Ownership and maintenance hub

What Maintenance Does a Septic System Need?

Septic care is a short routine you repeat for decades. Regular care helps prevent avoidable failures and gives you a useful service record when you sell.

How do you maintain a septic system?

Have the system inspected at least every three years and pump the tank every three to five years, based on measured sludge and scum. Day to day, flush only toilet paper and waste, fix leaks, and spread out laundry. Keep cars, buildings, and tree roots off the drainfield. Pumped systems generally need annual checks. Tennessee aerobic systems normally require service every three months, unless TDEC approves a different interval.

What does a septic maintenance schedule look like?

How often: Every day
What you do: Flush only toilet paper and waste. Keep grease, wipes, and chemicals out.
What a pro does: Nothing
What to keep: A note if drains, smells, or the yard change

How often: Monthly
What you do: Look for running toilets, drips, alarm lights, and water pooling over the field
What a pro does: Come out for an alarm, sewage, or repeat wet spots
What to keep: A dated photo when something changes

How often: Each season
What you do: Walk the field from dry ground. Check for sinking, erosion, new roots, and runoff.
What a pro does: Fix grading or drainage before the wet season
What to keep: Before-and-after photos

How often: Every year, or more often under the permit
What you do: Review the sketch, contacts, and service dates
What a pro does: Service pumps, floats, alarms, and filters; Tennessee aerobic units normally need quarterly visits
What to keep: The signed service report

How often: At least every 3 years
What you do: Clear safe access and share your water and alarm history; let the provider open lids
What a pro does: Inspect the tank, baffles, filter, distribution, and field
What to keep: Report with sludge and scum depths

How often: Every 3 to 5 years
What you do: Book it before a backup, not after
What a pro does: Pump every compartment, scum and sludge
What to keep: Receipt with gallons, levels, and next date

How often: Before a sale or project
What you do: Pull records. Know your bedrooms, system type, and reserve area.
What a pro does: Inspection, plus TDEC review for an addition, pool, well, or driveway
What to keep: Report, permit decision, and updated sketch

How often	What you do	What a pro does	What to keep
Every day	Flush only toilet paper and waste. Keep grease, wipes, and chemicals out.	Nothing	A note if drains, smells, or the yard change
Monthly	Look for running toilets, drips, alarm lights, and water pooling over the field	Come out for an alarm, sewage, or repeat wet spots	A dated photo when something changes
Each season	Walk the field from dry ground. Check for sinking, erosion, new roots, and runoff.	Fix grading or drainage before the wet season	Before-and-after photos
Every year, or more often under the permit	Review the sketch, contacts, and service dates	Service pumps, floats, alarms, and filters; Tennessee aerobic units normally need quarterly visits	The signed service report
At least every 3 years	Clear safe access and share your water and alarm history; let the provider open lids	Inspect the tank, baffles, filter, distribution, and field	Report with sludge and scum depths
Every 3 to 5 years	Book it before a backup, not after	Pump every compartment, scum and sludge	Receipt with gallons, levels, and next date
Before a sale or project	Pull records. Know your bedrooms, system type, and reserve area.	Inspection, plus TDEC review for an addition, pool, well, or driveway	Report, permit decision, and updated sketch

Treat the calendar as a reminder. A small tank, a big household, a garbage disposal, a rental, or a recurring alarm all mean a shorter schedule.

Download the one-page septic maintenance checklist

Print one for the utility room and keep one with your TDEC record. It covers daily, monthly, and yearly tasks, plus inspections, pumping, field protection, emergencies, contacts, and a service log.

Free one-page PDFMaury Septic Maintenance ChecklistLetter-size PDF, one page, with fill-in property fields and a three-line service log.

How can you save water to protect your septic system?

Every gallon you use has to pass through the tank and soak into the drainfield. EPA puts average indoor use at up to 70 gallons per person per day, so a family of four can send the field close to 300 gallons daily.

Fix running toilets first

EPA says one leaky or running toilet can add up to 200 gallons a day. That's often more than an extra person. Drop food coloring in the tank, wait, and check the bowl for color.

Spread out laundry

Run a load or two a day instead of a full laundry day. Back-to-back loads rush water through the tank before solids settle. EPA notes ENERGY STAR washers use about 50% less water.

Know where big drains go

Large tubs, water softeners, and pool filters can dump a lot of water at once. Find out where softener backwash and pool water go, and keep them out of the septic unless the design allows it.

Stay within your permit

Tennessee systems are sized for a set number of bedrooms. An added bedroom, a rental unit, or a home daycare can overload the field no matter how careful you are. In much of Maury County, shallow soil over limestone gives the field less room for error.

What should never go down a septic drain?

