Open covers carefully, check inlet and outlet baffles and tees, document fractures or deterioration

https://record-wiki.win/index.php/Specialist_Septic_Tank_Maintenance_%26_Pumping:_Affordable_Service_List

Open covers thoroughly, check inlet and outlet baffles and tees, document fractures or deterioration, and repair seals to stop groundwater invasion and exfiltration that can overload the drainfield.