Quick answer: Pump every 2–3 years, spread out water use, keep wipes, grease and chemicals out of the drains, and keep vehicles and structures off the leach field. These habits do more than any additive.
Do
- Pump every 2–3 years and keep the receipts. They help at sale.
- Spread laundry over the week.
- Fix leaks and running toilets quickly.
- Know where your tank and field are (ask the Board of Health for the plan).
- Direct roof gutters and sump pumps away from the field.
- Add a riser at your next pumping.
Don't
- Flush wipes (even "flushable"), paper towels, feminine products or dental floss.
- Pour grease, oil or coffee grounds down the drain.
- Dump paint, solvents, pesticides or medications.
- Drive, park or build on the field.
- Plant trees or large shrubs near the field.
- Rely on additives instead of pumping.
Garbage disposals and water softeners
A garbage disposal adds solids, so pump more often if you use one heavily. Water softener backwash adds a lot of water. Ask your septic pro whether yours should discharge elsewhere.
Seasonal tips
- Winter: don't plow snow onto the field or tank area, and keep vehicles off frozen ground.
- Spring: watch for wet spots as groundwater rises. That's when weak fields show up.
- Summer: heavy guest weekends at lake and beach homes can overload a system, so spread out laundry.
Related guides
Frequently asked questions
Are septic additives necessary?
No. EPA guidance says additives aren't needed for a properly used and maintained system, and some can harm it or push solids into the field.
Is toilet paper safe for septic?
Yes. Ordinary toilet paper breaks down. Thick, quilted papers break down slower but are fine in normal use. Wipes are the problem.
Can I use bleach with a septic system?
Normal household cleaning amounts are fine. Avoid pouring large quantities of bleach or harsh chemicals down the drain at once.
Last reviewed 2026-11-09. Regulations and prices change. Confirm details with your local Board of Health and your contractor.