6 Steps to plumb a double sink

6 Steps to plumb a double sink

Plumbing a double sink should not be rocket science because you can do it yourself. Yes, you don’t necessarily call a plumber and spend your hard-earned cash. Instead of doing so, you can do the entire plumbing if you have time. Also, you have to put some effort into the task if you want to install a double kitchen sink.

There are many reasons behind plumbing a double sink. Maybe, you are going to renovate your kitchen, your sink has been damaged and requires changing it. Before, you start working on it; you also need to consider a few things so that you don’t have to stop anywhere. First of all, you should consider the height of the new sink you want to install.

However, in this article, you are going to learn everything you need to know for plumbing a double sink at home. Different people may adopt different steps for the purpose. But I am going to share the same processes and steps I followed to do it myself. And, I hope the guide will help you accomplish your project effortlessly but take time though.

What you need for the plumbing work

It is a good idea to arrange all the necessary things at hand before you start. It will help you work flawlessly and you don’t have to worry about anything. Otherwise, you might be stuck at a point if you don’t find anything needed for the project.

  • Marker
  • Tape measure
  • Channel-type pliers
  • PVC tubing cutter or hacksaw

Not only that, but you also require to have other necessary materials in hand. This might include a kitchen drain trap kit. Maybe, you are thinking that the work needs so many tools to accomplish. If you think that you are not fit for the work, you just simply hire an expert plumber who can do it quickly for you. In this case, you must have to consider spending money depending on your plumbing task.

Step one: Height of the drain outlet

This is the first and important step to measure the drain outlet height before you start the project. In this case, you might find a different height from the one you had. Therefore, you must adjust the height so that you can attach it to the drainpipe appropriately.

Now you have to use the measuring tape to measure the height from the ground. You might use a U-shaped trap bend and branch drain pipe. Otherwise, you might not attach these joints properly. For proper drainage, you have to connect the branch drain pipe to a sanitary tee fitting so that it slopes down toward the tee pipe.

Step two: Lowering the drain as per your needs

Sometimes, you might need to open the wall to lower the position of the sanitary tee. Do you know why you need to do it? Maybe, the opening of the existing drain pipe is not low enough. That’s why your new sink’s depth is not getting accommodate with the height of the drain pipe.

Also, it should not be difficult work. All you need to do is open the wall and connect the PVC pipe so that the endpoint of the existing pipe comes closer to the new sink. If you need to bring down the sterile tee in the branch channel, it is a smart thought to stand by until different pieces of the channel are test-fitted prior to sticking and getting the fittings forever. Leaving the fittings free will permit you some space for change.

Step three: Connecting the strainer and garbage disposal

In this step, you should install your garbage disposal to the sink. But you have to do it first as it needs more space than other connections. When you are done with installing the garbage disposal, it is time for you to install the strainer to the sink basin. If you have other components to connect, you should complete these connections in this step. You can install a hot water dispenser or water filter under the sink.

Step four: Waste pipe and tailpiece

When the time comes to connect your tailpiece to the sink strainer, you can do it easily because the tailpiece is a straight pipe. In the other tee fitting, you have to connect the disposal drainpipe so that the disposal drain trap can work perfectly. In this case, you also have to consider that the length should be perfect.

To do these connections accurately, all you require is to connect them temporarily and measure wisely. You can use slip nut and washer for the purpose to understand the accurate height and then you can finally connect them.

Hold the tee fitting up to the rear end and waste line, and imprint the two lines where they ought to be sliced to find a way into the tee fitting. Cut the rear end and nonstop waste line to length with PVC tubing shaper or a hacksaw.

Step five: Connecting the drain trap

For this step, you will be required a J-shaped trap arm and a U-shaped trap bend that you already purchased, right? Now you have to fit the trap bend onto the bottom of the tailpiece fitting. Also, you need to use the trap arm for the extension into the sanitary tee fitting directing into the wall.

Find your trap bend and the arm at the same time to assemble them. But you have to be aware of the loose-fitting of them with slip nut and washer. When you finish connecting them up, you can tighten them with your hands by pushing the trap to bend up.

Step six: Finding leaks

If you can connect all the joints with slip nuts and washers tightly, there should be no leakage. Yet, you have to check all the connections running water in them so that you can find the leaks easily if there are any. It is common if you find any leaks in the joints. By tightening the slip-nut joints, you can fix them quickly. And, now it is complete for you to work.

During your kitchen renovating, or replacing, you can plumb a double sink as per your needs. If you want to invest money and save your time and effort, hiring an expert plumber should be your best way to move on. But you can plumb a double sink yourself if you have time and can put effort. However, the guide will help you do it easily and quickly if you have read the entire article with attention.

Leave a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Scroll to Top