Dispose of septage at permitted facilities just, disinfect devices, deodorize tubes
https://wiki-site.win/index.php/Sewage-disposal_Tank_Pumping_and_Installation:_Cost-Effective_Solutions_You_Can_Trust
Dispose of septage at permitted centers only, sanitize devices, deodorize pipes, and protected covers and risers flush with grade to prevent hazards, odors, and groundwater contamination.