Before pumping, find tank covers, call utility to mark lines, ventilate location, and stage pipes, filters
https://wiki-dale.win/index.php/Choosing_a_Specialist_for_Sewage-disposal_Tank_Pumping_and_Cleansing_on_a_Spending_plan
Before pumping, locate tank lids, call utility to mark lines, aerate area, and stage hose pipes, filters, and PPE to make sure safe, efficient access without destructive landscaping or buried utilities.