Fittings or sink drain holes may also be leaking. If this is the case, simply tighten the sink drain connections. If the drain strainer and tailpiece units are worn out, consider replacing the sink drain fitting. You can usually fix the leak simply by tightening the loose connections.

Why is my new drain pipe leaking?

Loose Compression Nut:



Likely the most common reason why your drain pipe is leaking at the connection. A loose compression nut will not seal the pipe correctly, so be sure to check the condition of the compression nut prior to scheduling a plumber to come out.

How do you reseal a bathroom sink drain?





Make sure the depressed area around the sink drain is also clear of any built-up material. Afterwards, apply a bead of silicone caulk around the drain hole in the sink. Then, apply a second bead along the underside of the drain flange.

How do you stop a sink tailpiece from leaking?

Running water through the sink drain and observing the tailpiece with a flashlight should help you determine if it is leaking. Leaking tailpieces usually allow water to seep out of its connections. Tightening the slip nuts or replacing the plastic slip washers should correct this problem.

How do you seal drain threads?


Quote from Youtube video: You can put a very thin rope of plumber's putty in this gap. Turn the drain nut clockwise. You tighten it in to meet resistance.

Why does bathroom sink drain leak?

A simple tightening of the nut can stop the leak. Sometimes, the answer isn’t so simple. An uneven gasket or rubber washer—which is used to make a seal between the nut and sink—can also cause the drain leak. Reimer can replace these with with even and flat washers to stop the leak.

How do you stop a plastic drain pipe from leaking?





If you’re dealing with a minor leak, rubber and silicone repair tape is a simple solution. Like fiberglass resin tape, rubber and silicone tape come in a roll that can be wrapped directly around the PVC pipe. However, instead of adhering to the pipe, the repair tape adheres directly to itself.

Do I need plumbers putty for bathroom sink drain?

If you need to stop or prevent leaks around your faucet, sink or tub drains − plumber’s putty is the product you need.

What is a good sealant for sink drains?

A clay-like substance called plumber’s putty is the most popular choice for sealing sink drains, but you can also use silicone caulk.

  • Most Popular: Plumber’s Putty.
  • Plumber’s Putty Installation.
  • Alternative: Silicone Caulk.
  • Silicone Caulk Installation.


Can I use silicone to seal sink drain?



You can use silicone caulk or plumber’s putty to seal sink drains. Plumber’s putty may crack and cause leaks as the clay dries out with time.

How tight should bathroom sink drain be?

Quote from the video:
Quote from Youtube video: Only tighten it by hand till it's hand tighten. Because if you tighten it too tight you're going to deform this gasket. And it won't sit snug against the bottom of that Basin hole down there.

Do I need plumbers putty with a rubber gasket?

The rubber gasket should be sufficient to seal without putty.

How do you replace a bathroom sink drain flange?



Quote from the video:
Quote from Youtube video: This little metal clip and push away and that will release it next loosen this nut. And pull out this run. Now this piece will unscrew. Completely. This nut will come off.

How do you fix a leaky sink flange?

Quote from the video:
Quote from Youtube video: See that the rubber gasket is up against the sink and the friction gasket is below that so now I'm going to go ahead and screw. This on and then tighten it as best I can.

What is the flange on a bathroom sink?

The flange in your bathroom sink is the collar that surrounds the sink’s drain. It is usually made of metal, but may be made of plastic and coated in a metallic finish. If this flange cracks or erodes, it can cause water to leak through the sink at this point.

What is a sink flange gasket?

A sink flange is a device used to connect a sink with a drain pipe. Typically made with a threaded design, a sink flange is attached to the sink prior to the drain pipe connecting to the flange. Both gaskets and plumber’s putty are used to prevent leaks from a sink flange when it is installed.

Where does the rubber gasket go on a sink drain?



The Flange of the basket strainer goes on the inside of the sink and the rubber washer/gasket, paper gasket, pressure cup and nut are under the sink. The rubber washer seals the sink from below, putty or caulk seal the flange to the sink from above.

How do I replace a sink gasket?

Quote from the video:
Quote from Youtube video: While snugging it down you want to have one hand hold the threaded part and one hand turn the nut that way you don't spin the basket in the sink.