When an extension supplying more than one house or user outside the municipal limits is connected to municipal water mains, the water superintendent may require a master meter to be installed near the point where the connection is to be made to the municipal main. This installation will be at the expense of the persons served by such extension according to the regular rates for meter installation. Responsible parties must agree to pay all bills for water served through the meter at the applicable water rates. (Prior Code § 14-153)