Type: Things that clog
Keep out: "Flushable" wipes, paper towels, feminine products, diapers, floss, cotton swabs, cat litter
Why: They don't break apart like toilet paper and can block pipes, filters, and pumps

Type: Kitchen waste
Keep out: Grease, oil, coffee grounds, and heavy garbage-disposal use
Why: Adds scum and solids, so you pump more often

Type: Chemicals
Keep out: Paint, solvents, pesticides, fuel, drain cleaners, lots of bleach
Why: Kills the bacteria in the tank and can reach groundwater

Type: Medicine
Keep out: Unused prescription and over-the-counter drugs
Why: Septic systems aren't built to remove them. Use a take-back drop box.

Type: Clean water
Keep out: Roof drains, sump pumps, footing drains, pool water
Why: Floods the field with water that doesn't need treatment

Type: Additives
Keep out: Enzymes, yeast, or bacteria sold to replace pumping
Why: EPA says routine additives generally aren't needed and don't remove settled solids

Type	Keep out	Why
Things that clog	"Flushable" wipes, paper towels, feminine products, diapers, floss, cotton swabs, cat litter	They don't break apart like toilet paper and can block pipes, filters, and pumps
Kitchen waste	Grease, oil, coffee grounds, and heavy garbage-disposal use	Adds scum and solids, so you pump more often
Chemicals	Paint, solvents, pesticides, fuel, drain cleaners, lots of bleach	Kills the bacteria in the tank and can reach groundwater
Medicine	Unused prescription and over-the-counter drugs	Septic systems aren't built to remove them. Use a take-back drop box.
Clean water	Roof drains, sump pumps, footing drains, pool water	Floods the field with water that doesn't need treatment
Additives	Enzymes, yeast, or bacteria sold to replace pumping	EPA says routine additives generally aren't needed and don't remove settled solids

How do you protect your drainfield?

Treat the field and reserve area as part of the system

Keep cars, trailers, delivery trucks, and heavy equipment off
Don't build a shed, deck, pool, patio, or driveway over it
Plant grass. Keep trees, shrubs, and vegetable gardens away.
Point downspouts, sump pumps, and driveway runoff away from it
Don't add fill, strip topsoil, till, or lay landscape fabric over it
Mark it before fencing, trenching, or grading
Keep lids, filters, and panels reachable
Check any wet strip or sinking spot against the permit sketch right away

What extra maintenance does an aerobic or pump system need?

Part: Pump and floats
What it needs: Check cycles, float movement, and mounting at each service
Warning sign: High-water alarm, no pump cycle, tripped breaker
Leave to a pro: Don't reach into the chamber or lift floats

Part: Alarm and panel
What it needs: Test as the manual says. Keep it powered, dry, and visible.
Warning sign: Red light, buzzer, error code, or blank screen
Leave to a pro: Silence the buzzer if allowed, but never disable the alarm

Part: Aerator or blower
What it needs: Airflow, filter, and manufacturer service items
Warning sign: Unusual noise, odor, or no air
Leave to a pro: Normal water level doesn't mean treatment is working

Part: Effluent or drip filter
What it needs: Cleaning on the system's schedule
Warning sign: Slow flow, high pressure, or a zone alarm
Leave to a pro: Cleaning it wrong can push debris to the field

Part: Disinfection stage
What it needs: Supplies and service if your system has one
Warning sign: Service light or empty tablet feeder
Leave to a pro: Use only the approved product

Part: Tennessee maintenance contract
What it needs: Rule 0400-48-01-.23 sets ongoing duties for covered alternative systems
Warning sign: Expired contract, missed visits, or a new owner who never transferred it
Leave to a pro: Keep the contract active and every report on file

Part	What it needs	Warning sign	Leave to a pro
Pump and floats	Check cycles, float movement, and mounting at each service	High-water alarm, no pump cycle, tripped breaker	Don't reach into the chamber or lift floats
Alarm and panel	Test as the manual says. Keep it powered, dry, and visible.	Red light, buzzer, error code, or blank screen	Silence the buzzer if allowed, but never disable the alarm
Aerator or blower	Airflow, filter, and manufacturer service items	Unusual noise, odor, or no air	Normal water level doesn't mean treatment is working
Effluent or drip filter	Cleaning on the system's schedule	Slow flow, high pressure, or a zone alarm	Cleaning it wrong can push debris to the field
Disinfection stage	Supplies and service if your system has one	Service light or empty tablet feeder	Use only the approved product
Tennessee maintenance contract	Rule 0400-48-01-.23 sets ongoing duties for covered alternative systems	Expired contract, missed visits, or a new owner who never transferred it	Keep the contract active and every report on file

What records should you keep for your septic system?

A receipt that just says "pumped" doesn't tell you much. Ask the pumper to write down which compartments were opened, whether scum and sludge came out, the layer depths, the condition of the baffles and filter, and whether water flowed back from the field.

When you sell, hand the buyer the whole folder. TDEC's Columbia Environmental Field Office keeps the official permit records for Maury County, and you can search them online through the state's SSDS viewer. Keep your copy matching theirs.

