How do I tell if I have a leak?
Turn off all water using appliances and faucets in the house, and then go look at the meter. If it is still spinning, that is an indication of a water leak somewhere. Locate the shutoff valve in the house (often next to the hot water heater) and turn the water off. Check a faucet first to make sure it is off. You may get residual water, but it will stop very shortly if the water valve has been turned off. Now check the meter again, and if the meter is still spinning then there is a leak between the meter and the house. If the meter stops spinning, then the leak is in the house. Your next step should be to call a plumber and explain your situation. They may not be able to help with a leak if it is between the meter and the house. If that is the case, look in the phone book under Leak & Pipe Locating in the yellow pages.