Sewer ventilation. Septic vent, plastic pipe up on ground. Construction site, drainage detail. Riser pipe, air passage2023-07-272023-07-27https://martinseptic.com/wp-content/uploads/2020/07/logo-400w.pngMartin Septic Servicehttps://martinseptic.com/wp-content/uploads/2020/07/logo-400w.png200px200px