31.08.2025 ... Is your kitchen sink leaking underneath? Don't call a plumber yet! In this video, I show you exactly how to perform a kitchen sink strainer ......
Is your kitchen sink draining slower than usual? It might be time to replace your sink strainer assembly. This simple yet crucial component plays a significant role in maintaining your sink's functionality. In this guide, we'll walk you through the process of replacing a sink strainer assembly, ensuring your sink works like new again.
Before we dive into the replacement process, let's understand what a sink strainer assembly is and its components. A sink strainer assembly, also known as a sink strainer basket, is a device that fits into the drain hole of your sink. It's designed to catch food particles and other debris, preventing them from clogging your pipes. The main components of a sink strainer assembly are:
Before you start, ensure you have the following tools on hand:

Start by turning off the water supply to your sink. The valves are usually located under the sink. Once the water is off, open the faucet to relieve any remaining pressure in the lines.
Using an adjustable wrench, loosen and remove the large nut that secures the strainer assembly to the sink. If the nut is stuck, you can use pliers to grip it better. Once the nut is off, you should be able to lift the old strainer assembly out of the sink.
Clean the drain hole and the area around it to ensure there's no debris or old plumber's putty. This will help create a better seal for the new assembly.

If your new assembly doesn't come with a rubber gasket, apply a small amount of plumber's putty around the base of the strainer basket. This will help create a watertight seal. Place the new strainer assembly into the drain hole, ensuring the lever arm is on the top side of the sink.
Place the large nut back onto the strainer assembly and use an adjustable wrench to tighten it. Be careful not to overtighten, as this can strip the threads or crack the sink. Once the nut is tight, use a screwdriver to secure the lever arm to the sink. The exact method will depend on your sink's design, so consult your sink's instructions if necessary.
Turn the water supply back on and test your sink. The water should drain quickly and smoothly. If there are any leaks, you may need to tighten the nut or adjust the lever arm.
While replacing a sink strainer assembly is a relatively simple task, there are times when it's best to call a professional plumber. If your sink has unique or complex plumbing, or if you're experiencing other plumbing issues, it's always a good idea to consult a professional.
In conclusion, replacing a sink strainer assembly is a straightforward process that can save you the time and expense of a professional plumber. With the right tools and a little patience, you can have your sink draining like new again in no time.
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