If the equipment is going to be based off of the same ceiling level, then you should use the same Reference Plane (or Level) to host them both. As I mentioned previously, Ducts must be associated with a Level, not a Reference Plane.
River Itchen. The River Itchen is a beautiful chalk stream which flows for approximately 28 miles from mid-Hampshire to Southampton.he source of the Itchen is situated in Cheriton, near Alresford, and flows down to the historic city of Winchester passing through nature reserve Winnall Moors, and Winchester City Mill.
For much of its length the River Itchen is divided into two or more separate channels running parallel to each other, including the Itchen Navigation. This is a modified part of the river and a former canal which runs for just over 10 miles from Wharf Bridge in Winchester to Woodmill in Southampton.A public footpath called the Itchen Way runs next to the Navigation along its entire length.he source of the Itchen is situated in Cheriton, near Alresford, and flows down to the historic city of Winchester passing through nature reserve Winnall Moors, and Winchester City Mill.