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How to Unblock a Bathroom Sink: A Quick and Easy 6-Step Guide

by E Cavendish 06 Mar 2024 0 Comments
How to Unblock a Bathroom Sink: A Quick and Easy 6-Step Guide

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Dealing with a blocked bathroom sink can be a real hassle. The good news is that you don't always need to call a plumber to resolve this common issue. In this comprehensive guide, we will walk you through the steps on how to unblock a bathroom sink using simple household items. Say goodbye to that pesky blocked sink and hello to clear drains!

How to Unblock a Bathroom Sink

Gather Your Tools

Before you begin, make sure you have the following tools and supplies ready:

  • Rubber Gloves
  • Adjustable Spanner
  • Screwdriver
  • Old Towel
  • Bucket
  • Clean Plughole
  • Drain Unblocker
  • Prepare the Area

    Clear the area around your bathroom sink and remove any items that may hinder your work. Lay down the old towel to prevent water from escaping and to seal off the overflow.

    Step 1: Remove the U-Bend

    • Put on your rubber gloves for protection.
    • Using an adjustable spanner, carefully loosen and remove the U-bend or waste trap located under the sink basin.
    • Have a bucket ready to catch any water or debris that may come out.

    Step 2: Clean the Plughole

    • Inspect the U-bend for clogs and clean it thoroughly.
    • Use a clean plughole brush to remove any visible gunk or debris.
    • Rinse the U-bend with hot water.

    Step 3: Inspect the U-Bend

    Examine the U-bend for any obstructions or build-up that may be causing the blockage. A clear U-bend will help water flow freely.

    If you encounter problems while inspecting the U-Bend:

    • Check for Visible Obstructions: Look for any debris or blockage you can easily see and remove by hand.
    • Use a Plughole Brush: If you see debris but can't reach it, use a plughole brush to dislodge and remove it.
    • Consider a Drain Unblocker: If the blockage persists, try a commercial drain unblocker following the instructions on the product.
    • Contact a Plumber: If the problem remains unresolved or seems complex, it's best to call a plumber for professional assistance.

    Step 4: Unblock the Sink

    • Mix a solution of baking soda and vinegar.
    • Pour it down the sink and let it sit for about 15 minutes.
    • Follow with hot water to flush away the loosened debris.

    Step 5: Reassemble the U-Bend

    • Ensure the U-bend is clean and free from clogs.
    • Carefully reattach the U-bend, tightening it with an adjustable spanner.
    • Double-check that all connections are secure.

    Step 6: Test the Sink

    unblocking kitchen sink

    Turn on the faucet to check if the water flows smoothly. If the blockage is gone, congratulations! You've successfully unblocked your bathroom sink.

    Preventing Future Blockages

    Regular Maintenance

    To prevent future blockages, consider the following tips:

    • Use kitchen and bathroom drain gel regularly to keep drains clear.
    • Avoid pouring grease, food scraps, and large debris down the sink.
    • Run hot water down the drain regularly to help dissolve soap scum.

    When to Call a Plumber

    If your sink remains blocked despite your efforts or if you're uncomfortable performing these tasks, it's time to call a local plumber. They have the expertise and tools to resolve more complex issues efficiently.


    Unblocking a bathroom sink doesn't always require calling a plumber. With the right tools and a little patience, you can tackle this common household problem on your own. Remember to perform regular maintenance to prevent future blockages and keep your sink running smoothly. Say goodbye to blocked sinks and hello to clear, flowing water, knowing how to unblock a bathroom sink when needed.

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