How To Install A Vessel Sink Drain Without Overflow? A Step-by-Step Guide

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Looking for a way to renovate your kitchen or bathroom look? Installing a vessel sink drain without an overflow will be a good idea.

This type of drain doesn’t have an extra hole to drain out of the water sink if the water level gets too high. The purpose of this structure is to prevent water from spilling over the sink.

If you like this idea, we will show you how to install a vessel sink drain without overflow. It’s time to enjoy your new sink with confidence!

How To Install A Vessel Sink Drain Without Overflow?

There are five steps to install a vessel sink drain without overflow. But before you start, gather these tools:

  • Pop-up drain
  • Waterproof putty
  • Pencil
  • Knife
  • P-trap
  • Glue
  • Leveling tool
  • Wrench
  • Hacksaw
  • Mounting ring

Step 1: Position the sink

Decide on the position of your sink first. This task is about securing the sink with putty. The drain holes can act as a guide for this placement task.

So, you need to line the sink up with the countertop or vanity underneath. Use a pencil to mark the edges of the sink.

Turn the sink over. Then, apply the waterproof putty around the bottom edge. Remember to follow the marks you have sketched before.

Attach the sink to the drain hole. Make any necessary adjustments now because it will get harder if the putty settles. You can use the leveling tool to check the sink’s position.

If you have a glass sink, you need to install a mounting ring underneath. Since glass sinks are mostly hand-made, installing them will be difficult. But things become simpler if you use the ring to help your sink rest secure and level on the countertop.

Another problem when positioning the sink is that the putty may dry too fast. In this case, use a knife to deal with it. The sooner you adjust the putty, the easier it is to release.

Use the waterproof putty to secure the sink first
Use the waterproof putty to secure the sink first

Step 2: Assemble the drain

Each sink has a particular drain assembly requirement. If your sink has no, you must buy a separate assembly.

A vessel sink without overflow only has one drain, and there should be any other exit. Luckily, this structure is easier to set up.

After getting the right drain assembly, apply waterproof sealant around the hole of your sink to attach the drain. Then, install the drain through the drain hole and into the countertop from below. It should fit into the hole snugly.

Be careful when using the sealant, too. Only apply enough sealant to keep the drain in position and establish a watertight seal.

Don’t forget to check the bottom section of the sink. The rubber gaskets and other parts should stay in place securely.

Step 3: Install the extras

The extras here refer to the faucet, handles, and spigot. You can easily install them by following the owner’s manual’s instructions.

Ensure to correctly hook up the cold and hot water lines while installing the faucet. Meanwhile, the handles and spigot must link to the sink’s drainage system.

Install the extras to complete the upper part of the system
Install the extras to complete the upper part of the system

Step 4: Install the plumbing

When the sealant has dried, and the upper section of your drain is secure, it’s time to work with the plumbing system.

Use a hacksaw to trim the drainpipe to the correct size. Then, connect the pipe that protrudes directly from the drain’s bottom to the P-trap. This task is easy because both pipes have threads that can screw together.

The main pipe extends from the wall. You need to attach it to the P-trap using the plumber’s glue. Then, tighten the connections using a wrench. But be gentle because too much force will crack the pipe.

Step 5: Check the installation

Finally, check your installation by turning on the water supply and testing its draining ability. Fill your newly-installed sink with water first, and drain it.

If the water can drain quickly, you have done an excellent job. Also, check for signs of leakage in every component, especially the connections between the pipes.

Check your installation
Check your installation

What Is The Difference Between A Sink Drain With Vs. Without Overflow?

You can choose between the vessel sink drain with or without the overflow. This video will show you how the sink drain with an overflow works:

These two types of sink drains differ in multiple factors, and you should consider all of them to come up with the best solution for your bathroom and kitchen. For example:

  • Drainage system: The main difference between these two drains is the availability of the extra drainage system. The sink drain with an overflow features a separate system to drain the water in the sink.
  • Complexity: The sink drain with an overflow is more complicated because it requires an additional hole to drain water. As a result, the one without the overflow will be easier to install.

When choosing the sink drain, consider your specific needs, too. For example, if you need a sink for a high-traffic area, the drain with an overflow can help handle the larger amount of water.

On the other hand, a simple design like a drain without an overflow can be suitable if you install a sink for a private kitchen or bathroom.

Choose the best sink drain design for your needs
Choose the best sink drain design for your needs


You can successfully install a vessel sink drain without overflow in the five steps above. It’s a great way to enhance the aesthetics and functionality of your kitchen and bathroom.

With patience, you can enjoy the new vessel sink for years. So what are you waiting for? Grab the tools and upgrade your sink! For any further information, please feel free to ask. Thank you for reading!