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  • #16
    Re: Well pump pressure switch

    Good luck that should help until it warms enough to find the leak.

    Comment


    • #17
      Re: Well pump pressure switch

      I was thinking there has to be the check valve. I hope there is no leak other then the gasket in the fitting in the well pipe. I may have that checked before digging up the pipe from the well to the house
      Thanks for every ones help.
      Charlie

      My seek the peek fundraiser page
      http://observatory.mountwashington.o...nal&fr_id=1040


      http://www.mountwashington.org/weather/conditions.php

      new work pictures 12/09
      http://public.fotki.com/hvachawk/

      Comment


      • #18
        Re: Well pump pressure switch

        If you don't have a lot of lift & distance to tank, you do not need the check valve at the tank at all. Many put them in because "that's what we've always done....".


        (P.S. I know there are some situations where putting 2 or more in series can be beneficial. The majority of the time, at least here with wells 100'-150'+ it is redundant/unnecessary.)

        Comment


        • #19
          Re: Well pump pressure switch

          Ok I changed the check valve at the tank. I put the tank pressure at 50psi and set the pressure switch to 30 on 50 off. I closed the valve to house at the tank and the pump went off at 50psi. Now I turned the power off and will see if it drops. It should not.

          Also when I cut the pipe going to the pump the water would not stop coming up the pipe, I did have the power off
          When I got the pressure set in the tank and had the valve off to the house, I put the pump pipe on the fitting and tightened it. Would you believe the pressure gauge went up to about 4 psi with out the power on
          Thats why we have an over plow tank or the water would come right out the well pipe.
          Charlie

          My seek the peek fundraiser page
          http://observatory.mountwashington.o...nal&fr_id=1040


          http://www.mountwashington.org/weather/conditions.php

          new work pictures 12/09
          http://public.fotki.com/hvachawk/

          Comment


          • #20
            Re: Well pump pressure switch

            You have the tank pressure wrong. You have to cut the power off, drain the system, and reset it to 28 psi. I would have just left the check valve out.

            Comment


            • #21
              Re: Well pump pressure switch

              Having a check valve on the inlet side of the tank tee will not tell you anything at all that is happening from the check valve all the way back down to the pump.

              So you have check valve at tee on the inlet. Then coming across you might have gauge, pressure valve, pressure switch on a pipe, a boiler drain, center to tank, then outlet. So if you have a small leak from the check valve back to the pump, you may not know it.

              The pump can possibly overcome the leak to satisfy the pressure switch, the switch cuts off, the check valve closes, then the leak continues while showing NOTHING on the gauge and the system appearing to work correctly. Then you use water in the house, hit 30 psi+- and the pump comes on. You'd get a mixture of air & water and may or may not notice depending on depth, use, leak, etc.

              Simply removing this check valve allows you to see what's going on all the way back to the pump on the gauge. Unless you have an unusual depth and length to well this check valve is NOT beneficial and was NOT installed for a reason.

              Comment


              • #22
                Re: Well pump pressure switch

                The way you have it setup now (Post #19) when the switch shuts off at 50 psi and you close the valve to the house to "check" things for pressure loss, the only thing that you are checking is the tank setup really.

                Hope I'm not aggravating you.

                Comment


                • #23
                  Re: Well pump pressure switch

                  I have no idea how deep the pump is. It cant be to deep because we have a high water table here.
                  What should the tank pressure be ? 28? Why so low.
                  I can try to take out the check valve and see what happens. But the water just comes up the pipe with out the pump on. There must be some good pressure in the ground to do that.
                  Charlie

                  My seek the peek fundraiser page
                  http://observatory.mountwashington.o...nal&fr_id=1040


                  http://www.mountwashington.org/weather/conditions.php

                  new work pictures 12/09
                  http://public.fotki.com/hvachawk/

                  Comment


                  • #24
                    Re: Well pump pressure switch

                    If I take the check valve out and there is one at the pump it should still hold pressure. If there was a leak in the pipe the pressure would drop bringing on the pump right.
                    Charlie

                    My seek the peek fundraiser page
                    http://observatory.mountwashington.o...nal&fr_id=1040


                    http://www.mountwashington.org/weather/conditions.php

                    new work pictures 12/09
                    http://public.fotki.com/hvachawk/

                    Comment


                    • #25
                      Re: Well pump pressure switch

                      Originally posted by HVAC HAWK View Post
                      I have no idea how deep the pump is. It cant be to deep because we have a high water table here.
                      What should the tank pressure be ? 28? Why so low.
                      I can try to take out the check valve and see what happens. But the water just comes up the pipe with out the pump on. There must be some good pressure in the ground to do that.
                      Yeah, we never see water just coming out here.

