Fix a Leaky Moen Bathroom Faucet in less than 15 minutes

Fix a Leaky Moen Bathroom Faucet in less than 15 minutes

Does anyone else get irritated when the bathroom faucet drips constantly? It drives me completely nuts to see water just being wasted day in and day out. And apparently my youngest daughter feels the same way: she came to me the other day complaining about water coming from the faucet even though she hadn’,t turned it on yet. At this point it was pretty clear that I needed to take care of this tiny issue

In this quick tutorial I’,ll share how to replace the cartridge in a MoenВ bathroom faucet in less than 15 minutes. Faulty cartridges are one reason you get water leaking from bathroom faucets and they’,re easy to replace. So let’,s begin.

Lefty or Righty, That is the Question?

The first step in fixing any two handled faucet drip is to determine which handle has a bad seal. To test the left handle’,s seal you’,ll need to turn the water off to the right handle. Under your sink there should be two shutoff valves that connect the water lines to each respective faucet handle. The setup will look like the picture below.

Turn off the right handle’,s shutoff valve by turning it to the right until it stops. Then turn on the right handle at the sink to release the remaining water that’,s in it. Check the faucet to see if there are any leaks. Even if you do see leaks this indicates the left handle’,s seals are bad.

You should also test to make sure the right handle is in good shape.

In order to do this you need to turn the right faucet handle’,s shutoff valve back on. Make sure water is running to the right faucet В handle then turn it back off. Now turn off the left handle’,s shutoff valve and release all the water out of it’,s supply line by turning the handle to the on position. Does the faucet have any drips of water coming out of it? If the answer is no then your right handle has good seals.

In my case there were still leaks when the right handle’,s shutoff valve water was turned off. This indicated a bad seal in the left faucet handle.

Let the Dismantling Begin

This is the fun part for me, taking apart the faucet. I always encourage you to take pictures of the process in case you need to refer back to how the setup use to be before it was fiddled with.

In the case of this Moen faucet I needed to unscrew the base of the faucet handle. If you have a similar handle you can accomplish this by hand most of the time. Turn the base to the left to unscrew it.

This will expose the brass nut that holds the cartridge in place. You’,ll need to loosen the nut with a pair of channel locks. Turn the brass nut to the left to unscrew it.

At this point myВ big tipВ  is to take a picture of how the cartridge sits in the faucet handle body. There are usually small square tabs on the cartridge that secure it in place but you’,ll also need to pay attention to the cartridge stem position.

Take the cartridge with you to the hardware store or Home Depot or Lowes in order to find the correct replacement. I recommend buying the name brand replacement cartridge. Sure they’,re a bit more expensive ($10-12) but at least you know they’,ll work.

It Doesn’,t Get Any Easier

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