All sanitary sewer pipe must be installed with a minimum cover of three feet, and a six-inch inspection tee shall be installed one foot behind the property line. The inspection tee must be capped with a plastic stopper at a depth of six inches below grade and sealed to be watertight. If the existing sanitary sewer connection from the house has less than three feet of cover, the change in depth must be made within ten feet of the house. The test tee must be made of the same material as the sewer connection pipe and must be installed vertically.
The pipe must be installed with a minimum slope of one percent or one-eighth inch per foot of length. All sections of pipe must be properly jointed to avoid any leaks and to prevent roots from entering the sewer. All lines leading from the inside of a dwelling must be connected to the sanitary sewer. No downspout may be connected to the sanitary sewer. The pipe must be installed in a straight line and uniform grade except when curves are installed.
All the bells of the sewer pipe must face up-grade and the bottom of the trench must be shaped to fit the pipe. The ground must be dug deeper at the bells in so that the entire pipe will rest firmly on the bottom of the trench.
(Ord. 1963-6. Passed 9-10-63.)