A method and apparatus of a docking port arrangement for an adjustable dispensing device. The dispensing device may discharge a fluid and/or gas into the wash chamber. The dispensing device may be retracted into the wash chamber and extended out of the wash chamber. A gasket or portions thereof may be used for sealing and/or as an abutting structure during retraction into the wash chamber. The dispensing device may be, but is not limited to, a rotating spray arm. Two check valves may pivot together relative to a check valve plate.