Disclosed are systems and methods which apply design criteria to beam forming network parameters to arrive at a passive beam forming network design. The inventive process includes the addition of an additive component of sodium nitrite and sodium hypophosphite into such iron-containing vessels, to thereby react with iron of the inside walls and form a protective coating thereon. A protrusion is formed at the first junction, and a recess capable of receiving the protrusion is formed at the second junction. Pretreatment of the interior of the lumen with liquid peroxide greatly improves the efficiency of sterilization of the interior. Thereby, vibrations transferred to the foundation are considerably reduced during operation.