14 CAR § 21-706. Serial distribution

(a)(1) Serial distribution may be used when lines of even length cannot be achieved. (2) The overflow point of the tee or hillside box shall be at the top of the trench media for the line or lines served. (b) Sizing for both primary and secondary absorption area shall be increased by twenty-five percent (25%). (c) Serial distribution systems designed under percolation test shall not be smaller than required by seasonal water table data. (d) Serial distribution systems shall not be approved for dosing situations.