How to Unblock the Bathroom Sink Drain That Drains Slowly

2025 Author: Samantha Chapman | [email protected]. Last modified: 2025-01-24 13:29

This simple method of unblocking the drain saves you time and money, and better yet, anyone with a plunger or, if necessary, a vacuum cleaner can. No special skills are required. When the bathroom sink drains the water slowly, usually the problem is not the siphon but the stop mechanism. Furthermore, discharges do not "slow down" from one day to the next but it is a process that gets worse over time. Instead of buying an industrial liquid drain cleaner, try this method.

Steps

Unclog a Slow Running Bathroom Sink Drain Step 1

Step 1. Get the tools

Unclog a Slow Running Bathroom Sink Drain Step 2

Step 2. Close the overflow hole with a wet rag

Unclog a Slow Running Bathroom Sink Drain Step 3

Step 3. Open the faucet until the drain hose is full

Unclog a Slow Running Bathroom Sink Drain Step 4

Step 4. Use the plunger carefully and check if the material blocking the drain rises enough to be grasped

If you don't like the idea of using the toilet plunger for the sink as well, or if the tool is too large, buy a new or smaller one.

Unclog a Slow Running Bathroom Sink Drain Step 5

Step 5. If it doesn't work, switch to the liquid vacuum

Unclog a Slow Running Bathroom Sink Drain Step 6

Step 6. Put a bucket under the siphon (sometimes it is "S" or "P" or duck neck)

Unclog a Slow Running Bathroom Sink Drain Step 7

Step 7. Remove the siphon and make sure that the bucket is right underneath to catch the water that will come down

Unclog a Slow Running Bathroom Sink Drain Step 8

Step 8. Look ahead of you

There are two tubes, one vertical and one horizontal. The vertical one connects directly to the drain of the sink you are working on.

Unclog a Slow Running Bathroom Sink Drain Step 9

Step 9. Put the nozzle of the vacuum cleaner right above the drain stop trying to create the maximum possible grip

Unclog a Slow Running Bathroom Sink Drain Step 10

Step 10. Turn on the tool

Unclog a Slow Running Bathroom Sink Drain Step 11

Step 11. Hold the nozzle in place while, with the palm of the other hand, close the bottom of the vertical tube

This way you create even more sucking force.

Unclog a Slow Running Bathroom Sink Drain Step 12

Step 12. Move your hand a little to let some air in

Unclog a Slow Running Bathroom Sink Drain Step 13

Step 13. Repeat this a couple of times

This creates even more force in the suction and the removal of the block will be more effective.

Unclog a Slow Running Bathroom Sink Drain Step 14

Step 14. Pull the material out of the retainer

It will take a couple of minutes and you will have to work a little to extract this unpleasant substance.

Unclog a Slow Running Bathroom Sink Drain Step 15

Step 15. Reconnect the siphon

Check the seals for any signs of wear before reassembling the siphon. This will save you future water losses.
Screw in the nuts holding the drain first by hand and then tighten them 1/4 turn with a wrench or socket.

Advice
- Remember to unplug the siphon otherwise you won't be able to apply enough suction force to get the job done.
- When using the plunger you have to hold a cloth in all other openings to create the vacuum.
Warnings
- Avoid using aggressive chemicals in drains that are dangerous for you, pipes and the environment. Try mechanical solutions first.
- Do not over tighten the nuts.

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