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How to Install a Kitchen Sink Drain Pipe Easy and Right Way?

how to install a kitchen sink drain pipe


Your kitchen sink drain pipe plays a crucial role in channeling dirty water down to The main sewer line. However, just like any other drain pipes in your home, the sink drain pipe usually gets corroded and starts leaking, especially when it gets old thus needs to replace with time. You may also need to install a new sink drain pipe when renovating your Best Kitchen Sink. Proper functioning of your kitchen drain is vital. That is why you need to fix or replace leaking or old sink drain pipe. Installing a sink drain may look complicated, but that is not the case. It is a simple procedure that you can do on your own without the help of a plumber. In this post, we are going to give you tips on how to install a kitchen sink drain pipe.

Step by step tips on how to install a kitchen sink drain pipe

Step 1: Shut off the water supply

The first thing that you need to do before you start the installation process is locating the main kitchen water supply tap and shut it off place a bucket under the sink to trap water.

Step 2: Disassemble the existing drain pipe

Gently disassemble the existing sink drain pipe. Start by removing the screws and nuts that hold the drain pipe in place. Turn the connectors in a clockwise direction to loosen and detach the drain pipe from the kitchen sink.

Step 3: install the garbage disposal

Install the garbage disposal on the desired side of the sink. The garbage disposal usually consumes a lot of space. So ensure that you have adequate space to accommodate it. Once it is in place, install The basket strainer to the sink basin. this is also the time to install any other under sink accessories such as a hot water dispenser or a water filter.

Step 4: install the continuous drain pipe and tailpiece

The continuous waste pipe is the pipe that connects the garbage disposal drain to the tee fitting. On the other hand, the drain tailpiece is The straight pipe that runs from the sink strainer to the small tee fitting. Please cut both the waste pipe and tailpiece to length before installation.

Use a slip nut and a washer to connect the small tailpiece to the sink strainer temporarily. Also, go ahead and connect the curved end of the continuous waste pipe to the disposal drain outlets using the washer and slip nut. Allows the straight end of the pipe to extend below the small tailpiece.

Gently hold the tee f up to the continuous waste pipe and tailpiece. Cut the continuous waste pipe and t waste pipe to the required length using a backsaw or a tubing cutter. Gently reinstall both the waste pipe, tailpiece, and the tee and ensure that the connectors are tightly connected. Make necessary adjustments if needed to ensure that the continuous waste pipe as a slight downward slope. Tighten the slip nut using a channel type plier. Don’t overtighten to avoid damaging the plastic threads.

Step 5: Fix the drain trap

The drain trap includes a J shaped trap arm, and the U shapes trap bend. The U shaped trap bend is connected on the bottom side of drain while the J shaped trap is fixed on the wall tee. Gently put together both drain traps then tighten them loosely with a washer and slip nut. If the arm of the trap is too long to fit in the provided space, then cut them accordingly until they fit perfectly. Use a plier to tighten all slip nuts and again, ensure that you don’t use a lot of force to tighten the nuts. Check all the drains connections to make sure that they are all tight.

Step 6: Check for leaks

Once you are done, run water on The sink basin to see if there are any leaks at pipe joints. If you notice any leaks, tighten up The connection until The leak disappears. It that does not work remove The nut and reposition The washer before retightening The nut. Conduct a final test by filling up The skin with water and let it drain while you keenly check for any leaks below.


Installing a kitchen sink drain pipe is not complicated as it may look. It is a simple process that will only take a few minutes to complete if you have all The necessary accessories needed for installation. When installing The sink drain pipe, be gentle, especially when tightening The nuts and washers to avoid damaging them. Undermount Kitchen Sinks can only function well if sink drains are running smoothly. So, always ensure that your sink drain is in greatshape.

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