Thought I'd throw this out there, as I've seen it done several ways. Just curious what folks here would say is the "right" way to do it. What's your standard procedure for the inlet side of a plastic valve? Regular Sch. 40 male adapter off of Sch. 40 manifold? A Sch. 80 male adapter (harder to find, seems much more expensive) off Sch. 40 manifold? A threaded Sch. 80 pipe (half a nipple) off a Sch. 40 coupling off a Sch. 40 manifold? A Sch. 80 nipple off a Sch. 40 female adapter? Something else? (Use all solvent-weld valves? Hah.) For purposes of this, we assume no poly pipe involved, a Sch. 40 mainline of some size larger than the valve itself. Just wondering, and thanks to all for the many insights and bits of education this forum offers to those of us who usually just lurk.