A. 
The house sewer shall not be less than five-inch-diameter extra-heavy cast-iron pipe, or other approved sewer pipe.
B. 
Any house sewer passing through a cesspool shall be installed with five-inch extra-heavy cast-iron pipe and lead caulked joints.
A. 
House sewers shall be covered to a depth of at least two feet with well rammed fine earth free from stones and rubbish.
B. 
When a house sewer is installed and house trap will be below grade, a slate, steel or concrete cover two feet by two feet must be installed over concrete pit.
C. 
When a house sewer is being installed and no house trap, fresh air inlet or continuous vent through the roof exists, the same must be installed: minimum two-inch vent pipe increased to four inches through the roof.
D. 
All plumbing fixtures must be connected to the sanitary system when a house sewer is being installed.
A. 
An iron running trap shall be placed in the house drain near the front wall of the house, and on the sewer side of all connections must be installed in cellar. If placed outside the house or below the cellar floor, it must be made accessible by a masonry manhole at least 24 inches square inside or 30 inches inside diameter, the wall of which shall be at least eight inches thick and provided with an iron manhole cover. When outside the house, it shall in no case be less than three feet, six inches below the surface of the ground. Where fixtures are less than three feet above the main sewer in the street, an approved backwater valve shall be installed.
B. 
A five-by-four extra-heavy cast-iron wye shall be placed inside the foundation wall and before the house trap. In slab floor or cellarless types of jobs, the above shall be placed outside the house in a pit, as described in the previous subsection.
C. 
When the plumbing system of any building is altered by the addition of any new soil, waste or vent lines to the extent of 50% or more, and no house trap and fresh air inlet are existing on the house drain, the same shall be provided for as prescribed in this section.
Before beginning work on a house sewer, notice shall be given the Building Department. No work shall be covered until it has been inspected and approved by a Plumbing Inspector.
Excavations or street openings necessary for sewer connections or installations, house sewers and service pipes shall be made in accordance with the regulations of the Incorporated Village of Valley Stream and the ordinances applicable thereto.