Septic Tank vs. Public Sewer in Upstate South Carolina

City sewer is not automatically cheaper than keeping a working septic system. In Greer, the official Greer CPW new-construction fee schedule lists a $500 sewer tap fee and a $5,739 capacity fee for a standard 3/4-inch residential connection inside the city. That is $6,239 before the private sewer lateral, excavation, plumbing changes, and septic tank abandonment. The bills continue after the connection. Greer CPW’s 2026 wastewater rates include a $15.39 monthly facilities charge for inside-city residential customers, plus usage and sewer rehabilitation charges.

I’m John Rusev, co-owner of Rock Solid Septic ~ Excavation. I’ll explain when to keep your septic system and when switching to sewer makes more sense.

Quick Takeaways:

A standard Greer sewer connection starts at $6,239 as of July 2026, before any work on the property
A complete sewer estimate should include at least four additional costs: the private lateral, excavation, plumbing changes, and tank abandonment
Regular septic tank maintenance includes inspections every 1-2 years and pumping every 3-5 years
A Landrum owner paid $400 on May 8, 2026 to locate, pump, inspect, and document a hidden 1,000-gallon tank without replacing it

What Is a Public Sewer System?

A public sanitary sewer carries wastewater from homes and businesses to a centralized treatment facility. The property’s private sewer lateral connects the building to the public main sewer line, where the local utility takes over. The utility maintains the public sewer main and pump stations. It is also responsible for the treatment facilities. The property owner is usually still responsible for the private line between the building and the public connection. A blockage or break in that section may require private sewer line cleaning and repair. A new connection may also require excavation and a properly graded lateral from the building to the utility tap. Rock Solid provides sewer line installation in Greenville and surrounding Upstate communities.

What Is a Septic System?

A septic system is a private on-site wastewater treatment system. Wastewater leaves the house, enters the tank, and separates into solids, liquid, and floating material. The liquid then moves into the drainfield, where the soil finishes the treatment.

Key Differences Between Septic and Sewer Systems

Let’s see what homeowners pay for and maintain with each option.

Septic vs. Sewer Costs in Upstate South Carolina

Septic costs depend on the condition of the existing tank and drainfield. Sewer costs depend on the utility, the distance to the tap, capacity fees, excavation, and the private line between

Septic and Sewer Maintenance

Public sewer shifts responsibility for the main line to the utility, while the homeowner usually maintains the private line to the sewer tap. If only one home backs up, I check that line first. With septic, the owner is responsible for the entire system. SCDES recommends inspections every 1 to 2 years and pumping every 3 to 5 years, but the tank should be checked before pumping. The liquid level and solids near the outlet can reveal problems that disappear once the tank is empty.

Pumping does not replace an inspection. Never enter a septic tank because toxic gases and low oxygen can be fatal.

Real Septic Projects from Rock Solid

The condition of the existing system often matters more than its age or the fact that sewer may be available nearby. The projects below show why I do not recommend making the decision from a general cost table alone.

An Inman Backup That Required Repair, Not Just Pumping

A homeowner in Inman called us after the septic system began backing up. We located the tank, opened it, and pumped it so we could see what was actually happening. Once the tank was empty, it became clear that the problem was not simply accumulated waste. The system had an underlying issue that would have caused the backup to return. Our crew completed the full repair the following morning. The property went from a non-functioning system to restored drainage and a working septic system in less than 48 hours. That project shows why I do not treat pumping as a diagnosis. Pumping gives us access to the system. What we find next determines whether the owner needs routine service or a repair. In some cases, the drainfield or the whole system may need more work.

Read the complete Inman septic repair case.

A Landrum Home That Did Not Need a New System

On May 8, 2026, we inspected the septic system at a 1970s home in Landrum before the property went on the market. The owner had no usable system map and no idea where the tank was buried. Ford Bailey started inside the crawlspace and traced the main drain line as it left the house. That gave us a direction to follow outside and kept us from opening unnecessary holes across the yard. We located the concrete tank beneath the landscaping and recorded the operating conditions before pumping.

Once the tank was empty, we checked the accessible interior, baffles, wastewater flow, and visible conditions around the drainfield. The tank did not show damage that justified replacement, and we found no evidence that the property needed a new septic system or a sewer conversion.
We completed the locating, pumping, inspection, and sale documentation during the same visit. The total for that property was $400.

The condition of the tank and drainfield was the deciding factor. In this case, the owner needed accurate information and a service record for the sale, not an unnecessary replacement.

Read the complete Landrum septic tank locating and inspection case.

Which System Is Better for Your Property?

Septic System Pros:

No monthly municipal sewer bill
Can operate for many years with proper care
Gives the owner control over maintenance and service providers
Works well for rural properties without public sewer access

Sewer System Pros:

No private tank or drainfield to maintain
The utility manages the public treatment system
Works well on properties with limited space
Requires less routine attention from the homeowner

Septic System Cons:

The owner pays for pumping and repairs
Installation can be expensive on difficult sites
The property needs enough suitable land for a drainfield
Poor maintenance can lead to backups or complete system failure

Sewer System Cons:

Monthly service fees continue while the property remains connected
Connection charges can be expensive
The property depends on the public system and utility response times
Main line problems can affect several homes at once

Before you weigh septic against sewer, confirm a public connection actually exists for that parcel. A main two lots down means nothing for your hookup. The line has to reach your property, and the utility has to permit the tie-in at a tap fee you can afford. In many SC districts that fee runs into the low thousands before any pipe goes in. Call the municipality or the utility that owns the line before you buy the land or budget the system.

No sewer means an approved septic system, and the soil decides most of it. Upstate is the hard case. Piedmont clay drains slowly, and slow soil kills the cheap drainfield options or forces a mound or pressure-dosed design. Test early. It saves you from budgeting a $6,000 system on ground that permits only a $15,000 one.

When sewer is available, compare the full cost of connecting. Include the tap fee, the line to the sewer main, tank abandonment, and the monthly bill. Then compare that with the actual condition of the septic system. A baffle repair or overdue pumping may cost only a few hundred dollars and keep the system working for years. In that case, keep the septic system.

Not every property project requires abandoning septic. In our Moore drainfield relocation project, the existing system was working, but the drainfield occupied the planned pool area. We relocated the drainfield and pumped the tank in one day. The homeowner could keep the septic system and move forward with the pool.

Weighing Septic vs. Sewer? Talk to Rock Solid First

I’m John Rusev, co-owner of Rock Solid Septic ~ Excavation. We have grown from a small excavation operation into a multi-county septic contractor. Today, we hear from homeowners, landlords, builders, real estate professionals, property managers, restaurants, and other commercial clients who need a clear answer before they commit to a major property project.

Rock Solid serves homes and businesses across Spartanburg, Greenville, Cherokee, Pickens, and Anderson counties. Our service area includes Spartanburg, Boiling Springs, Inman, Chesnee, Clifton, Duncan, Cowpens, Pacolet, Reidville, Campobello, Lyman, Wellford, Landrum, Woodruff, Enoree, Gaffney, Greenville, Greer, Taylors, Mauldin, Simpsonville, Travelers Rest, Fountain Inn, Central, Pickens, Anderson, and Iva. You can learn more in our five-county service area guide.

If you are deciding whether to repair an existing system or connect to a public sewer, start with a septic inspection or system troubleshooting visit. We identify the problem and check what can still be used. Then we explain what each option would involve on your property.
Call (864) 431-2822 to speak with us about your property.