Typical ranges
| Part | Typical life with good care |
|---|---|
| Concrete tank | several decades |
| Plastic tank | several decades |
| Old steel tank | often much shorter — prone to rust |
| Drain field | often 20–30 years or more |
What shortens a system's life
- Not pumping the tank, letting solids reach the field
- Too much water at once — leaks, back-to-back laundry
- Grease, wipes and chemicals down the drain
- Driving or parking on the field
- Trees and shrubs near the field
What helps
- Pump the tank every few years, based on household size
- Clean the effluent filter
- Fix leaking fixtures
- Keep the field clear and undisturbed
Septic questions
How often should I pump my tank?
Commonly every 3–5 years, depending on tank size and household.
Do septic additives help?
Generally not needed for a properly used system.
Can an old system be inspected?
Yes — call (505) 886-7941.