
A washer drain pan is a useful addition to your home, as it helps to protect against water damage caused by a leaky washer. Drain pans are typically made from plastic or metal and are placed under the washer to catch any leaks and redirect water to an exterior drain. Over time, the drain pans can become worn, cracked, or clogged, and will need to be replaced. This process involves lifting the washer, unscrewing the drain fitting, and removing the old pan before installing a new one in the same location. The process requires a few tools and materials, such as a pipe wrench, hose clamp, and PVC pipe, and it is important to take safety precautions and turn off the water supply before beginning.
How to Replace a Washer Drain Pan
| Characteristics | Values |
|---|---|
| When to replace | When the drain pan is worn, cracked, rusted, or water is not draining properly |
| Preparation | Turn off the water supply and disconnect the washing machine. Have a bucket and towel ready to collect residual water. |
| Removal | Lift the washer, disconnect the drain line, and move it away from the drain pan. Unscrew the drain fitting, lift the drain pan out, and measure the hole size. |
| Installation | Drill a hole in the new pan to match the old pan's location. Place the new pan, ensuring the fitting penetrates the hole. Secure washers, rubber grommet, and nut with a wrench. |
| Final steps | Lift the washer into the new pan. Reconnect water lines and the drain line. Plug in the washer and turn the power on. Check for leaks after the first few washes. |
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What You'll Learn

Prepare the washer and the area
Before you begin, ensure you have the necessary 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.
Now, prepare the washer and the area. Start by turning off the water supply and disconnecting the washer. Turn off the water hose, unplug the washer from the wall, and disconnect the water supply and drain hoses. Place a bucket underneath to collect any residual water left in the hoses. You may also want to have a towel ready to wipe up any spills or residual water.
Next, use a dolly or hand truck to lift and move the washer away from the area where the pan will be installed. Washing machines are heavy, so it is recommended to have assistance from another person for this step. If your washer is currently hooked up, move it away from the wall until you uncover the floor drain.
Once the washer is moved, you can begin preparing the area for the new drain pan. If you are installing a new drain pan, you may need to install a drain pan pipe using a hacksaw. If you are replacing an existing pan, you can use the existing drain pipe. Measure the size of the hole in the drain pan and use a cordless drill and a drill bit or hole saw of the same size to drill a hole in the new drain pan.
Now that the washer and area are prepared, you can proceed to install the new drain pan.
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Remove the washer and old drain pan
Before removing the washer and old drain pan, you must first turn off the water supply. Turn off the water hose, unplug the machine from the wall, and disconnect the water supply and drain hoses. It is important to place a bucket underneath the washer and have a towel ready to collect any residual water left in the hoses.
Now, you can begin to remove the washer. Using an assistant, lift the washer straight up and move it away from the drain pan. Set it down carefully. Next, you will need to remove the old drain pan. Unscrew the drain fitting from the inside of the drain pan using an adjustable pipe wrench to loosen the nut, washers, and rubber grommet. Once these are removed, you can lift the drain pan out.
It is important to note that you should measure the size of the hole in the drain pan before purchasing a new one to ensure a proper fit. Also, if you are installing a new drain pan, you may need to install a drain pan pipe to the correct size using a hacksaw. However, if you are replacing a pan, you can use the existing drain pipe.
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Measure and cut a hole in the new pan
When replacing a washer drain pan, it is important to measure and cut a hole in the new pan accurately to ensure a proper fit and function. Here is a step-by-step guide on how to do this:
First, measure the size of the hole in the old drain pan. You can do this by simply taking measurements of the diameter or width of the existing hole. It is important to be as precise as possible in your measurements to ensure a proper fit.
Next, transfer these measurements to the new pan. Mark the location of the hole on the new pan, ensuring it aligns with the drain pipe. You can use a drill and a drill bit or a hole saw to cut the hole. If you are using a drill, choose a bit that matches the size of the hole you measured. If you are using a hole saw, select one that is the same size or slightly larger than the hole diameter.
Now, carefully drill or cut the hole in the new pan. Take your time and work steadily to ensure a clean cut and a smooth edge. It is recommended to use a power drill for this task, but you can also use a cordless drill if needed. A Dremel cut-off wheel can also be used to cut the hole from the inside, providing a precise fit.
Finally, test the fit of the new pan. Place the new pan in the location where the old one was removed, ensuring that the fitting penetrates through the hole you cut. Make any necessary adjustments to ensure a snug fit and secure the pan in place.
By following these steps and taking accurate measurements, you can effectively measure and cut a hole in your new washer drain pan, ensuring a proper installation and preventing any leakage issues.
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Place the new pan and secure the drain fitting
When placing the new pan, ensure that the washer drain pan can slide with the washer and dryer stack. The pan lip should be higher than the ending (with fittings) top of the drain pipe so that it can drain. PVC fumes are toxic, so it is important to ensure the water can drain.
Next, place the new pan in the same location as the old one. If your washer is the same size as the previous one, this will ensure the new pan fits. However, if the hoses are in a different location, you may need to get a new pan and place it a couple of inches away from the wall to give room for the hoses.
Now, secure the drain fitting. Place the washers, rubber grommet, and nut back on the drain fitting. Tighten them using an adjustable wrench. You can also use plumber's putty to secure the pan so it doesn't move around when installing the washer. Movement will likely weaken the seal. You can also use silicone to secure the pan to the floor or construction adhesive if you don't think the pan will be replaced any time soon.
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Reconnect the washer and test for leaks
Once you have replaced the drain pan, reconnect the washer by first hooking the hot and cold water lines back up and turning the faucets on. Place the drain line back into the receptacle. Plug in the washer and turn the power back on.
After the first few washes, check for any signs of leaking to ensure everything is connected properly. If you still have leaks after you've tightened everything, dry off the fittings and place silicone around them. Wait 24 hours for the silicone to dry before using the washer.
A combination of regular cleaning and routine inspection can help your drain pan last longer. 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.
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.
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Frequently asked questions
First, turn off the water supply and disconnect the washing machine. Avoid lifting and moving your washing machine by yourself. Lift the washer drain line from the fixture on the wall and move it away from the drain pan. Unscrew the drain fitting from the inside of the drain pan. Measure the size of the hole in the drain pan and drill a hole in the new pan in the same location. Place the new pan in the same place as the old one. Reconnect the washing machine hoses and turn the water valves back on.
You will 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.
A washer drain pan helps protect your home against damage from a leaky washer. It is a container that fits under your washing machine to catch water leaks and prevent water damage to your floors. Over time, the drain pan may become worn, cracked, or degraded, and will need to be replaced.











































