Another problem: PEX fittings are more expensive than metal or PVC fittings. The vent stack in any building is the main vent pipe connecting the sewer to the roof. It’s that two- to three-inch ...

Reduce the noise of water draining through PVC by wrapping the ... and tie into an existing stack, you may drain water through a pipe that's currently used as a vent. Drains: In this plan, a ...