I had a small leak from the connections to my flojet pump, so I removed it and put vaseline on the O-rings to try and seal the leak. I have now reinstalled the pump and although I have a 12v supply to the pump it will not now work. I assume that the pressure switch is not working and I believe it is part of the pump. Is there some technique to reset the pressure switch? Would pressurising the system with a Waterline have any effect or do I just accept that I need a new pump?