How to Plumb a Single bowl Kitchen Sink with Disposal?

Are you also tired of scraping the food waste daily from your sink drainer and thinking of installing a single-bowl kitchen sink with disposal?

If yes, then you’re at the right place!

Because this guide consists of a step-by-step technique of “how to plumb a single bowl kitchen sink with disposal.” A disposal system is very beneficial in keeping your kitchen sink clean and free from the foul odor. Thus, if you’re also planning to install a disposal system in your kitchen, it will be the best decision of your life to date. 

Let me tell you the best way to install this garbage disposal drain kit in your kitchen!!

Benefits of Installing a Disposal System

Disposal sinks are commonly found in today’s modern kitchen, which help in many ways to keep your kitchen clean and fragrant. We have mentioned some of the best possible benefits of installing a disposal system in the kitchen, which will encourage you to have one in your kitchen too. 

  • Disposal helps break down the food scrap and prevents your sewage line from blocking or clogging. Instead, it increases the speed of doing the dishes. 
  • Disposal throws more food waste into the drain, leaving a very minimal amount of trash for the landfill. Thus, it is environmentally friendly. 
  • Since the disposal helps you gather lesser food waste, it also decreases the chances of rodent food. Rodent food spreads bad odor in the kitchen. Thus disposal keeps the kitchen safe from bad smells and fragrant. 
  • The disposal system mainly produces Ground-up food waste, which does less damage to the drain plumbing. Thus, it saves you from incidents like emergency plumbing. 
  • When a disposal system is attached to your sink, you do the dishes quickly and collect less waste. 

How to plumb a single bowl kitchen sink with disposal?

One single bowl sink is simple enough to be plumbed. You have to keep it away from the children and pets. And start plumbing this one single bowl sink in 8 simple steps as mentioned below: 

Step – 1: Turn Off Your Electricity and Water Supplies

Primarily, you need to remove your wash basin from the wall. For this, you should switch off the power and water supply. 

Step – 2: Remove Your Old Sink 

Now, you can remove the old sink with a hammer and screwdriver. Start by unscrewing your sink and then remove the wash basin. Then, you should remove all the pipes and the plumber’s snake attached to them via a wrench. 

Step – 3: Install the New Sink 

Now, you need to connect your sink to the drain pipe, and your drain pipe needs to be linked with the drain. Because this tool connects the wash basin to the drain, you should tighten the bolts of your wash basin and drain. 

Step – 4: Insert A New Disposal Unit 

Next, insert your trash disposal flange into the bottom of the wash basin. The mount will require the ¼” and ⅜” size boreholes to be attached. Now, recheck all the instructions from your manufacturer to verify if your model needs recalibration.

Step – 5: On the Power for Disposal Device 

It would help if you started the electricity flow in your disposal system while ensuring that your nut bolts are tight enough. Once the electricity is flowing, your disposal will be activated. 

Step – 6: See If There Are Any Leaks

In this pressure test, you can also detect the leakage with the help of a pressure gauge. Here, the wash basin works as a reservoir, and you must fill it with water. Then, you can start your process by beginning the sewage disposal system. If there are leaks, the wash basin will start draining the water. 

Step – 7: Install A New Drain Assembly

Next, you must install a drain component by tightening the drain pipe via a wrench. 

Step – 8: Attach Your Faucet 

In the end, you have to connect the faucet to the wash basin. Once you successfully attach it, you have to test the tap too. Here, it might be helpful to get the water supply first. 

NOTE: Always remember that every system is unique and requires a different fitting technique or method. Therefore, before directly jumping into plumbing, read the manuals properly. 

Final Words 

The single bowl kitchen sink is one of the best modern add-ons in a kitchen. It makes the kitchen sink produce less landfill waste. Thus, if you’re converting double sink to single with garbage disposal system, then confidently go ahead. You’re doing justice with your kitchen. We hope you like this guide on “how to plumb a single bowl kitchen with disposal?” and the best possible ways to install it in your kitchen, along with all the safety points. 

Frequently Asked Questions (FAQs) 

  • Can you hook a garbage disposal up to a single bowl sink?

You can easily install a garbage disposal in a single kitchen sink or one-half of a double sink. However, installing a garbage disposal in a single kitchen sink is effortless. 

  • What if my sink doesn’t line up with existing pipes?

If your system’s tailpiece doesn’t line up with the trap, you have to keep your trap in its original position and keep the collar tightened. It will leave a flexible tailpiece extension for your drain. Its size would generally have a 1 ¼-inch diameter of the plastic pipe. 

  • Do you need a bowl sink for a garbage disposal?

A garbage disposal can be used on one side if your other bowl is full of water or dirty dishes. 

  • Does it matter which side of the sink to install garbage disposal?

Once you have set up the garbage disposal, you can keep its position the same. It starts its lifetime value from its position. Therefore, choose its position wisely in the beginning. 

  • Does every drain line need a vent?

Whether you’re talking about a tub, toilet, sink, or floor drain, they all need a plumbing vent to work properly. If you need to remember to have a vent in your drain, it can create various problems, including making the drain system slow and gurgle noisy. 

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Priya Singh

Hey readers! I'm Priya Singh Founder of (, I am full-time Digital Marketer, Organic Affiliate Marketer & a Blogger.

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