Do you have that drip, drip coming from your sink? It’s an annoying reminder that something is wrong with your water. It needs to be fixed because ignoring it won’t make it go away.

These leaks are fairly minor, and if you have some basic plumbing skills, you should be able to fix them. For peace of mind, you call to contact a qualified plumber to quickly make all your repairs. They have the right tools and skill set to fix up your water leak in no time. Then you will be back to let that water flow without dripping.

Alternatively, you can also perform the repairs yourself. Let’s go over the steps for how to fix a leaky sink.

1. Locate where the leak is

Hearing the drip or seeing the puddle is evidence of a leak, but now you need to find the source. Where the water is leaking from will determine how you fix it.

Areas where your sink could be leaking:

  • Drain Pipe: Leaking from the pipe when water is running.
  • Drain Gasket: Leaking from the drain while water is in the basin but plugged to stop the water going down the drain.
  • Water Line: Constant dripping or spraying.
  • Leaking P-trap: The U-shaped P-trap underneath your sink could be clogged.

Check all these areas to find where their water is coming from. First, make sure the sink is empty. Turn off the faucet and see if it is dripping from there. Put a bowl in the sink to catch any water and look for any other leaks to isolate the problem or see if there are multiple leaks.

Check under the sink for any dripping. If there is, then it will be coming from the water line. Remove the bowl and turn on the tap. Check for any other leaks.

2. Water line leak

The first thing to do is shut off the water from the main line. Check the fittings around the shut-off valve to see if they are tight. Most times, the problem is a loose connection.

Use a wrench to tighten the compression nut. Now turn the water back on and see if that solves the problem. If not, it could be a leak from around the faucet where the water line connects. Tighten this up with a pair of pliers.

If there is still a leak from the line, you will need to replace it. This may be something above your skill level, but if you can do it, you won’t have to bring in a plumber. If not, call in the pros.

3. Drain gasket leak

There is a gasket that sits underneath your drain pop-up flange, and it can get worn out. To get at this, you will need to remove the drain pipe body, so put a bowl under the pipe to catch any water as you make your disconnection.

Once removed, you can lift out the drain flange and get access to the gasket. There is also a washer that this assembly sits on, which may be cracked. If so, replace it and the gasket with one of the same size. Now put the parts back in, apply some plumbers putty under the lip of the flange, and reassemble the drain pipes.

Finally, wipe off any excess putty and turn on the water. If it leaks, tightens the pipes with quarter turns until the leak stops. If it persists, you will need a plumber to tackle it.

4. Drain pipe leak

For a leak in the drain line, it will either be:

  • A loose connection
  • A clogged drain
  • Corrosion

Start by tightening up all the connections and compression nuts. This may be all that is needed. Boil some water and slowly pour it down the drain to clear any blockages. You may have to use a plunger, commercial cleaner, DIY vinegar, and baking soda solution.

If there is still a leak, then it could be that the pipes are corroded and need to be replaced. Disconnect the piece of damaged pipe and get it replaced if you can tackle it yourself. Otherwise, you can contact a plumber to repair it for you.

5. Leaking p-trap

Under your sink is a pipe in the shape of a U. It is oriented to trap water in the drain and create a barrier to prevent sewer gases from coming back. Water may get backed up if there is a clog, causing a leak.

You can try some methods above for a clogged drain or disconnect the pipe and clear it out. Use a bucket under the P-trap before taking it apart, and once you clear any blockage, put it together again, making sure all connections are tight.

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