Understanding Septic Systems In East Tennessee

If you are buying a home in East Tennessee, especially outside city limits, there is a good chance you may run into a property with a septic system.

For buyers moving from larger cities or subdivision neighborhoods, septic systems can feel confusing at first. Many people are used to public sewer and have never had to think about where wastewater goes after it leaves the house.

But in rural parts of Sullivan County, Washington County, Hawkins County, Carter County, Greene County, and surrounding areas, septic systems are very common.

The more you understand them before buying, the better prepared you will be.

What Is A Septic System?

A septic system is an underground wastewater treatment system used when a home is not connected to public sewer.

In a basic system, wastewater from the home flows into a septic tank. Solids settle in the tank, while liquid wastewater flows out into a drain field, also called a leach field or soil absorption field.

The soil then helps filter and treat the wastewater naturally.

That may sound simple, but the design, size, location, and condition of the system matter a great deal.

Why Septic Systems Are Common In East Tennessee

East Tennessee has many rural homes, older homes, mountain properties, farms, wooded lots, and acreage properties. Public sewer is not available everywhere, especially outside city limits.

That is one reason septic systems are common in this area.

You may find septic systems on:

• Homes with acreage
• Rural properties
• Mountain-view homes
• Older farmhouses
• Homes outside city limits
• Properties on private roads
• New construction in areas without public sewer

For many buyers, a septic system is not a problem. It is simply part of owning rural property.

But it does need to be understood and maintained.

Septic Approval Is Important

Before buying land or a home with a septic system, it is important to know whether the property has proper septic approval.

In Tennessee, septic systems are regulated through the Tennessee Department of Environment and Conservation, often referred to as TDEC.

If someone wants to install a new septic system or repair an existing failing system, a septic system construction permit is generally required.

This matters because not every piece of land can support a septic system.

Soil type, slope, drainage, rock, available space, and the location of wells, driveways, structures, and property lines can all affect whether a septic system can be installed.

A 100-Foot Septic Line May Sound Simple, But There Is More To It

I recently dealt with a new septic installation that involved a 100-foot septic line. That experience was a good reminder that septic systems are not one-size-fits-all.

A buyer may hear “100 feet” and assume that is the standard answer.

It is not.

The amount of septic line or drain field needed depends on several factors, including:

• Number of bedrooms
• Soil conditions
• Site evaluation
• Lot layout
• Slope
• System design
• Local approval
• Type of septic system
• Available repair area

A 100-foot line may work for one property, while another property may need something completely different.

That is why buyers should never guess when it comes to septic. Always verify.

Septic Systems Are Usually Based On Bedrooms

One thing that surprises many buyers is that septic approval is often tied to bedroom count.

A home may have plenty of square footage, bonus rooms, basement space, or extra finished areas, but the septic system may only be approved for a certain number of bedrooms.

For example, if a property is approved for a two-bedroom septic system, that matters even if the home has extra rooms that could be used in different ways.

This is especially important when buyers are considering:

• Adding bedrooms
• Finishing a basement
• Building an addition
• Converting space into sleeping areas
• Buying land to build on later

Before making plans, confirm what the septic system is approved to handle.

What Buyers Should Ask About The Septic System

When buying a home with a septic system, buyers should ask several important questions:

• Where is the septic tank located?
• Where is the drain field located?
• How old is the system?
• Has it been pumped recently?
• Are there maintenance records?
• How many bedrooms is it approved for?
• Has it ever failed or needed repairs?
• Are there signs of drainage problems?
• Is there a repair area available?
• Has the system been inspected?

These questions can help buyers avoid expensive surprises after closing.

Signs Of Possible Septic Problems

A septic system is underground, so problems are not always obvious during a showing.

