Illinois Society of Architects · Chicago · leaf 557
eased one sizefor same .area of drainage. Square Poet of Drainag-e Area- Diameter 4 inchC 10 Fall i/t in. per foot l.SOO 5.000 9.100 14.000 Fall 1/2 in. per foot 2.500 7.50013.60020.000 Fall 1/4 in.per foot1.5003.0006.0009.000Back Water Valves: ^^llenever the grade or size of sewer instreet is such…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
