Jason Schwartzman • September 30, 2025

Wipes: What not to flush

🚽 Wipes: What Not to Flush — and Why It Matters for Your Plumbing


In recent years, “flushable wipes” have become a popular household item. Marketed as convenient, clean, and safe to flush, these products often give homeowners a false sense of security.

Here’s the truth:


🚨 Flushable wipes are one of the leading causes of main drain blockages in residential plumbing systems — costing homeowners thousands of dollars in damage, emergency repairs, and even major flooding.

As plumbers, we see wipes in drains every single week. Whether the packaging says “flushable,” “septic-safe,” or “biodegradable,” wipes should never be flushed down the toilet.


💧 Why “Flushable” Wipes Aren’t Flushable

Unlike toilet paper, which is designed to disintegrate rapidly in water, wipes are made from tough synthetic fibers (like polyester and polypropylene) that do not break down in the plumbing system.

This causes several problems:

  • Wipes accumulate inside pipes, snagging on joints and rough surfaces.
  • They tangle together and combine with grease, hair, and other debris to form massive blockages.
  • Once they reach the main building drain, they can create stubborn obstructions that require excavation, hydro-jetting, or even full re-piping to fix.
🧻 Toilet paper breaks down within minutes. Wipes can stay intact for months — and they catch everything behind them.

🏠 Common Consequences of Flushing Wipes

Flushing wipes may seem harmless at first, but the problems build up over time. Here’s what can happen:

1. Main Drain Blockages

Wipes often get stuck in bends, tees, or transition points in the main drain line, creating a solid obstruction. This can stop your entire home’s drainage system.

2. Sewer Backup and Flooding

When a main blockage occurs, wastewater has nowhere to go — backing up into floor drains, tubs, and showers. Basement flooding from sewage is extremely costly to clean and repair, often leading to drywall removal, flooring replacement, and disinfection.

3. Pipe Damage and Re-Piping

Over time, wipes can put pressure on weakened or older pipes, causing cracks or collapses. In some cases, entire sections of pipe must be replaced or excavated to remove the clog and restore flow.

4. Expensive Emergency Calls

Unlike a simple sink clog, main drain blockages caused by wipes usually require professional plumbing intervention — often after-hours, which means premium rates and disruption to the entire household.


🚫 Other Items You Should Never Flush

Wipes aren’t the only offenders. To keep your plumbing system healthy, never flush:

  • Paper towels or napkins
  • Feminine hygiene products
  • Cotton swabs or pads
  • Dental floss
  • Hair
  • Cat litter or pet waste bags
  • “Flushable” cleaning cloths or disinfectant wipes
If it’s not toilet paper or human waste, it doesn’t belong in the drain.

🧺 The Simple Solution: Use a Trash Can

The best way to prevent wipe-related blockages is simple:

  • Keep a small trash can next to the toilet.
  • Dispose of wipes and other items in the trash, not the drain.
  • Educate everyone in the home, including kids and guests, about what can and cannot be flushed.

This one small habit can save thousands of dollars in plumbing emergencies and prevent major disruptions to your home.


🧰 What We See as Plumbers

As professional plumbers, we clear wipe blockages constantly. In many homes, it starts with slow drains and occasional gurgling, then progresses to full backups.

We’ve excavated pipes packed solid with wipes that have been building up for months — sometimes requiring full re-piping of main drains or sewer excavation to restore flow.

The packaging may say “flushable,” but from what we see in the field every day, wipes do not break down, and they cause real, expensive damage.



📝 Final Thoughts

Despite their marketing claims, flushable wipes are not safe for your plumbing system. They’re one of the top causes of blockages, sewer backups, and major repairs in homes today.

The rule is simple:


🚽 Toilet paper only. Everything else goes in the trash.

Taking this small precaution can prevent flooding, costly plumbing repairs, and major disruptions to your home.

