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(a) The connection of the building sewer to the public sewer shall be made at the branch or spur provided, if such branch or spur is available at a suitable location. If no properly located branch or spur is available, the connection shall be made by the owner at his expense at the location designated by the Loudoun County Sanitation Authority and in a manner specified in the subsection (b) hereof, except that a saddle-type connection may be installed as specified in subsection (c) hereof, provided that the connection is of a design and manufacture approved by the Authority.
(b) If the public sewer is twelve inches in diameter or less, a joint of sewer pipe with a branch the size and type of the public sewer shall be installed in the sewer line by removing at least three joints of the existing sewer and replacing them with the new pipe and branch. The branch shall be so positioned that the crown of the building sewer pipe is higher than the crown of the public sewer. All joints shall be made gastight and watertight conforming to Section 1064.15. In no case shall connections be permitted by inserting standard fittings in rough cut holes in the public sewer and/or by encasement of such connections in concrete. The Authority reserves the right to require testing of watertightness of the connection.
(c) Saddle-type connections shall be installed on the sewer main with a smooth round hole machine-drilled into the pipe. The saddle-type fitting used in the connection shall be made in such a manner as to insure that no protrusion of the fitting into the main sewer results. The connector shall fit perfectly the contour of the inside of the sewer and shall be specifically designed to fit the particular size main into which the connection is made. The joint material used to connect the fitting to the sewer pipe shall be of the epoxy resin type and shall be completely waterproof and capable of withstanding any condition of stress or strain likely to be encountered in normal sanitary sewer construction or maintenance. Concrete encasement shall not be permitted. The fitting shall be manufactured of cast iron, vitrified clay or cast aluminum alloy and shall be capable of receiving the type of pipe approved herein for the building sewer. The crown of the building sewer at the point of connection shall be at a higher elevation than the crown of the public sewer. The Authority reserves the right to require testing of watertightness of the connection.