MOVING HYDRANTS IN WATERGEMS

I have set up a watermodel with my water main, hydrants, and services from each home. If the layout of my hydrant has changed, is there a way to shift these without deleting everything I have setup? When I try to drag and drop them it messes up my watermain layout. This may be because my services are connected from a customer meter to a tap on the water main by a lateral. Any advice on the best way to shift these??