On Thu, 20 May 2010 22:48:29 -0700 (PDT), DD_BobK
wrote:

BTW if oyu choose to use manifolds, they get used in paired sets; hot
& cold.
So a house needs a hot manifold & a cold manifold. Same with local
manifolds

I haven't seen "paired sets". My manifold is a single unit. Hot on the
left and cold on the right. I guess if is molded fiberglass.

I've seen some really nice manifolds made of copper with brass ball
valves (good plumber) at the manifold. They were cobbled together on
site for near 5K s.f. homes.