P-Trap Orientation

[Anonymous]

I am running designlines for waste and vent with sanitary fittings. I have places where I need to put p-traps. Some p-traps come in at the correct orientation. However,most of them I am placing do not.

[rptjr]

I think that has to do with your source point. Source should be the lowpoint of the sanitary system. On vent I make it the high point.

Where is your source point on the affected p-traps?

[greg.mosher]

It not only has to do with the Source Point but the direction of takeoff for the P-Trap. For Desig Line you want the direction in to be from the top of the P-Trap and not the leg. With the attacher arrow it would be reversed with the direction in from the leg. We use the P-Trap with Design Line and the attacher arrow so I have a button script set to "takeoff by other end" set as the default.

[bknapton]

It depends on the design line source along with flow direction.

[lei.qiao]

Following two items will impact the direction of the P-Trap.

• The location of inlet & outlet of the P-Trap. the settings should make the connection indicators the same with 2nd image.

• The setting of the service. It must be set as "Extract" for the drainage service.

When both above settings are correct, the behavior of the P-Trap will be correct. You could check if the P-Trap with incorrect behavior has the incorrect settings.

Hope my reply will be helpful.

[Anonymous]

I too have this same problem and all of the solutions listed on this thread do not fix the issue. Is there anything else that could control this?