Cast Iron Soil Pipe & Fittings Handbook
Chapter 2 - Installation of Cast Iron Soil Pipe and Fittings
Above Ground Installation ProceduresWith attention to a few basic rules the installation of cast iron soil pipe and fittings is easily accomplished.
Large Diameter FittingsHorizontal pipe and fittings five (5) inches and larger shall be suitably braced to prevent horizontal movement. This shall be done at every branch opening or change of direction by the use of braces, blocks, rodding or other suitable method, to prevent movement.
Closet bends, traps, trap-arms and similar branches must be secured
against movement in any direction. Closet bends installed above ground
shall be stabilized by firmly strapping and blocking. Where vertical closet
stubs are used they must be stabilized against horizontal or vertical movements.