Washing machine drain pans are containers that fit under your washing machine to catch water leaks and prevent water damage to your floors. They’re typically made of plastic or metal and have a drain outlet that allows any collected water to be discharged safely away from your home’s flooring. These pans are especially helpful in homes with upper-floor laundry rooms, where a leak could result in significant damage.
Our guide covers a washing machine drain pan’s benefits, types, installation, maintenance, common issues, and alternatives so you can decide if you need one for your home.
Why Are Washing Machine Drain Pans Important?
Simply put, drain pans safeguard your home against unexpected leaks and washing machine overflows, preventing water damage that would otherwise lead to mold or damaged floors and ceilings.
Preventing Water Damage
The biggest benefit of using a drain pan is preventing water damage. According to the Environmental Protection Agency (EPA), the average home leaks around 10,000 gallons of water yearly. A drain pan provides a first line of defense by catching leaks and preventing water from seeping into the floor.
Without a drain pan, even a small leak can lead to significant damage over time. This includes warped or rotten floorboards, damaged subfloors, and even compromised structural integrity. By effectively containing and directing water away from vulnerable areas, a drain pan can save homeowners from the headaches and financial strain of extensive water damage repairs.
Protecting Against Mold and Mildew
Mold and mildew often go unnoticed until they become a significant problem. According to the Federal Emergency Management Agency (FEMA), mold can begin growing on a damp surface within 24–48 hours. The spores can spread to other areas of your home, degrading indoor air quality and leading to potential health issues. A drain pan helps mitigate these risks by maintaining a dry environment and minimizing the moisture that mold and mildew require to thrive.
How Does a Washing Machine Drain Pan Work?
Here’s a closer look at how these pans function.
Water Collection
A washing machine drain pan fits snuggly under the washing machine and has raised edges to contain any water that escapes. The raised edges ensure the water is contained within the pan and doesn’t spill onto the surrounding floor.
The design often includes a slightly sloped bottom that channels water toward the drain outlet. This feature ensures that water does not remain stagnant in the pan, reducing the risk of mold and mildew. The drain pan is a proactive measure against water damage by effectively capturing and containing leaks.
Drainage System
Most washing machine drain pans come equipped with a drainage system to channel the collected water away from your floor. This system typically includes a drain hole connected to a pipe that directs the water into your home’s plumbing or a nearby floor drain, ensuring water doesn’t accumulate in the pan.
This direct connection to the plumbing system allows for continuous and efficient water removal. Should a leak occur, the pan immediately directs the water through the drainage system, preventing accumulation and potential overflow.
Types of Washing Machine Drain Pans
Next, we’ll look at the most common drain pain types: plastic and metal. While plastic is more affordable, it’s not as durable as metal. Learn more about both below.
Plastic Drain Pans
Plastic drain pans are popular among homeowners because they’re affordable and easy to install. They’re available in various sizes and styles, allowing for a flexible fit with different washing machine models. Being lightweight, plastic pans are easy to maneuver and position, even in tight spaces. Their affordability also makes them a good option for budget-conscious homeowners. However, plastic pans are less durable and may crack or degrade over time, especially under heavy washing machines.
Metal Drain Pans
Metal drain pans, typically made from stainless steel or aluminum, offer greater durability and longevity than plastic options. They’re stronger and can support heavier machines without the risk of cracking. On the downside, metal drain pans are more expensive and may require more effort during installation due to their weight.
Metal pans are ideal for larger, industrial-grade washing machines or laundry setups that are frequently used. Their corrosion resistance also means they can withstand prolonged exposure to water without deteriorating. While the upfront cost is higher, the extended lifespan and increased reliability often justify the investment.
How Do You Install a Washing Machine Drain Pan?
Here’s how you can quickly install a washing machine drain pan.
Tools and Materials Needed To Install a Washing Machine Drain Pan
You’ll need a few tools and materials, including a measuring tape, pipe wrench, hose clamp, PVC pipe, and possibly some plumber’s putty. You may also need a flashlight for visibility in tight spaces and a level to ensure proper placement.
