"Do Not Flush" List

Flushing these items down your toilet or other drain can be harmful to your property's plumbing system, the City's sanitary sewers and the wastewater treatment plant!

  1. Cooking oil, fats, oil, grease, food scraps, ground food
  2. Coffee grounds
  3. Kitty/cat litter, pet wastes
  4. Baby wipes, disposable wipes, flush-able wipes, biodegradable wipes
  5. Diapers
  6. Latex gloves
  7. Paper towels, shop rags
  8. Cotton swabs
  9. Syringes
  10. Cigarettes, cigarette butts, cigarette filters
  11. Hair
  12. Q-tips, cotton swabs
  13. Feminine sanitary products
  14. Dental floss
  15. Dryer sheets
  16. Motor oil
  17. Trash, scraps, plastic bags
  18. Sand, grit, dirt
  19. Drugs, antibiotics, prescriptions (Take these items to the Police Department drop box.)
  20. Excessive household chemicals such as bleach, detergent, drain cleaners, ammonia
  21. Pesticides, lawn/garden fertilizers
  22. Swimming pool chemicals

If you have any questions, please contact the Knox Wastewater Department at (574) 772-2961 and remember, "It's a toilet, not a trashcan!". If it is not bodily waste or toilet paper, then it does not belong in the sewers.