Published On: Mon, Jun 22nd, 2020

How to Install a Vessel Sink

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The vessel sink is a sink that is placed on top of a vanity counter or any other adapted cabinet. It can surely provide your bathroom with a unique polished feel. In the recent past, vessel sinks are gaining popularity as they provide the option of converting a table or any other similar of furniture into a sink vanity. Top of the vanity can be laminate, tile, granite, or any other type of surface.

Key considerations

While installing a vessel sink, there are a few things that you must be aware of before beginning the process, like the whole process would require you to drill holes into the countertop or vanity top for the sink faucet and drain.

Alternatively, you could also go to the market and purchase a vanity top that already has holes inside of it. Mostly, people prefer drilling the holes as per their own requirements.

In the case of cultured marble, top engineer stone, or natural stone, it is highly suggested to use a countertop fabricator to have the holes cut. One thing to keep in mind is that mount corset is comparatively easier to install when the sink is not in place yet.

After the process mentioned below, you have to make sure that the fitting of your drain is correct. Also, keep in mind that if you have a vessel sink made of glass then you would require a mounting ring that would sit on the counter and hold the vessel.

Things you will need

Equipment / Tools

  • Hacksaw (as needed)
  • Tongue-and-groove pliers
  • Rag


  • Drain trap assembly (1 1/4-inch or 1 1/2-inch, as needed)
  • Pipe-joint compound
  • Drain fitting and tailpiece

Instructions to install

Position the sink

The first and foremost step is to position your vessel sink on the top of the counter. In the case of Glass vessel sink, there could be a mounting ring or gasket in between the countertop and the sink. If your sink has one, then you must fix the ring on the top of the opening the drain and fix your vessel accordingly. In the case of other types of sink models, that do not have a mounting, you may need to use silicone caulk in order to fix the sink to the countertop.

Insert the tailpiece and drain flange

In order to insert that tailpiece and drain flange, you will need to use plumber’s putty. On the off chance that the drain has a rubber gasket then you just have to put it against the bottom surface off the drain flange.

After that, you have to insert the edge of the drain fitting tailpiece inside the sink drain opening. If there is lettering on the drain flange, you must position it in a way that the lettering reads uptight when you came down into the sink from the front.

Secure the tailpiece

After positioning each and everything mentioned in the above-mentioned step, it is now time to secure in a way that it doesn’t move easily, but also keep in mind that you do not over tighten it as it can damage the sink. In order to do that, you will have to use the fiction ring onto the tailpiece before using a mounting nut and fixing the nut as for as you can use your hands.

Assemble the drain

In order to do so, you will have to install a trap arm in between the branch drain pipe and the P-trap outlet in the floor or wall. In order to do that, you will have to use slip nut and after this, you must make sure that the Trap arm has a slide downwards towards the drain line. After this, it is essential to double-check all the fits in the drain and ending it by hand tightening the slip nuts but again be careful not took over tighten these nuts as it can damage the drain.

Test for leak

After the successful installation, it is now time to run a small amount of water in the sink and ensure there are no leaks if there are, certainly you can make usage of plumber’s putty to make sure the leak doesn’t last.

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