However, buyers should watch for warning signs such as:

• Slow drains
• Gurgling toilets
• Sewage odors
• Wet or soggy areas near the drain field
• Standing water in the yard
• Bright green grass over the drain field
• Sewage backing up into the home
• Drainage problems after heavy rain
• A septic alarm going off, if the system has one

These signs do not automatically mean the deal is dead, but they do mean the system needs further evaluation.

East Tennessee Soil And Rock Can Matter

East Tennessee is beautiful, but the land can be challenging.

Rocky ground, steep slopes, clay soil, shallow soil, and drainage issues can all affect septic design and installation.

In some areas, a standard septic system may work fine. In other areas, the property may need an alternative system, engineered design, or additional evaluation.

This is especially important for buyers considering vacant land.

Just because land looks beautiful does not mean it will support the home you want to build.

Do Not Drive Over The Drain Field

Once you know where the septic tank and drain field are located, protect them.

Avoid:

• Driving over the drain field
• Parking vehicles on it
• Building sheds or structures over it
• Planting trees with deep roots nearby
• Covering it with concrete or pavement
• Allowing heavy equipment to cross it

The drain field is one of the most important parts of the septic system. Damage to it can be expensive.

What Should And Should Not Go Down The Drain

A septic system works best when homeowners are careful about what goes into it.

Good septic habits include:

• Using water efficiently
• Fixing leaks quickly
• Spreading out laundry loads
• Pumping the tank as recommended
• Keeping records of service
• Knowing where the tank and drain field are located

Avoid flushing or pouring things like:

• Grease
• Wipes
• Feminine hygiene products
• Paper towels
• Harsh chemicals
• Paint
• Motor oil
• Coffee grounds
• Excess food waste
• Medications

Even products labeled “flushable” can cause problems in septic systems.

Septic Inspections Are Worth Considering

When buying a home with a septic system, a septic inspection can be very valuable.

A general home inspection may not fully evaluate the septic system. Buyers may need a qualified septic professional to inspect the tank, lines, drain field, and overall function of the system.

A septic inspection may help identify:

• Tank condition
• System location
• Signs of failure
• Pumping needs
• Drainage concerns
• Improper connections
• Potential repair issues

This can be especially important on older homes, rural properties, and homes where records are limited.

Septic Systems And Resale Value

A properly functioning septic system can serve a home well for many years.

But an unknown, failing, or poorly maintained system can create major problems when it is time to sell.

Buyers and future lenders may ask questions about the system. Appraisers, inspectors, and loan programs may also raise concerns depending on the property and transaction.

Keeping records of pumping, repairs, inspections, and permits can help protect your investment.

Buying Land? Do Not Skip Septic Due Diligence

If you are buying vacant land in East Tennessee, septic should be one of the first things you investigate.

Before closing on land, buyers should find out:

• Has the land had a soil evaluation?
• Is there an approved septic permit?
• How many bedrooms can the system support?
• Where would the home site be?
• Where would the driveway go?
• Is there enough room for the system and repair area?
• Are there wells, springs, creeks, or drainage issues nearby?
• Will the land support the type of home you want?

Without septic approval, a piece of land may not be usable for your intended purpose.

The Bottom Line

Septic systems are common throughout East Tennessee, especially on rural homes and properties outside city limits.

They are not something to fear, but they are something to understand.

Before buying a home or land with a septic system, make sure you know what type of system is in place, whether it is functioning properly, how many bedrooms it supports, and whether the property has the proper permits and approvals.

A septic system may be underground, but it should never be overlooked.

Thinking About Buying A Home Or Land In East Tennessee?

If you are looking at rural property, acreage, or a home with a septic system in the Tri-Cities area, I would be happy to help you know what questions to ask before making an offer.

Contact John S. Wagner

Weichert, Realtors®- Saxon Clark
Independently Owned and Operated
555 E. Main St Suite 101
Kingsport, TN 37660

Cell: 423-276-3392
Office: 423-765-9118
Email: WagsworldRealtor@gmail.com
Website: WagsworldRealtor.com

Let me help you find what you're looking for in your next home.