The only items that should ever be washed down the sink or flushed down the toilet are natural, organic materials that would break apart easily in one's hands. Here are some examples of things that should never be poured down the drain:
- Fats, oils, or grease (FOG)
- Wet wipes, diapers, sanitary napkins, tampons, paper towels, cardboard, or cloth. See Sewer backups and overflows.
- Medicine, paint, pesticides, and other hazardous materials