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Section 71: where a single basement or first floor closet is placed <br />more than five (6) feet from the point of connection to the inside house <br />drain or soil stack, In addition to the(4) inch main soil steak, a vent <br />stack not less than(2) two inches in diameter must be provided and ex. <br />tended through the roof, provided, howeper, that not more than one such <br />fixture shall be so connected. <br />Section 72: Where there are a series of closets one �abbve the other <br />the lower closets must be protected by venting* <br />Section 73: All main vents shall be run undiminished and connected <br />fall size at their base to the main waste or soil pipe at or belov: the <br />lowest fixture branch and shall be extended above the roof, They may be <br />connected with the adjoining soil or waste vent one foot above the high - <br />eat fixture* <br />Section 74: Every branch soil or waste pipe to which a group of two <br />and not more than eight water closets or pedestal urinals only are oonneot- <br />ed, may be vented by a circuit or loop vent, provided each horizontal <br />branch does not exceed tzenty -five (25) feet in length, Connection from <br />such branch shall be taken from X to TX branches. The vent shall be tac en <br />off in front of the last fixture connection, and must rise one foot above <br />the top of the hightst fixture before offsetting horizontally or oonneot.. <br />Ing to the branch, main, waste or soil vent, <br />Where other fixtures discharge into said waste line, each fixture <br />must be separately revented« <br />Section 75: there the vent or revent pipes are continuous and traps <br />are ventilated through the waste fitting, the center of the outlet of szch <br />Pitting shall not be set below the water seal of the trap, and the traps <br />shall not be more than three (3) feet from vent stack. <br />Section 76: Horizontal revents below the water line of many fixture <br />shall.be offset to vertical as near to the fixture as possible. <br />Soldering unions or nipples used for vent or waste connections shall <br />not be wiped direct to lead bend, drum trap or lead waste but .said vent <br />pipe connection shall be made of lead to a point of at least aix (6) inches <br />above the floor* <br />Section 77: Every fixture trap shall be protected from siphonage <br />