What must a sewage ejector that serves a commercial installation use for reventing?

In a commercial installation, a sewage ejector must use a 2-inch vent for reventing. This size is significant because it allows for adequate air circulation and prevents the buildup of gases within the sewage system. A properly sized vent is crucial to ensure that the sewage ejector functions efficiently, as it helps to maintain proper pressure balance within the system and facilitates the smooth flow of sewage fluids.

Selecting a vent that is too small may lead to insufficient airflow, causing issues such as siphoning, odors, or even back pressure in the system. On the other hand, using a vent that is too large would be unnecessary and may not provide additional benefits while possibly increasing installation costs. The 2-inch vent size strikes an optimal balance for the requirements of typical commercial applications, ensuring that the system operates effectively while meeting code requirements.