                      The short answer is that you set the tank pressure at 2 psi below your pressure switch's cut in pressure and that's what works most efficiently. So if you have a 40-60 switch, you set it at 38 psi. A 30-50, you set at 28 psi.

                      You don't gain great pressure and/or efficient pumping by increasing pressure in the tank. The tank lets the pump rest. That is all.

                      Comment


                      • #26
                        Re: Well pump pressure switch

                        Originally posted by HVAC HAWK View Post
                        If I take the check valve out and there is one at the pump it should still hold pressure. If there was a leak in the pipe the pressure would drop bringing on the pump right.
                        Right! No check valve at tank, turn off valve to house, turn pump on, bring to pressure for switch to shutoff, and watch gauge. No pressure loss....all good. Pressure loss....you have a leak from the tank backwards somewhere.

                        Comment


                        • #27
                          Re: Well pump pressure switch

                          Or the check valve at the pump is no good. It will take some time for me to see the drop because I have 4pounds of pressure coming up the pipe by its self.
                          Charlie

                          My seek the peek fundraiser page
                          http://observatory.mountwashington.o...nal&fr_id=1040


                          http://www.mountwashington.org/weather/conditions.php

                          new work pictures 12/09
                          http://public.fotki.com/hvachawk/

                          Comment


                          • #28
                            Re: Well pump pressure switch

                            Originally posted by HVAC HAWK View Post
                            Or the check valve at the pump is no good. It will take some time for me to see the drop because I have 4pounds of pressure coming up the pipe by its self.
                            I've seen check valves bad at the pump, the connection at the pump leaking, pipe leaking anywhere along the way in the well, the pump itself losing pumping efficiency to where it struggled to reach normal pumping pressures, the screens on the pump blocked, etc. etc. etc.

                            The 50 psi vs. 4 psi. should show up pretty quick in my opinion. Any way to take pictures at the well head and this overflow tank?

                            Comment


                            • #29
                              Re: Well pump pressure switch

                              Ok just went to bring the tank pressure to 28psi. Turn on the house valve turn the pump on and it took some time to get to 47psi on the gauge. It never got to 50 like it did before. so for the night I cut it back to go off at about 47psi.
                              Tomorrow im going to put a gauge on the pump side of the check valve and see what it can get up to. It will also tell me if the check valve at the pump is bad or there is a leak in the pipe.
                              My bet is a leak because it cant get up to 50 psi and the pressure is some place.
                              thanks for all the ideas
                              Charlie

                              My seek the peek fundraiser page
                              http://observatory.mountwashington.o...nal&fr_id=1040


                              http://www.mountwashington.org/weather/conditions.php

                              new work pictures 12/09
                              http://public.fotki.com/hvachawk/

                              Comment


                              • #30
                                Re: Well pump pressure switch

                                Originally posted by HVAC HAWK View Post
                                Ok I changed the check valve at the tank. I put the tank pressure at 50psi and set the pressure switch to 30 on 50 off. I closed the valve to house at the tank and the pump went off at 50psi. Now I turned the power off and will see if it drops. It should not.

                                Also when I cut the pipe going to the pump the water would not stop coming up the pipe, I did have the power off
                                When I got the pressure set in the tank and had the valve off to the house, I put the pump pipe on the fitting and tightened it. Would you believe the pressure gauge went up to about 4 psi with out the power on
                                Thats why we have an over plow tank or the water would come right out the well pipe.
                                Sounds like your well is uphill from your house.

                                Comment

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