Take safety precautions, including turning off the water supply and disconnecting the washing machine before beginning the installation. Avoid lifting and moving your washing machine by yourself to avoid pulling a muscle or dropping a heavy appliance on your feet.
Step-by-Step Washing Machine Drain Pan Installation Guide
- Turn off the washing machine by turning off the water hose, unplugging it from the wall, and disconnecting the water hoses. Have a bucket and towel ready for any excess water in the hoses.
- Lift the front end of the washer and insert a hand truck. Move it away from the wall until you uncover the floor drain.
- If you’re replacing an existing drain pan, use the existing washing machine pipe. If you’re installing a new pan, use a hacksaw to cut a pipe to the correct size.
- If the drain pan has a preexisting hole, install the drain onto the new pipe. If there’s no hole, cut one to correspond to the drain fitting on the floor.
- Using the dolly, lower the washing machine onto the pan so it sits flush and is level.
- Reconnect the washing machine hoses using a wrench to ensure they’re secure. Plug your washer back into the outlet and turn the water valves back on. After the first few washes, check for any signs of leaking to ensure everything is connected properly.
How To Maintain Your Washing Machine Drain Pan
A combination of regular cleaning and routine inspection can help your drain pan last longer.
Regular Cleaning Procedures
Clean your drain pan regularly to keep it in good condition. You can do this by lifting the washing machine slightly and wiping down the pan with a mild detergent and water. Avoid using harsh chemicals or abrasive scrubbing tools that could damage the pan.
Regular cleaning—such as quarterly maintenance checks—helps prevent the buildup of dirt, detergent residue, and other debris that can cause clogs and odors.
Inspection and Replacement Tips
Signs of wear may include visible cracks, rust on metal pans, or water not draining properly. Replace the drain pan if you spot these issues. Pay close attention to the drainage system during inspections. Any signs of slow drainage or blockage should be addressed immediately to prevent overflow. You should also keep your washing machine maintained.
What Are Some Common Issues With Washing Machine Drain Pans?
Two of the most common drain pan problems are clogs and leaks.
Clogging Issues
Clogging can occur if debris or sediment accumulates in the drainage pipe, preventing water from flowing out of the pan. Regular cleaning and inspections help prevent clogs, and a simple snake tool can clear minor blockages. Persistent clogging may require a more thorough cleaning or professional intervention.
Leaks and Cracks
Leaks and cracks in the drain pan itself are another common issue. These can develop over time due to the washing machine’s wear and tear or heavy loads. Temporary fixes such as waterproof tape can address minor cracks, but significant damage typically requires replacing the drain pan. If recurring leaks are an issue, it may indicate an underlying problem with the setup, such as poor installation or an unsuitable material choice for the pan.
Alternatives to Traditional Drain Pans
In addition to traditional drain pans, other methods can help protect against water damage from washing machine leaks. These include automatic shutoff valves, which detect leaks and turn off the water supply, and alarms alerting you to water on the floor. These methods are often used in conjunction with drain pans for maximum protection.
Another alternative is installing a secondary containment tray, specifically designed for large laundry areas or commercial use. These trays can hold more water and often come with integrated water detection systems.
Drain Pan Regulations and Building Codes
Building codes and regulations regarding washing machine drain pans vary by location. Check with local authorities to ensure compliance. Compliance helps protect your home and may also be required for insurance purposes.
Adherence to regulations helps protect your property value and can prevent complications with insurance claims or legal standards. Builders and contractors can provide guidance on local codes and their requirements.
Cost Considerations for Washing Machine Drain Pans
The cost of washing machine drain pans varies based on material and size. Plastic drain pans typically range from $20–$60, while metal drain pans can cost between $70 and $160, according to prices we averaged from The Home Depot and Amazon.
Our Conclusion
A washing machine drain pan is a small investment that can save you from significant water damage and costly repairs. Regular maintenance and adherence to local building codes help these pans protect your flooring more effectively. Don’t attempt to lift and move appliances if you could injure yourself. In this case, call a trusted handyman.