Chicago : Engineering and Contracting Pub. Co. · leaf 455
h ofthe tile at its upper end to the fall in the tileitself in computing the gradient, or gradeper cent to be entered in to the diagram. Fortight soils use the grade upon which the tileis actually laid. For mains, the velocityshould be nearly equal to that in the sub-mains or laterals. If this is… … ~ Clean out BucKef Tile Laid on a Max. BradefT1 I i i ~^ Brick or ConcreteWalls Eng.VContg.
Buildings
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