I have a well (submersible pump) and a water softner. When the well cuts on the pressure rapidly builds to 55 psi. It then loses this pressure fairly quickly (loss of pressure in the house). It drops from 55 psi (with the shower running) to about 37 psi in about 30 seconds. The "above ground pump" (a little pump that is mounted on top of a pressure tank) is also on and maintains the 37 psi for about 60 seconds or so until the submersible cuts on again. How do I maintain higher pressures for longer peroids of time. Is the top-side pump not working properly? The submersible raises the pressure to 55 psi very quickly, but loses it rapidly once cutting off (even with the other pump running). Any ideas?