Wyes are just like tees, except for the angling of the department line to reduce friction and turbulence. They are commonly applied to connect a vertical drainpipe into a horizontal 1. The connection is often at a 45-degree, in lieu of 90 levels; if a department turns out more at http://valvesandfittings77518.blogs-service.com/17915800/5-simple-statements-about-valves-and-fittings-explained