18-29-705.10.2 Mechanical joints.

   Joints shall be made with an approved elastomeric seal. Mechanical joints shall be installed in accordance with the manufacturer's instructions.

18-29-705.11 Deliberately omitted.

18-29-705.12 PVC plastic.

   Joints between PVC plastic pipe or fittings shall comply with Sections 18-29-705.12.1 through 18-29-705.12.3.

18-29-705.12.1 Mechanical joints.

   Mechanical joints on drainage pipe shall be made with an elastomeric seal conforming to ASTM C1173, ASTM D3212 or CSA CAN/CSA B602. Mechanical joints shall not be installed in above-ground systems, unless otherwise approved. Joints shall be installed in accordance with the manufacturer's instructions.

18-29-705.12.2 Solvent cementing.

   Joint surfaces shall be clean and free from moisture. A purple primer that conforms to ASTM F656 shall be applied. Solvent cement not purple in color and conforming to ASTM D2564, CSA CAN/CSA B137.3, CSA CAN/CSA B181.2 or CSA CAN/CSA B182.1 shall be applied to all joint surfaces. The joint shall be made while the cement is wet and shall be in accordance with ASTM D2855. Solvent-cement joints shall be permitted above or below ground.

18-29-705.12.3 Threaded joints.

   Threads shall conform to ASME B1.20.1. Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe. Approved thread lubricant or tape shall be applied on the male threads only.

18-29-705.13 Vitrified clay.

   Joints between vitrified clay pipe or fittings shall be made with an elastomeric seal conforming to ASTM C425, ASTM C1173 or CSA CAN/CSA B602.