manifold height

[Dave Maxwell]

Is there a standard manifold height? Also with my kit. There are metal corners. Are those to be used to isolate the tubes as they exit the concrete. Blueridge still hasn't got me any Nolans. I got loop cad and did my own.

 

[jack stand]

Dave I'm not a pro, but after installing my sys., I see no proper height off the floor other than enough "room" to gently be able to bend the tubing back to the manifold and enough vertical space between the manifold and tubing exiting the slab for making a convienient connection to the manifold. I held mine up at about waist level or a little below. This gave me enough room for connections and sitting on a drywall bucket was just right! For your metal corners, not sure. I've seen them used for an aid in a tight radius bend such as going in or out of a 31/2" wall. I used PVC electrical 90's (conduit) on 1 manifold, and found this nifty pre made plastic thing that was molded to do the same thing but it had room for about 10 lines (next to each other) and was much easier to make a "pretty" job out of it than trying to secure all the 90's in a nice row.
http://www.pexsupply.com/EZ-Route-PEX-Routing-11203000