How to Install Sink Strainer

The sink strainer can be installed on two occasions. They are:

  • When new
  • When replacing the old worn out strainer.
The sink strainer can easily get worn out. It may experience several blockages that necessitate it to be replaced. Some of the things that can cause it to be worn out include the environment and dirt. When worn out, it needs to be replaced as soon as possible. For the steps on how to install when new and to replace when worn out, then go through this article and find out more.

Steps to follow when installing the strainer

Disconnect the pipe under the sink

Using a screwdriver, unscrew the bolt that joins the T-junction to the pipe. Disconnect the two and leave them separated. Do not remove the U-bend in place as the sewer may flow back to your floor.

Remove the nut below the basket strainer

From the bottom, remove the lowest nut. When the nut is out, it will make free the tailpiece and the top gasket. Put them apart as well.

Remove the large nut from the strainer top

Once you are done with removing this nut, you will have done the first part of the job. You will then be able to have access to the basket strainer.

Take off the basket strainer

Several loose smaller units tend to fall off at this point from the strainer. These parts come with the new strainer. So as you are purchasing your strainer, ensure that all the small parts are there. This means that you can discards these parts with the old strainer without any problem. Discard the old basket itself too. This basket is to be lifted off from the sink top.

Thoroughly, clean the sinkhole

Before fixing the strainer, thoroughly lean the sinkholes from all the sides. Use a brush to scrub both the top and the bottom of the sink. Do not leave any dirt around the area where you will fix the strainer. Use a sponge to dry it off before commencing the installation. Any dirt and moisture around this place will hinder the putty from forming a good bond. In turn, the strainer won’t hold well.

If the installation is a replacement, you will need to thoroughly scrub off the old putty. Use a putty knife for this purpose. A thinner can cause it to come out too. Read the safety instructions before using any chemicals.

Fix any holes in the sink id they happen to be there

Before installing the strainer to the sink, you must repair any holes in the sink. Neglecting these holes will cause your sink to leak all the time. Run a series of tests after doing the repairs to establish whether the holes have been fully repaired or not. If however the holes a bigger or many in the sink, you will need to do the sink replacement. At this point, the sink is irreparable.

Dismantle the new strainer fully

The new strainer comes fixed with all its parts and components. It is not possible to install it while fully assembled.

Apply the putty and press the strainer against it

This is meant to hold the strainer into its place. Apply little pressure so as not to distort the still wet putty. This will help to hold the strainer in its place before tightening to the sink with the screw.

Remove the excess putty

After screwing back, there is always that excess putty that comes out from the edges. You should scrap it off before it dries up. Use a putty knife for this purpose. Be careful not to leave visible scratches in your sink. Clean the basin properly to remove any remaining material.

Reattach with the bottom pipe and complete the rest of the plumbing

Once done screwing back, then it is time to reattach with the sewer pipe to make the work complete. Close the connections tightly to avoid dropping water when using it. Complete all the remaining plumbing works.


Fixing and or installing the strainer can be a complicated process. In some instances, you may need the services of a professional for a perfect job. Follow all the steps for the best results. Handle everything with care.

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