A: No, these are just the valves and solinoids in a manifold. Easy hook up and install as long as existing pipes are close to same spacing. I had to make minor mods due to spacing being a bit wider, but not too difficult.
A: There is no bleed screw on our Orbit pre-assembled manifolds because our Orbit inline valves do not have bleed screws.
A: Turn the black knobs with the wires on them toward "on" (left) about a quarter turn until you hear the water running through, then close them by turning back to the right.
A: No, these are not anti-siphon valves.
A: Most valves purchased at Home Depot for irrigation purposes can hook up directly to the Orbit controller. No additional wiring necessary.