> > Does anybody have information on the accepted norms, experience with > these `dry' pipe systems or data on them being less efficient? > > I look forward to your replies, Thanx. > > [log in to unmask] > Dear Glyn, I don't have any direct info for you, but I can suggest two places to try--the built-environment and the facilities-management bulletin boards (both geared to architecture, engineering, construction etc...). The addresses are: [log in to unmask] [log in to unmask] Chris Kant is the moderator for built-environment (in my old home town-Edinburgh, Scotland). If you like, I can cross-post your message there. Ann Morton Facilities Archive University of Rochester [log in to unmask]