How to Fix Leaking Bathroom Sink Pipe


One of the most important appliances in working condition is a sink. From washing foods to washing your hands to washing laundry, a sink is crucial to have. However, like all other appliances, it is bound to experience some issues over time. While some common problems are minor, others can be pretty serious.

No one wants to experience a leaking pipe under the bathroom sink. If the leakage cannot be repaired by using a wrench, there may be other adjacent issues to determine. Even though you don’t have to resort to extraordinary measures yet, it helps to have a backup.

Follow these steps on how to fix leaking a bathroom sink pipe:

Determine the bathroom sink leak

To begin with, you will have to figure out why exactly the pipe is leaking in the first place. A leaky pipe can result from many factors that can easily be detected. For instance, some pipes may just be old and will crack over an extended amount of time and use. The more common scenario has to do with the fixture itself.

As mentioned previously, there may be some parts in and around the pipe that are loose. This repair job will require tightening up to bring it back to normal. The more serious problems surrounding your leaky pipes will have to be inspected professionally by a plumber. You do not want to leave the problem to exacerbate after all!

Water supply

No matter where a leaking pipe may be in your home, it will always be connected to one key location. The water supply in your home is one of the most important areas in a household for more than the obvious reasons. If you find a leaky pipe under your sink, the first step is to shut the supply off.

Suppose you live in a home, head on down to the basement. Your water valve will usually be located here; there should be a lever. Make sure the supply is fully off by turning it off completely. The last thing anyone wants is to have the valve on quickly without realizing it.

Bathroom drain assembly

One of the most important parts of the sink is the drain assembly. This component must be disconnected as soon as possible to effectively repair the pipes. First, grab some pliers and target the slip nut. This part connects the sink trap to the wall’s drainpipe.

You should now be able to fully remove the drainpipe from the sink drain easily. Next, turn your attention to the sink cabinet. You will have to remove the drain assembly now, which must be kept in a safe location. The next few steps include figuring out what drain assembly you require now.

Replace the assembly

Grab the old drain assembly, and head to your nearest department or hardware store. At this point, you will have to find a new assembly that is similar in size to the current one. Usually, the customer service representatives here will be able to point you in the correct direction.

To streamline this process, keep in mind the various dimensions of the component. You do not want to purchase one too small or large for your bathroom. In addition, do not forget to buy some extra slip nuts, as they will be necessary for reassembly.

Tighten bathroom sink connections

Once everything has been acquired, you will have to begin the repair process. Check the pipe threads and place some plumber’s tape around them. Secure the sink trap by connecting it to the main drain line from the wall by using your slip nut. Next, use a wrench to tighten the sink’s drain flange.

Turn your attention to all other pipe connections, and use your wrench to tighten them up. Check the pipes under your sink, and ensure those are tightened up by using your pliers. Be sure to also replace any old plumber’s tape with new strips if necessary. If all goes well, the leaky issue should be taken care of.

Inspect the bathroom sink

Most leaky pipes about a bathroom sink can be fixed in a do-it-yourself manner. However, that may not always take care of the issue itself. If the pipes still leak, you will have to call a plumber for some added due diligence, even minorly. Once they have been able to diagnose the problem, your leaky pipes will be a thing of the past!