Keep paper and digital copies

TDEC soil map, construction permit, final approval, and sketch
Approved bedroom count, tank size, system type, and reserve area location
Contacts for your installer, pumper, and service provider
Every inspection, pumping, repair, and contract report
Sludge and scum depths and why the next date was chosen
Manuals for the pump, alarm, aerator, and filter
Dated photos tied to fixed landmarks like house corners

When is it an emergency instead of routine maintenance?

What you see: Sewage backing up or surfacing
Do this now: Stop using water, keep people and pets away, call for service
Why it can't wait: Raw sewage is a health hazard and more water makes it worse

What you see: Alarm stays on or keeps coming back
Do this now: Silence the buzzer, cut water use, photo the panel, and call
Why it can't wait: The pump chamber's reserve space runs out

What you see: Broken lid or sinking ground
Do this now: Keep everyone away, including kids and pets
Why it can't wait: A person can fall into a tank

What you see: Wet electrical equipment
Do this now: Stay out of the water. Shut power off only from a dry, safe spot.
Why it can't wait: Sewage, water, and electricity together can kill

What you see: Several drains slow at once
Do this now: Hold off on laundry and baths and get it checked
Why it can't wait: A clog or full tank can become a backup quickly

What you see	Do this now	Why it can't wait
Sewage backing up or surfacing	Stop using water, keep people and pets away, call for service	Raw sewage is a health hazard and more water makes it worse
Alarm stays on or keeps coming back	Silence the buzzer, cut water use, photo the panel, and call	The pump chamber's reserve space runs out
Broken lid or sinking ground	Keep everyone away, including kids and pets	A person can fall into a tank
Wet electrical equipment	Stay out of the water. Shut power off only from a dry, safe spot.	Sewage, water, and electricity together can kill
Several drains slow at once	Hold off on laundry and baths and get it checked	A clog or full tank can become a backup quickly

About our sources. Maury Septic uses the sources listed below, including EPA homeowner maintenance and water-efficiency guidance, Tennessee alternative-system duties, TDEC records, and permit documentation. Follow the links for the underlying rules, fees, and guidance.

Sources and further reading

EPA SepticSmart homeowner guidance
U.S. Environmental Protection Agency
Failure signs, maintenance, pumping, water use, and drainfield protection.
EPA septic-system malfunction guidance
U.S. Environmental Protection Agency
Current federal guidance on failure signs, water conservation, sewage-contact safety, professional diagnosis, and inspections of pumps, controls, wiring, tanks, and drainfields.
Tennessee SSDS regulations, Chapter 0400-48-01
Tennessee Department of Environment and Conservation
Official rule index for permits, design, maintenance, soil consultants, installers, and fees.
Tennessee Rule Chapter 0400-48-01
Tennessee Secretary of State
Official current chapter text governing Tennessee subsurface sewage disposal systems.
TDEC SSDS records search
Tennessee Department of Environment and Conservation
Official state viewer for locating septic-system permits, site sketches, and related records.
TDEC SSDS permit documentation standards
Tennessee Department of Environment and Conservation
Current state policy for digital permit sketches, attachments, reproducible field references, setbacks, and FileNet record quality.
Environmental Geology Atlas of Maury County
Tennessee Geological Survey
State-published geologic, unstable-materials, flood-prone-area, mineral-resource, and sinkhole maps for Maury County.

Septic maintenance: common questions

What is the most important septic maintenance task?

Pumping before solids escape to the drainfield, based on measured sludge and scum. If you're starting from scratch, pull your TDEC record, stop flushing anything but toilet paper, fix leaks, and book an inspection.

How do I set my septic pumping schedule?

Start with the three-to-five-year range and the chart on our pumping guide, then have the pumper measure sludge and scum each visit. How fast those layers grow in your tank sets the next date.

Do septic additives replace pumping?

No. EPA says routine additives generally aren't needed, and some can hurt the system. Sludge and scum still build up, and only a pump truck removes them.

Does an aerobic septic system need a maintenance contract in Tennessee?

Yes. Tennessee Rule 0400-48-01-.10 requires an active contract with an approved maintenance provider for the life of an advanced treatment system. Routine visits are every three months unless TDEC adjusts the interval. Drip systems also require a lifetime contract under .15. Keep the contract active, save every visit report, and pass it to the next owner.

Can I inspect my own septic system?

You can watch your drains, water use, yard, and alarm panel from safe, dry ground. Leave opening tanks and testing equipment to a pro, who can measure solids, check baffles and filters, and spot field problems you can't see.

Service history missing or a problem appeared

Do you need septic maintenance or repair?

Share your system type, last pumping or inspection, any alarm or symptoms, and the service you need. The request is free and doesn't replace emergency response.

Keep your permit, system sketch, and service records together. They help the next professional understand your property.