Homeowner Resource
Septic System Maintenance Guide
Proper septic system maintenance can extend the life of your system, prevent costly repairs, and protect your family’s health. Here’s how your system works and what you can do to keep it running for decades.
Quick reference
- Inspect every year
- Pump about every 3 to 5 years
- Flush only human waste and toilet paper
- Protect the drainfield: no driving or trees
Questions? Call SES812-579-5974
01
Why Septic Maintenance Matters
Your septic system works around the clock to safely manage and treat the wastewater generated by your home. Although it operates out of sight, regular maintenance is essential to keeping it functioning properly and avoiding costly problems.
Routine inspections and pumping help extend the life of your system, improve performance, and reduce the risk of unexpected failures. In many cases, preventive maintenance costs significantly less than repairing or replacing a failed system.
Proper maintenance also protects your family’s health and the environment. When septic systems fail, untreated wastewater can contaminate nearby groundwater, wells, streams, and other water sources.
A well-maintained system also helps preserve property values and prevent sewage backups, foul odors, and soggy areas in the yard.
Did you know? Replacing a failed septic system can cost thousands of dollars, while routine inspections and pumping are relatively inexpensive preventive measures.
02
How Your Septic System Works
A conventional septic system is designed to safely collect, treat, and disperse household wastewater. Understanding how it works helps you make informed maintenance decisions and protect your investment.
Every time you flush a toilet, shower, wash dishes, or do laundry, wastewater flows from your home into the septic tank. Inside the tank, it separates into three layers:
TOP LAYER
Scum
Grease, oils, and lighter materials float to the top of the tank.
MIDDLE LAYER
Effluent
The partially treated liquid wastewater that flows out to the drainfield.
BOTTOM LAYER
Sludge
Heavy solids settle to the bottom. Bacteria break some down, but not all, which is why periodic pumping is necessary.
A typical septic tank: wastewater enters through the inlet tee, separates into layers, and effluent leaves through the outlet tee to the drainfield.
As new wastewater enters the tank, the effluent flows out to the drainfield, a network of perforated pipes that distributes it into the surrounding soil. Naturally occurring microorganisms in the soil provide additional treatment, removing harmful bacteria, viruses, and other contaminants before the water returns to the environment.
Problems occur when excessive water use overwhelms the system or when solids escape the tank and enter the drainfield. This can clog the drainfield, reduce its effectiveness, and lead to costly repairs or replacement.
Routine inspections, regular pumping, water conservation, and proper use all play an important role in keeping your system working efficiently.
With proper care and maintenance, a septic system can provide reliable service for decades.
03
How Often Should You Inspect & Pump Your Septic System?
Regular inspections and pumping are among the most important steps you can take to protect your septic system. While every household is different, most systems should be professionally inspected at least once a year to make sure they’re operating properly and to determine whether pumping is needed.
Pumping frequency depends on tank size, the number of people in the home, water usage habits, and whether a garbage disposal is used. Larger households typically need more frequent pumping because solids accumulate faster.
During an inspection, a technician evaluates the tank’s condition, measures sludge and scum levels, inspects key components such as baffles and tees, and looks for early signs of trouble. Catching issues early helps extend system life and reduce the risk of backups or drainfield failure.
Learn about our septic tank cleaning and inspection services.
Waiting until you have sewage backups, foul odors, or slow drains often means the problem has already progressed.
Maintenance Timeline
Inspection & Pumping Timeline
EVERY YEAR
Annual Inspection
Have your septic system inspected by a qualified professional every year.
EVERY 3 TO 5 YEARS
Routine Pumping
Most residential septic tanks should be pumped approximately every three to five years.
IT DEPENDS
Additional Factors
Household size, tank capacity, garbage disposals, and water usage habits can all affect how often pumping is needed.
Not sure where your drainfield is?
Protecting your drainfield is one of the most important steps in extending the life of your septic system. Our team can help locate your system components and recommend maintenance for your property.
04
What NOT to Flush
Your septic system is designed to treat household wastewater, not to serve as a garbage disposal. Flushing the wrong items can clog pipes, disrupt the beneficial bacteria in your tank, and increase the risk of backups or system failure. Many of these materials don’t break down in a septic system and can cause blockages, excess sludge buildup, or drainfield damage.
The rule: only human waste and toilet paper should be flushed. Everything else belongs in the trash.
Never flush:
- “Flushable” wipes
- Paper towels
- Facial tissues
- Feminine hygiene products
- Cotton swabs & cotton balls
- Dental floss
- Cigarette butts
- Disposable diapers
- Condoms
- Kitty litter
- Medications
- Grease, fats & cooking oils
- Coffee grounds
- Food scraps
- Harsh chemicals & drain cleaners
- Paints, solvents & pesticides
Good rule of thumb
If you’re unsure whether something is safe for your septic system, it’s best to throw it away rather than flush it. Good flushing habits are one of the easiest ways to extend the life of your system and avoid unexpected repairs.
Avoid harmful chemicals
05
Conserve Water to Protect Your Septic System
Water conservation is one of the simplest ways to extend the life of your septic system. When too much water enters the system in a short time, solids can be carried from the tank into the drainfield, increasing the risk of clogs, backups, and premature failure.
Small adjustments to your daily routine can have a lasting impact on your system’s health and performance.
Did you know? Using large amounts of water in a short period can overwhelm your septic system and force solids into the drainfield, potentially leading to expensive repairs.
Tips for conserving water at home
- Repair leaking faucets and running toilets promptly
- Spread laundry loads throughout the week
- Run dishwashers and washing machines only with full loads
- Install water-efficient showerheads, faucets, and low-flow toilets
- Turn off the water while brushing teeth or shaving
- Take shorter showers
- Choose ENERGY STAR® appliances that use less water
- Divert roof drains, sump pumps, and other excess water away from the drainfield
Quick Rules
Septic System Do’s & Don’ts
Do
Septic System Do’s
- Have annual inspections
- Pump regularly
- Repair leaks
- Maintain service records
- Know where your system is located
Don’t
Septic System Don’ts
- Drive over the system
- Plant trees over the drainfield
- Flush inappropriate materials
- Use septic additives
- Enter a septic tank
Prefer a printable version?
Download the Homeowner’s Guide
Keep a printable reference on hand. Maintaining Your Septic System: A Guide for Homeowners is a free 7-page guide covering:
- Why maintenance matters
- What not to flush
- How to care for your system
- Using water wisely
Published in Pipeline (Fall 2004) by the National Environmental Services Center at West Virginia University.
Time for a Septic Checkup?
Call SES to schedule an inspection or pumping, or request service online. We’ll help keep your system running smoothly for years to come.