Water Main Leak Repairs
A frequent misconception is that every water main line leak will result in a corresponding loss of water pressure. Actually even if a water main repair is needed, it is quite unusual to have a loss of pressure.
Having a leak on a service line is no different than having a sink or other plumbing fixture running in your house. It typically does NOT result in a loss of pressure. Only in extreme cases, such as a ruptured service line or the actual tap connection becoming dislodged from the city main, will there be a drop in pressure.
Typically the first sign of a leak is the sound of running water, or a humming sound in the pipes. A leak will create a vibrating sound on your pipes and frequently be audible long before the leak is visible. It is typically most evident at night, when activity quiets down inside the house