A well-maintained septic system can last decades—but only if you keep up with it. Just like a car needs oil changes, your septic system needs regular care to avoid backups, foul smells, and costly repairs.
Here’s your simple, no-nonsense septic system maintenance checklist to follow every year.

✅ 1. Inspect the Tank and System
At least once a year, have a professional inspect your tank, distribution box, and drain field. They’ll check for leaks, cracks, sludge levels, and root intrusion.
Tip: Keep a copy of every inspection report. It’ll help track your system’s health over time.
✅ 2. Check When It’s Due for Pumping
Your tank doesn’t need to be pumped every year—but checking when it’s due is a must. If it’s been 3–5 years, you’re probably due.
Use our guide to how often to pump your septic tank for a breakdown by household size and water usage.
✅ 3. Review What You’re Flushing
- Stick to toilet paper and human waste only
- No wipes, grease, feminine products, floss, or “flushable” anything
- Use septic-safe cleaners and biodegradable soaps
If you’ve added new residents or changed products, it’s a good time to reassess your flushing habits.
✅ 4. Inspect the Drain Field Area
- Look for soggy spots, unusually green grass, or smells
- Keep vehicles, livestock, and construction off this area
- Ensure nearby trees or shrubs haven’t grown too close
If anything’s off, schedule a service visit before damage spreads.
✅ 5. Clean Effluent Filter (If You Have One)
Some tanks have an effluent filter that needs cleaning annually. It helps catch solids before they reach the drain field.
This isn’t always a DIY job—ask your service pro during the inspection.
✅ 6. Test Your Well (If You Use One)
For homes with private wells, test your water for nitrates and bacteria. A failing septic system can contaminate your groundwater supply.
✅ 7. Keep a Maintenance Log
Create a simple log with these items:
- Inspection date and findings
- Pumping date
- Any problems spotted
- Repairs or service provider contact info
It’ll come in handy if you sell your home or need future repairs.
✅ Bonus: Mark the Tank Lid and Field Location
Use garden markers, pavers, or decorative rocks to show where your tank and lid are. This makes inspections and pumping easier (and cheaper) for everyone involved.
Make This Checklist a Habit
Set a yearly reminder to walk through these steps—spring or fall is ideal. With just a little upkeep, your septic system will keep working quietly in the background for years to come.
Not Sure How Old Your Tank Is?
Check out our full guide to how often to pump your septic tank and get on a regular maintenance schedule.