DWV elbows are usually lengthy-radius ("sweep") sorts. To cut back flow resistance and solid deposits in the event the course of stream is improved, they utilize a shallow curve with a significant radius of curvature. [22] Wyes and combo wyes abide by a protracted-sweep pattern[23] relative to sanitary tees and http://lorenzosdimo.diowebhost.com/22552719/details-fiction-and-valves-and-fittings