All sewers or drains must, where possible, be given an even uniform grade to the main sewer of not less than 'A of an inch per foot on a properly prepared trench bottom. The main sanitary drainage system of every building, dwelling or structure shall be separately connected with the Borough sewer, except where a legal accessory structure, building or use exists together with the main building on a single lot, then one connection to the main sewer will be allowed, providing that no joint sewer shall traverse above or beneath the cellar floor or otherwise through either structure. Auxiliary sewer line to legal accessory structure shall only be connected to the joint sewer line by a "Y" branch outside the foundation of the main building or use. A horizontal trap must be provided; on new construction, placed immediately inside the foundation wall or on old construction outside the cellar wall, the trap must be provided with a handhole for the convenience of cleaning, on traps inside the cellar wall and cover of heavy brass screw cap ferrule, caulked in and made gas and air tight, must be provided or on traps outside the cellar wall, a suitable extension to the level of the surface of the ground and properly capped must be provided. A fresh air inlet must be connected with the sewer or drain just inside of the main horizontal trap and piped to the outer air and fitted with an approved automatic device. The fresh air inlet must be the same size as the drain pipe or not less than 6 inches in diameter when outside the cellar wall or not less than 4 inches inside the cellar wall.
(Ord. 535, 4/4/1962, §7)