Where to put in a stink pipe?

A stink pipe, or vent pipe, should be installed vertically and extend above the roofline of the building to effectively vent sewer gases outside. It is typically placed near the main waste stack, ideally within 3-5 feet of the fixture it serves. Ensure it is installed in a location that avoids obstruction and is easily accessible for maintenance. Local building codes should also be followed for proper installation and placement.