Inspect and pump
EPA recommends household systems be inspected at least every 3 years, with typical tanks pumped every 3 to 5 years. More complex systems may need annual or otherwise more frequent service.
Use water efficiently
Spread high-water-use activities out rather than overwhelming the system. Repair leaks and avoid sending unnecessary water to the septic system.
Flush only appropriate waste
Human waste and toilet paper belong in the toilet. Keep wipes, hygiene products, grease, trash, paint, pesticides, solvents, and hazardous chemicals out of the system.
Protect the drainfield
Do not drive or park over the septic system. Avoid structures and deep-rooted trees in treatment areas. Direct roof, sump, and surface drainage away from the field.
Keep records
Save permit drawings, pump-out records, inspection reports, repairs, and equipment manuals. Good records make service, resale, and future troubleshooting easier.
Use local rules for property-specific decisions
Septic design and permitting are location-specific. Before building, buying, repairing, adding bedrooms, or changing a property served by septic, confirm the current requirements with the local health/environmental authority.