I have a 19 year old Well-X-Trol WX 202 pressure tank and have experienced no problems with it until today. This morning when no water came out of the faucet or other household taps I checked the circuit breaker -- ok -- then went to the tank. Pressure gauge read "0" and customarily reads "50" when no taps are open. After jostling the tank a bit pressure rose. After a short amount of time and another gentle jostle or two of tank, water availability at faucets/taps throughout house [basement and 2 upper stories] was back to normal. Gauge has since returned to customary "50" and tank appears to cycle as expected with a tap open. Tank along with water heater and softener is out of the way and wiring to Pumptron is secured. Not sure what gently jostling the tank did, but it seems to have worked for now. Would appreciate such insights as to trouble-shooting or thoughts as to what might be the problem as the community might provide.