10 Things You Should Never Flush Down the Toilet

A well-trained cat

There are some items you should never flush or try to send down the drain.

Now, we know what you’re thinking: you outgrew the stage of flushing non-flushable items when you were still a toddler. You use common sense, so you shouldn’t have any issues. But the truth is that there are many items you might be flushing or putting down the drain today that you really shouldn’t.

These items are a little less obvious than your toy soldiers, but they can produce equally bad results. Below are 10 ordinary things you should never flush or put down the drain.

1. Bathroom Wipes

Whether they are for you or your baby, these moist towelettes are not meant to be flushed. Yes, there are versions which advertise themselves as being safe for flushing, but the truth is that most don’t degrade quickly enough to avoid problems.

Many plumbers report that these have become the number one culprit of clogged pipes, and some cities are even suing manufacturers of these wipes for the damage they are causing to city sewer systems.

2. Cotton Balls & Cotton Swabs

These are items most of us would not give much thought to flushing. First, they’re small. Second, they’re cotton, and are often made by toilet paper manufacturers, making it easy for you to feel good about flushing them. But they tend to get stuck in the bends of pipes, and since they don’t degrade like toilet paper, they simply accumulate and create clogs.

3. Medication

We hear a lot about how we should get rid of old medication, especially painkillers, which can tempt thieves. So what do many people do? They dump their medications into the toilet and flush them, causing major problems.

Medications can contaminate the groundwater, injure wildlife, and kill healthy bacteria needed to keep our ecosystem in balance. Instead, turn your medications in at a safe location. Go to to find a location near you.

4. Dental Floss

Much like cotton balls and cotton swabs, it is easy to see flushing or sending dental floss down the drain as harmless because it is so small. However, it can create clumps, just like hair, clogging drains. It can also wrap itself around other debris in the pipes, creating large blockages.

5. Cat Litter

We have all seen cat litter that claims to be flushable. But no matter what the box claims, do not flush it.

Sand and clay are the two primary materials in cat litter, and they are terrible for your pipes. And if you use clumping cat litter, it is just going to clump up in your pipes and create terrible clogs. Plus, cat fecal matter tends to have toxins and parasites that just should not be in the water system.

6. Tampons & Feminine Pads

There is no such thing as a flushable pad, and even though there are tampons that claim to be flushable, it is the same situation as with those flushable wipes we mentioned. These are products designed to absorb moisture, which means that as they come into contact with water, they expand and expand. These items should always go in the garbage bin.

7. Grease & Oil

It is important that you never pour grease or oil down the drain, this is especially true in the kitchen. In fact, any fatty products—including butter—should be disposed of only in the trash. These items stick to the insides of pipes, and they build up over time. Eventually, they can create a complete barrier in the pipe.

8. Coffee Grounds

Here is one that comes as a surprise to many. You may have seen a life hack on various sites telling you to put coffee grounds in your garbage disposal to help absorb odors. Well, while your garbage disposal might smell good for a while, these grounds become solid and eventually clog the pipes, which is decidedly less pleasant.

9. Expandable Foods

Both rice and pasta, as well as other grains, absorb water. It is how they cook. However, this absorption doesn’t stop when cooking stops. If exposed to liquids again, they will continue to absorb and expand. In addition to expanding, they tend to turn gummy and stick to the pipes, causing clogs.

10. Flour

Another sticky item? Flour. If put down the drain, it will coagulate and dry out, hardening to the pipes and building up over time. Always dispose of flour in the trash can.

If you’ve flushed or put these items down the drain in the past, have a plumber come out to assess the situation now before a serous problem arises. A thorough drain snaking or hydro jet treatment may be all you need to clear the drain of any build up.



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