I moved to a new house in the city last year. My first water bill came and it was around $65. My next bill came and it was $645!! The cosumption was about 1100 gallons/day according to the bill. I have been fighting with the city to come out and reinspect the meter. I checked all of the pipes in the house and toilets for leaks - none were found. I turned the water off coming into my house in the basement, and took note of the meter reading. I came back about 3 hours later, and the meter hadn't moved so I turned the water back on. I do not have any water appearing in my basement and so far my 25' long front yard hasn't sunk in. I have normal water pressure through out the house. Is it possible for a pipe to leak only when I turn on my faucet in the house??? While I've been fighting the beuracracy of the City of Baltimore, I thought I might check on here to get some expert opions before consulting with a contractor to come out to the house if one is not needed. Thanks!!