Has anyone had this problem. I have great water pressure in my home, but for the past few days in the middle of a shower, washing clothes, dishes, or just running a faucet my pressure goes to 0psi for about 5 seconds. After watching the guage, where the water comes into the house I see that my pressure initialy goes to 60 psi. when water is running it gradually goes down until it hits 0. then the pump kicks on and gets the pressure back up to 60. So is my pressure switch bad, or my water tank? For the past 10 years I haven't changed either and have had no problems. Thanks in advance.