What is a common consequence of improper routing of sewage inlet and discharge lines?

Improper routing of sewage inlet and discharge lines can lead to an increased risk of siphoning due to variances in pressure and gravity along the system. When sewage lines are not correctly configured, they can create conditions where air can enter the lines or where a vacuum forms, undermining the proper function of the gravity flow system. This can cause the sewage to be pulled back toward the head of the system or even into other areas, thereby risking contamination and malfunctions.

This issue is particularly critical as it compromises the integrity and safety of the entire sewage system. Proper routing helps ensure that gravity can operate effectively and that ventilation is adequate to prevent such siphoning issues. In contrast, improper routing may lead to other problems, such as backups or overflows, which can be just as detrimental but are secondary to the direct siphoning problem created by inadequate line configurations.