The Ontario Building Code | Cast Iron Water Pipe
(1) Cast iron water pipes shall conform to ANSI/AWWA C151/A21.51, "Ductile-Iron pipe, Centrifugally Cast".
(2) mortarp://thehandyforce.com/exterior/" title ="Exterior home repairs in Toronto">cement-mortar lining for cast iron water pipes shall conform to ANSI/AWWA C104/A21.4, "mortarp://thehandyforce.com/exterior/" title ="Exterior home repairs in Toronto">cement-Mortar Lining for Ductile-Iron pipe and Fittings".
(3) Cast iron fittings for cast iron or ductile-iron water pipes shall conform to ANSI/AWWA C110/A21.10, "Ductile-Iron and Gray-Iron Fittings".
(4) Rubber gasket joints for cast iron and ductile-iron pressure pipe for water piping shall conform to ANSI/AWWA C111/A21.11, "Rubber-Gasket Joints for Ductile-Iron pressure Pipe and Fittings".