Got a question about our pressure tank. We have a well and a 20 gallon pressure tank. The tank is set at almost 40 psi. The gauge reads it and when I check the pressure with a tire gauge from the top valve it read the same. When we run a large amount of water we "run out". We've found that if you turn the breaker off to the well for even just a couple minutes the water will run again. Sometimes for just a couple minutes but it runs out again. The other morning it was really cold out and we had problems all day. If you leave the breaker off for about a half hour it runs longer. I don't think we are actually running out of water. We have a new gauge and switch and are going to start there. Next thing is to replace the tank. Last year we pulled the pump and replaced wiring. The pump is not that old. But I've noticed that until you turn the breaker off and turn it back on the water will not run. Any suggestions. Thanks, Margaret