Procedure sludge and scum with a sludge judge to verify pumping need

https://wiki-fusion.win/index.php/Septic_System_Emptying_Set_Up_and_also_Absolute_Best_Practices_for_Long-Term_Device_Health

Measure sludge and residue with a sludge judge to verify pumping need, then mix contents carefully to suspend solids so the vacuum truck eliminates both layers, avoiding obstructions and early refilling.