Plumbing Tips:
The 3 P’s of What Not to Flush
Protecting Your Plumbing and the Environment
Flushing the wrong things down the toilet is a common mistake that can cause major plumbing issues in homes, neighborhoods, and even cities. While it might seem like anything that fits down the drain should be flushable, only three things truly belong in your toilet: pee, poo, and toilet paper.
These are the “3 P’s” that your plumbing system is designed to handle. Understanding the importance of this simple rule can help prevent costly plumbing repairs and protect the environment from pollution.
In this post, we’ll explore why the 3 P’s rule matters, what happens when non-flushable items go down the drain, and how you can make a positive impact on your home and community.
The Science Behind the 3 P’s Toilets and plumbing systems are designed to move a specific type of waste: human waste and toilet paper. Both of these items break down quickly in water, allowing them to flow smoothly through pipes and into the sewer system. Toilet paper is engineered to disintegrate in water, which is why it’s safe to flush.
However, when non-flushable items like wipes, paper towels, feminine hygiene products, and even small bits of food are sent down the toilet, they don’t break down as toilet paper does. These materials can create blockages in household plumbing or contribute to larger, more serious clogs in the municipal sewer system.
The Consequences of Flushing Non-Flushables
1. Clogged Pipes and Backups
One of the most immediate consequences of flushing non-flushable items is a clogged toilet or drain. Items like wet wipes, dental floss, and paper towels don’t dissolve easily, causing them to get stuck in the pipes. Over time, these small clogs can accumulate, leading to major blockages that result in overflowing toilets or backups that affect multiple fixtures in your home.
2. Damage to Plumbing Systems
Even if a non-flushable item makes it through your home’s plumbing, it can still cause damage further along in the system. Municipal sewer systems aren’t equipped to handle solid waste like wipes or plastics, which can lead to significant blockages. In some cases, these blockages require expensive repairs or even the replacement of sewer lines. If the blockage is severe, it can lead to backups into homes or businesses, resulting in flooding and extensive water damage.
3. Environmental Impact
Flushing non-flushable items doesn’t just affect your plumbing—it can have serious environmental consequences. When waste materials that don’t break down in water make it to wastewater treatment plants, they can create problems for the filtration systems. In some cases, these items bypass the treatment process and end up in rivers, lakes, and oceans, contributing to water pollution and harming wildlife. For example, wet wipes and other plastic-based materials can break down into microplastics, which pose a threat to aquatic ecosystems.
4. The Fatberg Problem
Perhaps one of the most notorious results of flushing the wrong things down the toilet is the formation of fatbergs. A fatberg is a massive accumulation of non-flushable materials, like wipes and grease, that congeal in the sewer system. Fatbergs can grow to enormous sizes, sometimes blocking entire sewer pipes and causing major infrastructure damage. Removing fatbergs is a costly and labor-intensive process for municipalities, and their formation can lead to sewer backups and overflows.
Common Non-Flushable Items to Avoid
To protect your plumbing and the environment, it’s important to know what items should never be flushed down the toilet.
Here’s a list of common offenders:
• Wet Wipes (even those labeled “flushable”)
• Paper Towels and Napkins
• Feminine Hygiene Products
• Cotton Swabs and Cotton Balls
• Dental Floss
• Grease and Oils
• Medication (should be disposed of properly through take-back programs)
• Tissues
• Diapers
• Cigarette Butts
Many of these items are marketed as flushable or disposable, but just because something can fit down the toilet doesn’t mean it’s safe for your pipes.
Why “Flushable” Wipes Aren’t Really Flushable
One of the most misleading products on the market is the so-called “flushable” wipe.
Despite the name, most wipes, even those labeled as flushable, don’t break down like toilet paper does. In fact, consumer watchdog groups and environmental organizations have consistently reported that flushable wipes remain intact long after being flushed, contributing to clogs in both home plumbing and sewer systems.
Toilet paper is specifically designed to disintegrate in water within minutes, making it safe for plumbing. Wipes, on the other hand, are made from stronger, non-biodegradable fibers that can take much longer to break down—if they break down at all.
For this reason, it’s always better to dispose of wipes in the trash rather than flushing them down the toilet.
How You Can Help
Preventing plumbing issues and protecting the environment starts with small actions at home.
Here are some ways you can make a difference:
1. Stick to the 3 P’s:
Always remember that the only things that should go down your toilet are pee, poo, and toilet paper. For everything else, use the trash can.
2. Dispose of Grease Properly:
Instead of pouring grease or cooking oil down the drain, let it cool and dispose of it in a sealed container in the trash.
3. Educate Your Household:
Make sure everyone in your home understands what can and cannot be flushed. This is especially important in households with children, who might be tempted to flush small toys or other items down the toilet.
4. Use Trash Cans in Bathrooms:
Place a small trash can near the toilet for easy disposal of non-flushable items like wipes, tissues, and feminine hygiene products.
5. Support Local Sewer Campaigns:
Many municipalities run public education campaigns about the dangers of flushing non-flushable items. Get involved by spreading the word and supporting these efforts to keep our plumbing systems running smoothly.
Here are links to a series of our own municipalities contributions!
https://www.hamilton.ca/home-neighbourhood/house-home/water-pollution-prevention/flushables
Small Actions, Big Impact
Following the 3 P’s rule—pee, poo, and toilet paper—can help protect your home’s plumbing system, save you from costly repairs, and reduce your environmental impact.
The next time you’re tempted to flush something that doesn’t belong in the toilet, remember that even small items can lead to big problems.
By taking responsibility for what goes down your drains, you’re contributing to a healthier, more sustainable plumbing system for both your home and your community.