(A) The permitted materials and uses, listed in the State of Illinois Plumbing Code will be hereby restricted as follows:
(1) Type “M” copper shall be the minimum type of copper allowed, when the intended use is a heating line. Materials other than copper are not acceptable, except as noted in division (B) of this section.
(2) Type “K” copper shall be the minimum type of copper allowed, when the intended use is for potable water distribution, below grade or in concrete. Materials other than copper are not acceptable, except as noted in division (B) of this section.
(3) Type “L” copper shall be the minimum type of copper allowed, when the intended use if for potable water distribution, above grade. Materials other than copper are not acceptable, except as noted in division (B) of this section.
(4) P.V.C. Schedule 40, D.W.V. copper and service weight cast iron shall be the minimum types of materials allowed when the intended use is for waste, drain and/or vent lines above ground. Materials other than those listed in this division are not acceptable, except as noted in division (B) of this section.
(5) All copper shall be installed with a lead- free solder.
(6) Service weight cast iron shall be the minimum type allowed, when the intended use is for waste, drain and/or vent lines, below grade or in concrete, on commercial interior type construction. Materials other than cast iron are not acceptable, except as noted in division (B) below.
(B) Unusual circumstances. Unusual or unique circumstances and/or applications may allow other materials to be used which shall be approved by the Building Commissioner and the Plumbing Inspector and is a permitted material for the intended use by the state Plumbing Code.
(Ord. 89-28, passed 10-11-89; Am. Ord. 2005-011, passed 6-15-05)