Can a shower cartridge leak behind the wall?

Most times shower valve leaks behind the wall are very slow. Usually, they are pinhole leaks from a faulty valve or sloppy soldering from the water connection points to the valve. Over the years the joint wears out or the flaw in the casting process of the valve rears its ugly head.

Why is my shower still leaking after replacing cartridge?

The reason why a cartridge faucet leaks after replacing the cartridge can vary based on your water quality, the age of the faucet, and the type of cartridge. First, the leak may not have been caused by a faulty cartridge. Water is full of calcium and other minerals that make it highly corrosive.

Why is my shower cartridge leaking?

When water drips or drizzles from a shower head, there is a problem with the shower faucet (valve). In most cases, inner seals are worn, or parts have become corroded or clogged with hard water deposits. And the rubber O-rings and gaskets that seal connections between moving metal parts wear down with time and use.

How do I stop my shower cartridge from leaking?

To fix a leaking shower head or faucet, it may be necessary to replace your old shower cartridge with a new one. The solution lies with fixing a cartridge-style faucet by replacing the shower valve cartridge. Cartridge valves feature a single handle and operate as the cartridge slides in and out.

How do you tell if you have a leak behind a wall?

What are the Signs of a Water Leak Behind Walls?

  1. Musty odors.
  2. Visible mold growth on walls and baseboards.
  3. Staining.
  4. Peeling or bubbling paint and wallpaper.
  5. Warped walls.
  6. Buckled ceilings and floors.

How do I find out where my shower is leaking from?

Quote from the video:
Quote from Youtube video: Okay now close the door as you normally would. And start spraying around the door. Okay okay so see this i'm getting some water dripping just spray it right in this corner.

How tight should a faucet cartridge be?

Be careful not to overtighten the packing nut; it should be just tight enough to stop leaking around the stem. If too tight, the handle will be hard to turn; if too loose, it will allow water to leak out around the stem.

How long should a shower faucet cartridge last?

Shower cartridges last for 20 to 30 years but may sometimes fail after only a few years. If you are not sure of your cartridge’s lifespan, you should plan to replace it after 15 years instead of waiting for it to completely fail.

Can a bad faucet cartridge cause a leak?

Bad Faucet Cartridge: In single handle faucet designs, there is a faucet cartridge inside that helps regulate the flow of hot and cold water. The cartridge can develop leaks as it starts to wear out.

How do you know if your shower cartridge is bad?

There are a few ways to tell if your shower cartridge has gone bad:

  1. Dripping or running water when you turn your shower off (most common)
  2. Difficulty turning the shower handle, which worsens over time.
  3. Shower handle gets stuck or “slips” and doesn’t turn on the water.

Why does my tub faucet leak when the shower is on?

A leaky shower diverter. A diverter may be an unfamiliar term. The diverter is a valve in your tub’s faucet that diverts water from the tub to the showerhead when the lever is pulled to turn on the shower. A small amount of water dripping out of your tub’s faucet is normal because the valve doesn’t have a perfect seal.

Why does my shower drip hours after I turn it off?

If your shower keeps dripping long after you’ve shut off the water, you’ve probably got a bad valve. It’s an easy repair you can do yourself in less than an hour.

How do I stop my tub faucet from dripping?

Quote from the video:
Quote from Youtube video: So with that said we need to turn off the entire water system and cut all water coming into the actual house. And we will turn it clockwise. And make sure it's tight.

Where is the O ring in a shower head?

A wrench or pair of pliers should do the trick. The O-ring, a circular rubber part of the fixture, is inside the showerhead. It attaches to the various threads when the head has been unscrewed. When this part of the showerhead breaks, it can cause leaks and may need to be replaced.

How do you replace a shower water valve?


  1. Lay a Drop Cloth in the Bottom of the Shower. …
  2. Remove the Shower Handle. …
  3. Unscrew and Clean the Trim Plate. …
  4. Turn Off the Water. …
  5. Inspect and Prepare the Area. …
  6. Remove the Retainer Clip. …
  7. Pull Out the Shower Valve Cartridge. …
  8. Install the New Shower Valve Cartridge.

How do I replace a bathtub valve?

Quote from the video:
Quote from Youtube video: Step 1 turn off the water to the bathtub. And shower at the shutoff valve let any remaining water flow out of the faucet. Step 2 remove the cap and screw from the faucet handle using a screwdriver.

How do I change a bathtub cartridge?

Quote from the video:
Quote from Youtube video: For a single handle Moen cartridge they're all held in place by a little retaining clip and so if you have an awl or a very small screwdriver. You're going to catch the end of the clip.

How much does it cost to replace shower cartridge?

between $200 and $400

On average, it costs between $200 and $400 to replace a shower cartridge. Various factors impact the replacement price, including labor, parts, and location. If you’re looking for a more accurate quote, then contact a plumber near you.

How much would a plumber charge to replace a shower valve?

Labor cost for plumber to replace shower valve

Plumbers charge $100 to $300 for labor alone to replace a shower valve or $225 to $575 for the valve with installation. Replacing a shower valve takes 1.5 to 3 hours on average, depending on type and accessibility. Replacing a shower cartridge takes 30 minutes to 2 hours.

How long do shower valves last?

A properly installed shower valve should serve you well for a long time. Even if you live in an area with hard water that causes limescale build-up in your appliances, you can expect to have a shower valve work well for about four or five years.