I have different pipe sizes in a profile yet they all are scaled at 12" (ie. 30" pvc = 12"; 10" pvc = 12"). Why? All my drawings are scaled at 1"=20' Hz. and 1"=5' Vt.
I could swear that I've read somewhere about a setting (but I can't remmeber where I read it or where the setting is) that if the pipe diameter is smaller than x, display it as y. I would assume that goes for profiles as well as plans.
I jsut found one possibility. Are all pipes that have the same style assigned doing this?
If so, look at the pipe style definition.