Ok....here we go again, got a call at work, my wife advising me that the line between the pump and the switch blew off and water was spraying everywhere......she reattached the line to the fitting ....up until this time we have been having issues with the pump not building pressure, when it kicks in at its 30psi it runs without building pressure, I turn the switch off momentarly turn it on and voila...it begins to build pressure again....where and why is my Jet pump not building pressure, am i sucking air?..is my pressure switch faulty?