Our water utility recently purchased a small municipal wastewater system and we are now looking at adding the sewer to our GIS. We're actually creating a separate (personal) geodatabase for the sewer using the ESRI Sewer Data Model. i have a simple question about this. We have about 1,500 sewer connections in this small municipality, about half of which have both a vent and a cleanout on the lateral. The model includes a cleanout feature type, but no vent feature. Has anybody got a simple solution to this situation? On the laterals, the vent is closer to the structure, with a trap at the bottom of it, and then the cleanout is between the vent and the main, which has a simple tee at the lateral. Anybody have any advice for this geodatabase construction situation??