Name one material that should never be flushed down a toilet.

Feminine hygiene products should never be flushed down a toilet because they do not break down easily in the wastewater system. Unlike toilet paper, these products are designed to absorb moisture and can expand when wet, leading to blockages in pipes and the entire wastewater treatment system. This not only causes significant plumbing issues but can also lead to increased maintenance costs and backups in the municipal sewage system.

While plastic wrappers, food scraps, and paper towels also cause problems when flushed, feminine hygiene products are particularly problematic because they are specifically designed to withstand moisture, making them resistant to decomposition. Proper disposal of these items is essential for maintaining the health and efficiency of wastewater systems.