By Jason Schwartzman September 30, 2025
🚰 Understanding Backwater Valves: Protecting Your Home from Sewer Backups When a major rainstorm hits, the city’s sewer and drain infrastructure can quickly become overloaded. Once the system reaches capacity, water has nowhere else to go — and can flow back into residential properties through below-grade drains . This is where backwater valves play a critical role. These specialized plumbing devices automatically prevent sewer backups , protecting your basement from flooding, property damage, and expensive insurance claims. In many parts of Montreal and surrounding municipalities, both insurance companies and local bylaws require backwater valve installations for certain properties. Homeowners should verify both local regulations and insurance requirements to avoid coverage issues during a claim. 💧 How Backwater Valves Work A backwater valve is installed on the main building drain of a single family home or branch lines serving fixtures below grade (like basement floor drains, showers, or laundry sinks). Under normal conditions, wastewater flows freely out of the home. But during a heavy rainfall or sewer surcharge , the valve automatically closes , stopping sewage and stormwater from entering your plumbing system and flooding your basement. 📝 These devices are only necessary to protect drains located below grade . Fixtures and drains above street level are not at risk from sewer backup. 🧰 Types of Backwater Valves There are two main types of backwater valves used in residential plumbing: 1. Normally Open Backwater Valve (Mainline Type) Position: The valve stays open under normal conditions, allowing unrestricted flow. Action: During a backflow event, a flapper floats up and seals the pipe, preventing backflow. Use: Common in retrofit situations on the main building drain . Pros: Minimal flow restriction in normal use Familiar and widely available Simple to inspect and maintain Meets the intent of the National Plumbing Code of Canada for effective backflow prevention. Cons: The valve pit is not always perfectly sealed, which can allow groundwater or moisture to infiltrate. In high water table areas , this can lead to dampness or water entry through the pit. Often requires installing a sump pump pit nearby to manage groundwater infiltration. Provides less of a physical barrier when the system is not in use. 💡 Normally open valves can be an effective option, but their pit design can make them less ideal in areas with elevated groundwater or moisture concerns.  2. Normally Closed Backwater Valve Position: The valve remains closed under normal conditions, opening only when water flows out from the house. Action: Each time plumbing is used, outgoing water pressure opens the flap ; between uses, the valve seals shut. Use: Favoured in new builds and areas with high groundwater , or where maximum protection is needed. Pros: Provides a tighter, continuous seal — offering excellent protection against both sewer backup and groundwater infiltration . Ideal for high water table regions where open valves may let in moisture. Reduces the risk of infiltration through the valve pit. Meets the intent of the National Plumbing Code of Canada for effective backflow prevention. Cons: Slightly more flow restriction during discharge. Requires proper installation and occasional maintenance to ensure smooth operation. 🏆 Normally closed valves are often the preferred choice in modern installations, especially in Montreal’s variable water table conditions. They offer superior sealing and more robust protection for below-grade fixtures.  🏠 Why Backwater Valves Matter for Montreal Homeowners In many parts of Montreal and surrounding areas , municipal bylaws and insurance companies increasingly require backwater valve installations for homes with below-grade plumbing fixtures . Some cities offer rebate or subsidy programs to encourage installation. Insurance providers may deny sewer backup claims if a required valve is not present. Homeowners should check municipal bylaws and speak with their insurance provider to understand their specific obligations. 📌 Consult both your municipality and your insurance company to confirm requirements before installing.  🌊 Addressing Groundwater Infiltration For normally open valves , a common issue is that the access pit can act as a weak point for groundwater infiltration . In areas with high water tables , adding a sump pump pit nearby is strongly recommended to manage moisture that can collect around the valve. Normally closed valves , by contrast, provide a tighter seal , significantly reducing this risk. 📝 Final Thoughts Backwater valves are a critical line of defense against sewer backups caused by overloaded municipal systems during heavy rains. While both normally open and normally closed valves have their place, normally closed valves typically offer the best protection — especially for below-grade drains in high water table regions like parts of Montreal. Work with a licensed plumber to determine the best type for your property. Installation must follow the National Plumbing Code of Canada , local bylaws , and insurance requirements to ensure coverage and safety.
excavator, excavation of main drain by licensed plumbers solve your blockage repair of pipes.
By Jason Schwartzman September 29, 2025
Professional Drain and Sewer Excavation by licensed Plumbers. Expert Plumbing services for water cut situations, repairs, and full code-compliant replacements