How To Change A Pipe Under The Bathroom Sink

How to Change a Pipe Under the Bathroom Sink

A leaky pipe under the bathroom sink can be a frustrating problem, but it's one that you can easily fix yourself with a few simple tools and materials. Here's a step-by-step guide on how to change a pipe under the bathroom sink:

Step 1: Gather Your Tools and Materials

Before you start, you'll need to gather the following tools and materials:

Adjustable wrench
Plumber's putty
New pipe
Pipe cutter
Teflon tape

Step 2: Turn Off the Water Supply

Once you have your tools and materials, the first step is to turn off the water supply to the sink. This is usually done by turning the two shut-off valves located under the sink. If there are no shut-off valves, you'll need to turn off the main water supply to your house.

Step 3: Disconnect the Old Pipe

Once the water supply is turned off, you can disconnect the old pipe. To do this, use the adjustable wrench to loosen the nuts that connect the pipe to the sink and the water supply lines.

Step 4: Remove the Old Pipe

Once the nuts are loosened, you can remove the old pipe. Be careful not to spill any water that may be left in the pipe.

Step 5: Apply Plumber's Putty

Before you install the new pipe, you'll need to apply plumber's putty to the threads of the pipe. This will help to create a watertight seal.

Step 6: Install the New Pipe

Now you can install the new pipe. To do this, simply screw the pipe into the sink and the water supply lines. Be sure to tighten the nuts securely, but don't overtighten them.

Step 7: Wrap the Pipe with Teflon Tape

Once the pipe is installed, you'll need to wrap it with Teflon tape. This will help to prevent leaks.

Step 8: Turn On the Water Supply

Finally, you can turn on the water supply and check for leaks. If there are no leaks, then you're all done!

Additional Tips:

If you're not sure what size pipe you need, you can take the old pipe to a hardware store and ask for help.
If you're having trouble getting the nuts loose, you can try using a penetrating oil.
If you're not comfortable changing the pipe yourself, you can always call a plumber.