(A) It shall be unlawful for any person to make or maintain, or cause to be made or maintained, any connection with any public sewer of the city until a permit therefor shall have been obtained from the Community Development Director, or to make, or cause to be made, any such connections pursuant to any such permit at any place other than that designated therein.
(B) Every connection made with any public sewer of the city shall be made in the following manner and with such materials as are designated:
(1) Pipe. All pipe shall be first-class, vitrified, salt glazed, socket pipe or standard cast iron soil pipe not less than six inches in internal diameter, for that portion extending from the street sewer to the property line, and not less than four inches in internal diameter for that portion extending from the property line to the house or building for house connection sewers serving 20 persons or less, and not less than six inches in internal diameter for all portions of house connection sewers serving more than 20 persons.
(2) Clean outs. A clean out shall be placed in every house connection sewer at the junction with the soil pipe at the building and at all changes in alignment and grade. The clean out shall be made by inserting a Y branch in the line with a cap of the same material as the house connection sewer pipe tightly cemented in the bell end of the portion of the Y branch which will be used to gain access to the connection.
(3) Grades; joints.
(a) All vitrified clay pipe shall be laid upgrade on an unyielding foundation and with the socket ends of the pipe upgrade. A narrow gasket of oakum, hemp, or equivalent shall be caulked into each joint, after which the compound shall be introduced therein. The entire annular space in all pipe joints between the exterior of the spigot and the interior of the socket shall be completely and carefully filled with hot poured C.P.I. (sulphur silica) compound or approved equal, and the connection shall be watertight when completed.
(b) When the condition of the trench is such that it is impossible to secure a watertight mortar joint, a sewer joint compound which shall meet the requirements of the standard specifications for public sewers shall be used.
(c) All joints of standard cast iron soil pipe shall be made with pig lead and oakum and shall be thoroughly caulked.
(d) The grade shall be straight from the property line to the public sewer and shall have a fall of not less than one foot in 50 feet toward the public sewer, except where otherwise permitted by a special permit in writing from the Community Development Director.
(e) Vitrified clay piping shall not be placed closer than 12 inches to the exterior wall of any building or closer than 12 inches to the surface of the ground at any point of its course.
(4) Depth. Where laid within the limits of a public street, no connection shall be laid less than three feet below the established grade of the same or below the surface, where no grade is established, except by a special permit in writing from the Community Development Director.
(5) Pressure. Every house connection sewer outside of any building shall be constructed in such a manner as to withstand a pressure of not less than four pounds per square inch without leaking at any point when filled with water.
(6) Testing.
(a) Every such house connection sewer shall be tested, before being approved, in that portion extending from the property line to the upper terminus thereof by a standing test which shall consist of filling the line with water and carrying the level of the column of such water to a height sufficient to develop a pressure of four pounds per square inch at the lower terminus thereof, and in no event to a height of less than four inches above the top of the upper terminal end of such sewer. In lieu of such standing test, a pump test may be made which shall consist of filling the line with water, capping or sealing each upper terminus thereof, and applying an air pump at the property line in such a manner as to furnish an aggregate pressure of four pounds per square inch in such sewer at such lower terminus.
(b) Where, by reason of excessive fall in any such house connection sewer, the static pressure in a standing test will exceed four pounds per square inch, such line shall be tested in sections of such length that no such section, nor any portion thereof, will be subjected to a pressure greater than four pounds per square inch.
(c) In the event any joints of any house connection sewer are cemented with portland cement mortar, no test shall be made thereof until the expiration of not less than 24 hours after such cement joints are made.
(7) Approval.
(a) No such house connection sewer shall be approved if any portion thereof, including any fittings, material, work, or construction, fails to withstand the test provided for in this subsection without leaking at any point.
(b) No sewer connection shall be covered or concealed in any way until it has been inspected and approved by the Community Development Director.
('65 Code, § 6-8.119) (Ord. 410, passed - - ) Penalty, see § 10.99