I noticed my water pressure was not as good as it used to be, and that when we used water, I did not hear the switch kick on as it once did, so I went out side and seen that the switch was staying closed, so I turned off the breaker, to see if the switch would kick out and reset its self. Well this is what happened, I hear water draining when I shut it off, so I went in and turned it back on, the switch was still closed, the water started to spit air, and mud, then with a loud pop in the house from the sink, it stoped, and I now have no water at all, the switch still has current, and is closed but not water?

help please!