These rules primarily govern how the elevations of a pipe object are determined when the object is created. There are also rules to flag pipes that exceed certain values, such as maximum length, for example.
When a pipe rule is violated, you can complete the action, but a warning icon 
is displayed for the pipe object in the Network Entities Window (Panorama window or Toolspace item view), and on the Rules tab of the Pipe Properties dialog box. This indicates that a rule violation exists.
After a pipe object is created, you may make changes to the pipe that result in the pipe rules being violated. For example, you might move a pipe so that the Minimum Cover distance is not met.
Drag and drop functionality can be used to copy pipe rules. For more information, see Dragging Styles Within or Between Drawings.
The following sections describe the standard rules available for pipe objects.
Topics in this section
- Cover And Slope Rule
This rule ensures that a pipe slopes appropriately and warns when a pipe is placed too close to a ground surface.
- Cover Only Rule
This rule is intended for laying out pipes in a pressure-based pipe network where pipe elevations are determined according to a specified depth below a terrain.
- Length Check Rule
This rule governs the behavior that produces a warning condition on a pipe if the pipe length exceeds the value specified for the maximum pipe length, or is less than the value specified for the minimum pipe length.
- Pipe To Pipe Match Rule
This rule governs how a pipe elevation is determined in a pipe network that contains only pipes (no structures), and or when a pipe is inserted onto an existing pipe to break the pipe.
- Set Pipe End Location Rule
This rule allows you to set the start and end locations of the pipes to be at the structure center or at an offset relative to the structure's inner or outer wall.