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How to clean a clogged washing machine drain hose?

Learn how to unclog and clean your washing machine drain hose quickly and effectively. Follow our easy, step-by-step guide for better drainage performance.

Reviewed by Content Team

Head of Content, D. Gorenko

Updated June, 5

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How to clean a clogged washing machine drain hose?

 

Identifying a Clogged Washing Machine Drain Hose

 

Before you begin cleaning, confirm the hose clog as the primary issue. Common indicators include:

  • Water backing up into the machine drum during cycles
  • Washing machine not draining fully or at all
  • Unpleasant odors emanating from the washer due to stagnant water

Ensure that the problem is not related to pump malfunction or other washing machine components. If you've ruled out these issues, it's likely a blockage in your washing machine drain hose.

 

Preparing to Clean Your Washing Machine Drain Hose

 

Proper preparation prevents messes and protects your appliance:

  • Disconnect the washer from its power source by unplugging it from the wall
  • Shut off water supply valves, ensuring no water enters the system while working
  • Move the washer slightly away from the wall for easier access to the drainage hose, being careful to avoid damaging floors and plumbing connections
  • Gather equipment you'll need: bucket or container, towels, pliers, screwdriver, drain snake or plumber's auger, gloves, and safety goggles

If you're located in areas such as St Louis or Nashville and feel unsure at any moment about this cleaning process, consider contacting a local plumbing contractor to assist you.

 

Removing and Inspecting the Hose

 

Once prepared, safely locate and disconnect the washing machine drain hose:

  • The drain hose is usually located at the back of the machine, connected either through a separate drainpipe in the wall or laundry sink
  • Use pliers or a screwdriver to release and remove any clamps securing the hose
  • Have your container or bucket ready to catch any residual water that may spill out upon removing the hose

After removing the hose, visually inspect it for obvious signs of blockage—like lint, hair, fibers, soap residue, grease build-up, or even small clothing materials stuck inside.

 

Cleaning the Hose Effectively

 

There are several methods available to clean a clogged washing machine drain hose effectively:

  • Manual removal:

    If you can visibly see the blockage, carefully use needle-nose pliers, wire coat hanger or long brush to dislodge debris. Be gentle to avoid damaging or puncturing the hose.
  • Flushing with water:

    Use a water hose or faucet pressure to flush out any obstruction. Direct water stream carefully from one end of the drain hose, letting it flow through to remove or dislodge any blockage present. Repeat from both ends for optimal results.
  • Use a plumber's auger or drain snake:

    For tougher clogs deep inside the hose, insert a plumbing drain cleaner snake and rotate it gently to break up compacted debris. After loosening the blockage, flush again with water.
  • Non-harsh cleaning solution:

    Soak the hose in hot water mixed with mild detergent or vinegar solution to dissolve soap build-up or stubborn residue. After soaking for 30 minutes, flush again to remove loosened particles and ensure cleanliness.

Note: Avoid using strong chemical drain cleaners, as these can damage the rubber or plastic components of the washing machine hose.

 

Reassembling and Testing the Hose

 

After ensuring the hose is completely free from clogs and debris, reconnect it carefully:

  • Reconnect the drain hose firmly onto the washing machine drain outlet and secure using clamps or fittings that were previously removed
  • Reconnect the drainage hose securely into the wall drain pipe or laundry basin, maintaining the appropriate hose height approximately 30 inches above the floor level to avoid siphoning or backflow
  • Plug the washing machine back into its power source and turn the water valves back on
  • Perform a short cycle on your washing machine to ensure proper flow and drainage; carefully monitor for any leaks or drainage issues during this test cycle

 

Maintaining Your Washing Machine Drain Hose

 

Preventative maintenance steps to keep your hose clean and clear in the future include:

  • Regularly cleaning your washing machine drum, filters, and hoses every three to six months
  • Avoiding excessive detergent use as residue can build up over time
  • Checking pockets of laundry items to eliminate loose coins, tissues, paper, or other items before placing them in the washer
  • Consider replacing worn-out hoses approximately once every five years for regular household usage

If at any point, you feel uncomfortable carrying out this procedure yourself or encounter unexpected challenges, professionals such as plumbing contractors located in St Louis or Nashville can provide necessary support and help ensure reliable drainage performance for years to come.

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