Please forgive my naivety however very confused, any help appreciated: I live in a 2 story house, 4br, 2.5 baths. The half bathroom downstairs all of a sudden started overflowing, has happened before (2 young boys!) & can usually plunge but this time couldn't. While I was taking a shower upstairs my wife said the toilet downstars just started overflowing out of nowhere. Tried to plunge it but didn't work. Later it overflowed several more times & I turned the water off in that bathroom, & was surprised when it kept overflowing despite my dismay! Also I noticed overflow in the kitchen from behind the refrigerator. The dishwasher also has standing water. I mopped up, but then it really came out and since it was the beginning of the holiday weekend & my landlord was out of town, I decided to call the county to see if I could get the water main turned off. They came out right away, looked for a clean out line, I believe they called it..one of those white pipe things I've seen in neighbors front yards after being digged up, & I didn't have one. They said they weren't responsible for inside plumbing, but since I didn't have one of these things, they would come & put one in at no cost! I was surprised, maybe tax dollars at work. or whatever..I have seen them digging for a few months on our street..maybe some other agenda, but sounded good however might be a few days before they can do it. They also said that they didn't need to turn off the water which really confused me! My question is our using the appliances, plumbing, etc. We have nowhere to go & wonder if we can use on a limited basis. Our washer is in the carport on the same level as the bathroom that overflows, am wondering if we can use & will i back up? And I apologize, but don't really understand plumbing... water flow, pressure, etc. of a house, I see that when I flush a toilet upstairs or use the shower, it is coming out through my downstairs toilet, maybe ice maker drain..dishwasher(?) What I want to know is if what I see is our waste, or could it be backing up from outside our home, I kind of have a fear of the unknown, I'd like for our family to use the facilities.somewhat, not if I could get the flow of the Chattahoochee as a result! In other wirds if we flush the upstairs toilet, is that the backup that we are seeing, will it happen everytime, etc. I have a genie wet vac that I can use, if I am not harming the system more by using it at all. And what about the washing machine & dishwasher. Should I use or not.are all these related? Thanks for your help, sorry if I overdid it, any advise appreciated!

Hi all, I have a well with a holding tank pressurized with air. When the pump comes on it SOUNDS LIKE a loud rush of air that enters the tank first (it vibrates the floor) The tank fills normally then shuts off. Any ideas? PLUS what should the pressure be when the tank is full? THANKS FOR ANY HELP