Your kitchen sink pipe is leaking!
Oops! It is disappointing if you have to face this kind of issue in your kitchen area but what can you do? It is a very common problem.
Do not worry!
You can easily get rid of this problem because you are in the right place where you will get the solution of how to cap off a sink drain pipe. The best way to seal a sink plumbing pipe is by capping it. Now the question is how you will do that.
By following some simple steps, you can fix it by yourself and can make yourself proud of doing the task.
How To Cap Off A Sink Drain Pipe – 2 Easy Methods

Two distinct ways to cap off a sink drain. You can either fix the sink drain temporarily or permanently.
Method 1: Temporary Capping off a Sink Drain Pipe
If you want to cap off a sink drain pipe temporarily in that case you need to follow these steps. By following these steps, you can temporarily fix this problem.
Thing You Need
Before you start the job, you need to gather some important materials. After collecting the following components, you can start your job.
- Measuring tape
- Rag
- Emery cloth
- Hacksaw
- Marker
- Pip cap
Step 1: Switch off the water supply line
When you will do the job, you need to cut some pipes, for that reason you need to turn off the water supply line so that water does not come out during the operation. You can easily do that by switching off your water control switch. If you want to avoid cutting the pipes and want to unscrew the pipe then it will be wise for you to turn off the waterline.
Step 2: Measure and cut the pipe
After turning off the water supply line, you need to measure and cut the pipe. Take a measuring tape to measure the area and then use a hacksaw to cut the pipe. There will be some debris in the area of the pipe so you need to take a rag to clean the debris.
If you see the edges are not smooth enough, then you need to use an emery cloth to carefully sand it down and smooth the edges of the pipe.
Step 3: Installing the cap
Now it is high time to install the cap. It is not that difficult. All you need to do is put the cap on top of the open drain pipe and press it down. You need to measure the cap before installing it otherwise, it will sit in place perfectly. If you can pull the cap off, then you will be sure the cap is installed properly.
Let’s check a short video about How To Cap Off A Sink Drain Pipe
Method 2: Permanent capping off a Sink Drain Pipe
If your drainpipe is overflowing or leaking, then you need to cap off the sink drain pipe. Following these steps, you can permanently cap off your sink drain. One thing you need to know is that this method can take a little more time than the temporary one.
Things you need
Before starting the job, make sure you have all the necessary components and the equipment are:
- PVC cement
- Wrench
- PVC primer
Step 1: Using the primer
At the very first, you need a cloth to wipe the end of the pipe. After that, you need to use a PVC primer to coat the outer and inner surface of the exterior cap and the drainpipe you want to seal off. You have to do the job carefully. It will help to reduce friction and make both parts stick together.
Step 2: Putting the PVC cement on the cap and the pipe
Now you need to keep the PVC comet on the cap and the pipe. After that, horizontally position the cap and place the cap on the top of it. Press the cap down for a few minutes and then tighten it using a wrench.
Step 3: Final check-up
To make sure that you have done the job perfectly, you need to inspect the fixture turning on the water supply line and see if there is any leakage. If you see any leakage that means you could not fix the cap properly in that situation, you will need to hire an expert.
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Final Verdict
How to Cap off a Sink Drain Pipe is not that much tricky that people think about it. all you need to do is find out the right solution to what this article has given to you. Now you only need to follow the instructions and complete your task.