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30 . Table 710. 1 (1) is revise to read as follows : <br /> TABLE 710 1 (1) <br /> Maximum Unit Loading and Maximum Length of Drainage and Vent Piping <br /> Size of pipe, inches 1-1/4 1-1/2 2 2-1/2 3 4 5 6 8 <br /> Maximum Units <br /> Drainage Piping' <br /> Vertical 1 22 16' 323 484 256 600 1380 3600 <br /> Horizontal 1 1 8? 143 354 2165 4283 7203 26405 <br /> Maximum Length <br /> Drainage Piping <br /> Vertical, feet 45 65 85 148 212 300 390 510 750 <br /> Horizontal <br /> (Unlimited) <br /> Vent Piping (see note) <br /> Horizontal and Vertical <br /> Maximum Units 1 83 24 48 84 256 600 1380 3600 <br /> Maximum Lengths, feet 45 60 120 180 212 300 390 510 750 <br /> 1 Excluding trap arm <br /> 2 Except sinks, urinals and dishwashers <br /> 3 Except six-unit traps or water closets. <br /> 4 Only four (4) water closets or six-unit traps allowed on any vertical pipe or <br /> stack, and not to exceed three (3) water closets or six-unit traps on any <br /> horizontal branch or drain. <br /> 5 Based on one-fourth (1/4) inch per foot slope For one-eighth (1/8) inch per <br /> foot slope, multiply horizontal fixture units by a factor of 0 8 <br /> Note The diameter of an individual vent shall not be less than one and one-fourth <br /> (1-1/4) inches nor less than one-half (1/2) the diameter of the drain to which it is <br /> connected Fixture unit load values for drainage and vent piping shall be computed <br /> from Tables 709 2 and 710 1(1) Not to exceed one-third (1/3) of the total permitted <br /> length of any vent may be installed in a horizontal position When vents are <br /> increased one (1) pipe size for their entire length, the maximum length limitations <br /> specified in this table do not apply. <br /> 31 Table 710. 1 (2) is deleted in its entirety <br /> 32 Section 711 is deleted in its entirety. <br /> 33 . Section 712.2 is amended by the deletion of <br /> the exception set forth in such section. <br /> 34 . Section 712. 4 is amended by addition of a <br /> new final sentence to read as follows . <br /> Dual pumps are required and shall be <br /> arranged to function independently in case <br /> of mechanical failure except that single- <br /> family residential occupancies may have <br /> single pump if an approved sensor and alarm <br /> system is installed. <br /> 35 Section 712. 4 . 1 is amended by the deletion <br /> of the exception set forth in such section. <br /> 36 . Section 714 is deleted in its entirety. <br /> 37 . Section 802 is amended by addition of a new <br /> 7 <br />