Cast iron pipe.

(a)Each caulked bell and spigot joint in cast iron pipe must be sealed with mechanical leak clamps.#

(b)Each mechanical joint in cast iron pipe must have a gasket made of a resilient material as the sealing medium. Each gasket must be suitably confined and retained under compression by a separate gland or follower ring.#

(c)Cast iron pipe may not be joined by threaded joints.#

(d)Cast iron pipe may not be joined by brazing.#