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| | Plumbing for Single Family |
 | | Drainage piping shall be cast iron, galvanized steel, galvanized wrought iron, lead, copper, brass, Schedule 40 ABS DWV, Schedule 40 PVC, DWV, extra strength vitrified clay pipe, or other approved materials having a smooth and uniform bore. |
 | | Drainage fittings shall be of cast iron, malleable iron, lead, brass, clay, or other copper, ABS, PVC, vitrified approved materials having a interior waterway smooth of the same diameter as the piping served and all such fittings shall be compatible with the type of pipe used. |
 | | Drainage and Venting Systems shall be tested with a 10-ft. head of water. |
| www.naffainc.com /x/CB2/Plumb/plumbingsfr.htm (690 words) |
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