My problem is that when I am home and running water it will work all day long but if I go to work or even to bed the next time I use the water it will run until tank is empty and then pressure drops to zero. I have to manually close the switch to force water. When the pressure drops to 30 the switch is closing on its own but the pump is not coming on, as soon as the pressure drops to zero the switch opens and thats when I can manually turn it on.