4 Things Plumbers Urge You to Stop Flushing

Toilets are designed to handle only specific waste materials, yet many people flush items that don’t belong, often leading to clogs, plumbing repairs, and even environmental harm. According to plumbers, some of the most common culprits are everyday items we mistakenly think are flushable. In this article, we’ll discuss four things plumbers strongly advise against flushing and why keeping these items out of your toilet can save you money and hassle.

1. Wet Wipes

Wet wipes, including those labeled “flushable,” are one of the most common causes of clogged toilets and sewer systems. Despite their marketing claims, most wet wipes don’t break down as easily as toilet paper. They tend to accumulate in pipes and form blockages, which can lead to expensive repairs and even damage municipal wastewater systems.

Plumbers recommend disposing of wet wipes in the trash instead. If you regularly use wipes, consider switching to biodegradable alternatives specifically designed for septic safety. Keeping wipes out of your toilet not only protects your plumbing but also prevents the creation of massive sewer clogs, often called “fatbergs,” in urban drainage systems.

Flushable wipes being put in the toilet
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2. Grease and Cooking Oils

While it may seem harmless to flush liquid grease or cooking oils, these substances solidify as they cool, causing significant problems in your plumbing. Grease clings to the walls of pipes and combines with other debris, eventually creating stubborn clogs that restrict water flow. Over time, these blockages can require costly professional removal.

Instead of flushing grease, let it cool and dispose of it in a sealed container in the trash. Alternatively, some communities offer recycling programs for used cooking oil. By keeping grease out of your toilet, you can avoid major pipe issues and contribute to a healthier sewer system.

Cooking oil in a pan
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3. Dental Floss

Dental floss may seem insignificant, but it poses a surprisingly big problem for plumbing systems. Unlike toilet paper, floss is not biodegradable and can wrap around other debris in pipes, creating tangled clogs. Over time, this can lead to slow drains or complete blockages that require professional intervention.

To prevent issues, always dispose of dental floss in the trash. It’s a small change that can make a big difference for your plumbing and help reduce strain on wastewater treatment facilities. Many plumbers emphasize that even seemingly small items like floss can add up to serious problems over time.

A container of floss string
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4. Feminine Hygiene Products

Tampons, sanitary pads, and other feminine hygiene products are not designed to break down in water. These items can expand and absorb water, causing immediate blockages in your toilet or deeper within the plumbing system. Even products labeled as “flushable” can create significant problems, as they don’t degrade quickly enough to avoid clogging pipes.

Plumbers recommend using a dedicated trash bin for all feminine hygiene products. Some households keep a discreet wastebasket in the bathroom to make disposal easier. By keeping these products out of the toilet, you’ll help prevent plumbing emergencies and reduce strain on sewage systems.

Female hygiene products
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Protecting your plumbing starts with knowing what not to flush. Wet wipes, grease, dental floss, and feminine hygiene products are among the most common culprits of clogged toilets and damaged sewer systems. By disposing of these items properly, you can avoid costly repairs, maintain the efficiency of your pipes, and help protect the environment. When in doubt, remember the golden rule of plumbing: only flush toilet paper and human waste—nothing else!