Open lids carefully, check inlet and outlet baffles and tees, file fractures or rust
https://padlet.com/romanmail5050cutyc/bookmarks-6gav22mwe9tzx80k/wish/wKmOZ57nRrxyazMA
Open lids carefully, check inlet and outlet baffles and tees, file fractures or rust, and repair seals to stop groundwater intrusion and exfiltration that can overload the drainfield.