We live in a world where most contractors still build up their manifolds by hand,using PVC, primers, and glues. The rationale is that it’s fast and cheap. But is it really? Hydro-Rain time trials show that even a fast contractor spends over 13 minutes to build the valve manifold out of PVC. Hydro-Rain’s HRM 100 manifold takes less than half that time. During the course of a year,a typical medium-size contractor will waste over 65 hours of time – more than a week and a half of productive labor– going with the “fast and cheap method.” It’s one of those cases where what looks like a savings, actually ends up costing you.