A normal residential water pressure is the average water pressure for a home and can be between 40 and 80 pounds per square inch. The maximum water pressure for a residence is 80 psi. A standard water pressure is important in ensuring a constant water supply and to prevent leaks.
High water pressure is a major cause of pipe damage, water waste and leaks. Excessive water pressure can also lead to thermal expansion in a residence. A homeowner can test water pressure using a gauge that is screwed onto the hose bibb. Owners of homes with high water pressure can install a pressure regulator at the meter to ensure a safe pressure.