How-to Unblock a Basin

How-to Unblock a Basin

Is your bathroom basin blocked, or draining slowly. This How-To Guide will hopefully help sort it.

Equipment Needed:

  • Protective Gloves
  • Old dishcloth
  • Washing up bowl or bucket
  • Plunger
  • Baking Soda
  • White Vinegar
  • Soda Crystals


Step 1: Take the plug out of the hole and check for grime that may be blocking the drain.


Step 2: Fill the basin with water. This makes sure that there is an airtight seal for the plunger.

Fill The Basin With Water


Step 3: Using an old dishcloth, block the overflow making sure there is also an airtight seal there as well.


Step 4: Using the plunger and place it over the plughole. Push the plunger up and down gently, while still holding the dishcloth against the overflow. This creates a good seal.



Step 5: If your drain is still blocked, try using a mixture of baking soda and vinegar. All you need to do is pour of small amount of baking soda down the drain, then pour a cup of white vinegar in after.


Step 6: Leave the mixture to work for a few minutes and then use hot water to wash the mixture down the drain.


Step 7: If your basin is still blocked you may need to remove the u-bend and clean it.

Remove U-Bend


Step 8: Look under the basin and find the first bend in the pipe. Position a bucket or washing-up bowl under the u-bend. This will make sure to catch any water.


Step 9: Unscrew the u-bend where it joins to the bottom of the sink. Stop unscrewing when the water begins to drip out. Let all the water drip out into the bucket/washing-up bowl. Once all the water has drained, completely remove the u-bend and look inside. If you see any grime, clean it out and then re-connect the u-bend. Hopefully, you will no longer have a blocked basin. If it is still blocked we suggest you call a qualified plumber.


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