What is the required distance from the top of the baffle to the bottom of the lid?

The required distance from the top of the baffle to the bottom of the lid is established to ensure proper functioning of the sewage system and to promote effective waste treatment while minimizing the risk of overflow or clogging. A distance of 1 inch to 3 inches is optimal because it helps maintain necessary fluid levels in the tank, allowing the sewage to separate appropriately, and ensuring there’s enough space for gases to escape without causing backups. This range also facilitates access for maintenance while preventing debris from entering the tank that could interfere with its operation.

If this distance is maintained within the specified range, it contributes to the overall efficiency and reliability of the waste treatment process, thereby complying with established guidelines for private sewage systems in Illinois. This understanding of operational requirements is essential for any private sewage contractor, as it directly impacts the longevity and efficacy of sewage systems.