Step sludge and residue with a sludge judge to validate pumping need

https://wiki-site.win/index.php/Expert_Septic_System_Maintenance_%26_Pumping:_Affordable_Service_List_66577

Procedure sludge and residue with a sludge judge to confirm pumping need, then blend contents gently to suspend solids so the vacuum truck gets rid of both layers, preventing blockages and premature refilling.