So, a couple of years ago I posted in here about a water problem I was having and never really solved it so I'm going to try again. The water for our house is supplied by a submersible pump that feeds into a 100 gallon pressure tank that supplies both my parents house and my house. The system uses a 60/40 Pressure switch. The issue is that the system will drop to thirty pounds of pressure and won't go higher UNLESS we unplug the power to the pump for about thirty seconds then it the pressure immediately starts going up to the 60psi and then the pump shuts off like it should. What's going on? Can the pressure switch get deposits in it from hard water?