The short answer: the only things that should go into a septic system are human waste, toilet paper, and normal water from sinks, showers and appliances. Everything else, from “flushable” wipes and paper towels to cooking grease, medications and harsh chemicals, can clog pipes, kill the bacteria that break down waste, or end up in the drain field. In Savannah-area homes, where sandy soil and high water tables leave little room for error, these habits are the cheapest way to avoid repairs.
Never flush these items
- Wipes of any kind, including those labeled “flushable.” They do not break down like toilet paper and tangle in pipes, pumps and the tank.
- Feminine hygiene products and condoms. They float, collect in the scum layer and can block the outlet.
- Paper towels, tissues and cotton balls. They are made to hold together when wet.
- Dental floss and hair. Both wrap around parts and catch other waste.
- Diapers and cat litter. Even “flushable” litter adds solids the tank cannot digest.
- Medications. They can harm the tank’s bacteria and should go to a drug take-back program instead.
- Cigarette butts. The filters do not break down.
Homes with a grinder pump or lift station should be especially careful. Wipes and floss are the most common cause of jammed pumps. See our page on grinder and lift stations for more.
Keep these out of sinks and drains
Cooking grease, oils and fats
Grease cools and hardens in pipes and the tank, then builds up in the scum layer. If it passes through, it can coat the drain field soil so it stops absorbing water. Pour grease into a can and throw it away.
Food scraps and coffee grounds
Food solids add to the sludge layer and mean more frequent pumping. Scrape plates into the trash or compost. If you have a garbage disposal, use it sparingly.
Harsh chemicals
Paint, thinners, pesticides and large amounts of bleach or drain cleaner can kill the bacteria your tank depends on. Use them sparingly or take them to a household hazardous waste drop-off.
Additives sold as quick fixes
Many products claim to “clean” your tank. Most are not needed and some cause harm. Our post septic tank additives and treatments: do they actually work? explains why.
Septic-safe habits for Savannah homes
- Choose toilet paper that breaks down easily. Septic-safe toilet paper is designed to come apart quickly in water. A simple test: put a few squares in a jar of water, shake, and see how fast it falls apart.
- Put a small trash can in every bathroom, including guest bathrooms and rentals.
- Spread out water use. Running several loads of laundry in one day floods the tank. Space them through the week.
- Fix leaks. A running toilet can send many gallons a day into the tank.
- Use mild, everyday cleaners in normal amounts.
- Keep up with pumping. Even with perfect habits, solids build up. Read how often to pump in coastal Georgia.
A quick room-by-room guide
Bathroom
Only toilet paper and human waste in the toilet. Keep a lidded trash can for wipes, hygiene products, floss and cotton swabs.
Kitchen
Scrape plates into the trash, pour grease into a can, and use a sink strainer. Run the dishwasher only when it is full.
Laundry room
Spread loads through the week, use normal amounts of detergent, and consider a lint filter on the washer discharge to catch fibers before they reach the tank.
Garage and outdoors
Never pour paint, oil, solvents or pool chemicals down any drain. Point downspouts away from the drain field.
Why habits matter more in the Lowcountry
Coastal Georgia’s sandy soils and high water tables mean many systems use pump tanks or elevated drain fields, which have less tolerance for clogs. When heavy rain saturates the ground, a drain field already coated with grease or overloaded with solids is much more likely to back up. Vacation rentals on Tybee Island and busy family homes in Savannah see the most trouble, since guests may not know the rules.
Tips for rentals and homes with guests
Guests rarely know a home is on septic. If you own a rental or host family often, a few simple steps prevent most problems:
- Post a short, friendly note in each bathroom asking guests to flush only toilet paper.
- Keep lidded trash cans and spare liners in every bathroom.
- Stock septic-safe toilet paper so guests are not tempted to bring their own.
- Ask cleaners to check for wipes or products in toilets between stays.
Signs something went down that should not have
- Slow drains or gurgling in several fixtures
- Toilets that back up after flushing
- A pump alarm sounding
- Sewage odors inside or near the tank
If you notice these, stop using water and call. Our post on top reasons for septic backups covers what to do next, and our septic tank repair team can clear the problem.
Frequently asked questions
Are flushable wipes safe for septic systems?
No. Despite the label, they do not break down like toilet paper and are a leading cause of clogs and pump failures.
Can I use bleach if I have a septic system?
Small, normal household amounts are fine. Large amounts, or bleach used every day in big quantities, can harm the bacteria in the tank.
Is a garbage disposal bad for a septic tank?
It adds solids, which means more frequent pumping. Use it sparingly and put most food scraps in the trash.
What toilet paper is best for septic systems?
Any toilet paper that breaks apart quickly in water. Products labeled septic safe are a good start, and the jar test confirms it.
Dealing with clogged drains in Savannah? Call Gray Septic Solutions at 912-661-4089.