12 Things You Should Never Flush Down the Toilet 

It’s easy to treat the toilet like a catch-all, especially when something seems small or harmless. But toilets are designed to handle only two things: human waste and toilet paper.

Everything else, even items labeled “flushable,” can lead to clogs, costly plumbing repairs, or bigger issues in your sewer system. Some items don’t break down at all, while others expand, stick, or tangle together in ways that create serious blockages over time.

If you want to avoid backups, unpleasant surprises, and expensive plumber visits, here are the things you should always keep out of your toilet and what to do instead.

Chewing Gum

Chewing gum might seem small enough to flush, but it doesn’t dissolve in water. Instead, it sticks to pipes and can trap other debris, slowly building into a stubborn clog.

A better option is to wrap it in paper and toss it in the trash. Keeping a small bathroom trash can with a lid nearby makes it easier to avoid the temptation to flush.

Cotton Balls and Swabs

Cotton balls, pads, and swabs may look soft, but they don’t break down like toilet paper. They tend to collect inside pipes and catch other debris along the way. Over time, this buildup can lead to major blockages.

Related: 12 Little Known Uses for Cotton Swabs That Simply Make Everyday Life Easier

First Aid Bandages

Bandages combine adhesive and plastic, which makes them especially problematic for plumbing. They can stick to pipe walls, contribute to clogs, and be slow to break down. Instead of flushing, toss them in the trash.

Paper Towels

Paper towels are much stronger than toilet paper, which is exactly why they shouldn’t go down the toilet. They don’t dissolve quickly and can easily block pipes.

Even if you’re out of toilet paper, it’s better to dispose of paper towels in the trash can rather than risk a clog.

Feminine Hygiene Products

Tampons, pads, and similar products are designed to absorb liquid, and they expand as they do. That expansion can quickly lead to serious plumbing blockages. These should always be thrown away.

Diapers

Diapers are built to hold moisture and expand, which makes them completely unsuitable for flushing. Even a small diaper can cause an immediate blockage.

Always dispose of diapers in the trash. Using an odor-sealing diaper pail can help keep smells contained.

Paint

Paint is considered hazardous waste and should never be flushed. It can damage plumbing and contaminate water systems. Instead, take it to a proper disposal facility when needed.

Medication

Flushing medication can introduce chemicals into the water supply, potentially harming wildlife and affecting drinking water.

Grease and Cooking Oil

Grease might go down as a liquid, but it hardens as it cools. This can coat your pipes and create stubborn, sticky clogs.

Related: 14 Odd, But Useful Olive Oil Hacks That Actually Work

Baby Wipes and Wet Wipes

Even wipes labeled “flushable” don’t break down the way toilet paper does. They can linger in pipes and contribute to major sewer backups. Always toss wipes in the trash.

Kitty Litter

Even “flushable” cat litter can clump and harden in your pipes, leading to blockages and unpleasant odors.

Food

Toilets aren’t designed to handle food waste. Food can sit in pipes, break down slowly, and cause blockages. Instead, scrape food into the trash or compost. A kitchen compost bin can help reduce waste and odors.

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