Your drains handle a lot—but they aren't trash cans.

Some everyday items that seem harmless going down the kitchen sink, bathroom sink, or garbage disposal can contribute to buildup, clogs, and drainage problems over time.

Knowing what not to put down your drains is one of the easiest ways to take better care of your home's plumbing.

Here are 10 things your drains would rather you throw in the trash.

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1. Grease, Fats & Cooking Oils

This is one of the big ones.

It may be liquid when you pour it down the sink, but grease and fat can cool and stick to the inside of your drain piping.

Over time, that buildup can collect other debris and contribute to a stubborn clog.

What should you do instead?

Allow grease to cool, place it in a disposable container, and throw it away according to local disposal guidance.

And no—running hot water behind the grease doesn't make it safe for your drains.

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2. Coffee Grounds

Coffee grounds are tiny, so they should wash right through the drain... right?

Not necessarily.

Grounds can collect inside drain piping and combine with grease and other debris, contributing to buildup.

Instead of rinsing them into the sink, put used coffee grounds in the trash or compost them when appropriate.

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3. “Flushable” Wipes

The package may say flushable, but that doesn't mean they behave like toilet paper once they're inside your plumbing.

Toilet paper is specifically designed to break apart in water.

Many wipes remain much more intact and can contribute to blockages in plumbing and sewer systems.

When in doubt, throw it out.

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4. Paper Towels & Tissues

Your toilet isn't a second trash can.

Paper towels, facial tissues, napkins, and similar products aren't designed to break down the same way toilet paper does.

The safest rule is simple:

Only flush toilet paper and human waste.

Everything else belongs in the trash.

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5. Feminine Hygiene Products

Tampons, pads, applicators, and other hygiene products should never be flushed.

These products can absorb water and expand rather than quickly breaking apart.

Wrap them and place them in the trash instead.

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6. Food Scraps

Having a garbage disposal doesn't mean every leftover on your plate should go down the sink.

A disposal helps handle small amounts of appropriate food waste—it doesn't make your drain immune to clogs.

Scrape larger amounts of leftover food into the trash before rinsing your dishes.

Your disposal and your drains will thank you.

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7. Fibrous & Stringy Foods

Some foods can be particularly troublesome for garbage disposals.

Fibrous or stringy food waste can wrap around disposal components or contribute to drainage problems.

Examples can include:

• Celery

• Corn husks

• Onion skins

• Artichokes

• Other tough, stringy food waste

When possible, put these items in the trash or compost instead.

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8. Eggshells, Bones & Fruit Pits

Hard food waste doesn't belong in your garbage disposal.

Bones and fruit pits can be difficult for a disposal to handle and may damage or jam the unit.

Eggshells can also contribute additional debris to your drain system.

The trash is the better destination.

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9. Hair

We know—you aren't intentionally putting hair down your shower drain.

But hair is one of the most common contributors to bathroom drain clogs.

It can combine with soap residue and other buildup inside the drain.

Easy Homeowner Tip:

Use a drain screen or hair catcher in your shower or bathtub.

Cleaning a little hair from a screen is much easier than dealing with a clogged drain later.

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10. Paint, Chemicals & Other Non-Food Products

Your home's plumbing isn't designed to be a disposal system for leftover household chemicals.

Paint, solvents, automotive fluids, harsh chemicals, and similar products shouldn't simply be poured down a household drain.

Follow the product label and your local waste-disposal guidelines for proper disposal.

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But I Have a Garbage Disposal!

We hear you.

A garbage disposal is helpful—but it isn't a blender attached to your sink that makes everything disappear.

Whatever goes through your disposal still has to travel through your home's drain piping.

The best habit is to scrape larger food scraps into the trash and use your disposal for small amounts of appropriate food waste.

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What About Hot Water and Grease?

This plumbing myth refuses to disappear.

Hot water doesn't make pouring grease down your drain a good idea.

Hot water may temporarily keep grease in liquid form, but the grease can cool farther down the plumbing system and begin sticking to the inside of the piping.

Throw the grease away instead.

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What Should You Actually Flush Down a Toilet?

Keep this one simple:

Toilet paper + human waste.

That's it.

Wipes, paper towels, feminine hygiene products, cotton products, dental floss, and other household items belong in the trash.

Your toilet will be much happier.

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A Few Easy Ways to Help Protect Your Drains

You don't need to become a plumbing expert to develop better drain habits.

• Scrape food into the trash before washing dishes.

• Never pour cooking grease down the sink.

• Use hair catchers in showers and bathtubs.

• Be careful about what goes into the garbage disposal.

• Keep a trash can near the toilet.

• Don't use your drains to dispose of household chemicals.

• Pay attention when a drain starts getting noticeably slower.

That last one is important.

A slow drain can sometimes be an early warning that buildup or a blockage is developing.

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Already Have a Slow or Clogged Drain?

Sometimes even good drain habits can't prevent every plumbing problem.

If a drain is moving slowly, repeatedly clogging, gurgling, backing up, or giving you trouble, there may be more happening inside the plumbing system.

Justin the Plumber provides professional plumbing services throughout Jacksonville and surrounding Northeast Florida communities.

We'll help determine what's causing the problem and what needs to be done to get things flowing properly again.

Have a stubborn drain? Give Justin the Plumber a call.

Call the best, flush the rest.