Septic tank pumping
Most households should pump every 3 to 5 years. Bigger households and smaller tanks, more often. Pumping is a few hundred dollars and it is the cheapest insurance a septic system has: neglected tanks send solids into the drain field, and drain fields are where the real money is.
How often should you pump a septic tank?
South Carolina's environmental agency publishes this schedule. Find your tank size (it is on your permit, or the pumper can tell you) and the number of people in the house.
| Tank size | People in the house | ||||
|---|---|---|---|---|---|
| 1 | 2 | 4 | 6 | 8 | |
| 1,000 gal | 12 | 6 | 3 | 2 | 1 |
| 1,250 gal | 16 | 8 | 3 | 2 | 1 |
| 1,500 gal | 19 | 9 | 4 | 3 | 2 |
Source: SCDES septic tank maintenance guidance. SCDES also recommends an inspection by a licensed contractor every 1 to 2 years, and every year for systems with a pump or other mechanical parts.
Signs you may need repair, not just pumping
- Drains slowing down across the whole house at once.
- Gurgling plumbing or sewer smells near the tank or drain field.
- Wet, spongy, or unusually green grass over the drain field.
- Sewage backing up into the lowest fixtures in the house.
- Your septic alarm going off. That one means stop using water heavily and call now.
Septic repair costs
Small fixes (filters, baffles, floats, pumps) run from a few hundred into the low thousands. Drain field repair or replacement is a major job that can reach five figures depending on the system the soil now requires. Any honest operator will diagnose before quoting a field replacement. If it comes to a new field, the installation guide explains how the soil evaluation works.
Hire a licensed pumper or repair company
South Carolina licenses septic pumpers and haulers, and separately licenses the companies that install, clean, and repair systems. A licensed company is the one you want digging in your yard. Ask to see the license.
Backup or alarm going off?
For backups and alarms, mark it urgent in the request form. Requests are received and dispatched to the appropriate local company. If sewage is coming into the house, start with our septic emergency guide.
Questions people ask
How often should I pump my septic tank?
Most households pump every 3 to 5 years. The state publishes a schedule by tank size and household size: a 1,000-gallon tank with 4 people needs pumping about every 3 years, and with 2 people about every 6.
How much does septic pumping cost in Greenville SC?
Pumping is a few hundred dollars for a typical home. Bigger tanks, hard-to-reach lids, and lids that have to be dug up cost more.
Does a septic pumper need a license in South Carolina?
Yes. SCDES licenses anyone who pumps and hauls septage, and anyone who installs, cleans, or repairs systems. Ask for the license before work starts.
Can a drain field be repaired, or does it have to be replaced?
Sometimes it can be repaired, sometimes not. Any honest operator will diagnose before quoting a field replacement, because replacement can reach five figures depending on the system the soil now requires.
What should I do if my septic alarm goes off?
Cut back on water right away (laundry, showers, dishwasher) and call. The alarm usually means water is running high in the tank, and using water heavily can push sewage back into the house or the yard.
Something wrong or pump due? Request service and tell us what you are seeing.
Request serviceSources
We check state and county rules against the source. Rules change, so confirm with the office that issues the permit before you act.