle came and looked at it and said he thinks that it may be a pinched line between the well pit and the house. There is a tree between the two and he thinks possibly a root grew too close to the line. I have no clue and I don't have the money to have a plumber come out. Also I did a patch job on the hose nozzle awhile ago, there is a small crack in the pipe coming out from under the house and I used a piece of vinyl and some hose clamps to seal it temporarily. Money is tight and we are trying to make due with a house that needs repairs and three kids. I know this is a ton of information, but I figured it is better to be thorough and give as much info as possible. I would appreciate if anyone could give me any insight or confirm my uncles suspicion before we go digging up the yard. I have mechanical knowledge, but plumbing is not my area of expertise. If more information is needed please let me know. Thanks in advance.

  2. #2
    Moderator valveman's Avatar
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    Default

    Don't do anything until you have changed the pressure gauge. They are cheap, maybe 5 bucks. If you then always show good pressure at the well pit, even while the water trickles in the house, then maybe the tree root thing is possible. If the pressure on that gauge is low when you experience the "trickle", then you have other problems. Maybe you just need to replace the filter cartridge more often. Or the large amount of sediment could have damaged your pump or stopped up the well.

  3. #3
    DIY Junior Member Joline86's Avatar
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    Default

    Thank you. I will see about changing the pressure gauge and the filter and see what that does.

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

    It also sounds like your well is going dry. The water level may be dropping to low for your pump. When you wait the water table may be rising up high enough for the pump to start pumping again and build enough pressure.

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