If the shower turns off and on without issue, don’t touch this. You’ve got galvanized pipes, which corrode internally and can be a real headache to work with. There’s always a risk that if you unthread the valve from the galvanized, the galvanized pipe will disintegrate. Now you’re replacing that section of galvanized by unthreading it from the next fitting. But then it disintegrates again. At that point, you’re repiping your home. I have seen this. I have done this. You do not want this. You can attempt to replace the stems of the valve, but even that can be risky on an extremely old valve. Your best bet may be to call a plumber. 100 year old plumbing hates being touched, especially by someone who doesn’t work with it for a living. Answer from Decibel_1199 on reddit.com
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The Home Depot
homedepot.com › diy projects & ideas › home decor ideas › bathroom ideas & projects
How to Replace a Shower Faucet - The Home Depot
September 7, 2023 - Integral stops let you service a single faucet without having to turn off the main water supply. When replacing a shower faucet, take off the shower head by turning the connecting nut counterclockwise with a pair of pliers. Faucet handles can be removed in different ways.
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The Home Depot
site-5844.bcvp0rtal.com › detail › videos › bath › video › 3819647024001 › how-to-install-a-new-shower-faucet
How To Install A New Shower Faucet - Bath - How To Videos and Tips at The Home Depot
Want to install a new shower faucet? This video will walk you through the entire process and give you the step-by-step instructions you need for a successful installation.
Published   October 3, 2014
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Quora
quora.com › How-do-you-replace-a-single-handle-delta-shower-faucet
How to replace a single handle delta shower faucet - Quora
Answer (1 of 2): Delta isn't that hard to change. Just start disassembling everything that unscrews. Well except for the two that hold the trim plate, leave them alone. You'll need a small allen wrench to take off most knobs, if you have a clear ...
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PJ Fitzpatrick
pjfitz.com › how-tos › how to replace a shower handle
How to Replace a Shower Handle - Do It Yourself | PJ Fitzpatrick
April 4, 2022 - Before starting the project, you need to buy a replacement handle. Most showers have a single handle. This type is the quickest and easiest to fix. Single handle shower knobs usually slide right off the stem valve once you remove the set screw. However, a shower with two or three handles might have handles screwed onto faucet ...
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This Old House
thisoldhouse.com › home › how to replace a shower valve
How to Replace a Shower Valve This Old House
Open the shower faucet to relieve any remaining pressure in the lines. Cover the drain to prevent small parts from falling in. Remove the shower handle and escutcheon plate to expose the valve.
Published   July 8, 2025
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Reddit
reddit.com › r/askaplumber › i want to replace all of the knobs and faucet and shower spout thing
r/askaplumber on Reddit: I want to replace all of the knobs and faucet and shower spout thing
May 13, 2025 -

My plumbing is from 1930s, with the exception of a pipe my plumber replaced. What started as recaulking has turned into a bigger ordeal than I thought. My EX boyfriend grouted and didn’t seal it and filled the spaces behind the tile with plumbers putty or grout or both. (I’ve identified the leak and repaired the kitchen ceiling). I have cleaned it out and want to replace it all but will the old pipes work with newer hardware? Is it called hardware? 😂My new best friends at our local hardware store have walked me through a lot of my issues and I’m relatively capable but am I looking at a huge difficult project? Thank you! PS of course I will diligently caulk everything!

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Reddit
reddit.com › r/plumbing › help replacing cartridge on single handle shower faucet
r/Plumbing on Reddit: Help replacing cartridge on single handle shower faucet
May 1, 2023 -

I can only get hot water out of my shower and my googling has led me to believe I need to replace the cartridge in the handle. There's no markings to indicate what brand of faucet this is. I *think" I should be unscrewing some screws around the cartridge so I can slide it off, but there's a black plastic frame in the way which is labeled "remove before installation" 🙄 Am I SOL here or is there a way to fix this?

Find elsewhere
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Moen Solutions
solutions.moen.com › Single_Handle_Shower:_Standard_Valve
Single Handle Shower: Standard Valve - Moen Solutions
October 20, 2022 - In order to repair and service your shower system, you will need to determine which type of rough-in valve and interior handle mechanism build your shower system has. Follow the steps and use the charts below: Example: ... Handle Mechanism: Knob. ... Moen produces a variety of Single Handle Shower: Standard Valve.
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Reddit
reddit.com › r/homeimprovement › changing trim and handle on shower faucet
r/HomeImprovement on Reddit: Changing trim and handle on shower faucet
August 25, 2021 -

I am currently have these shower faucets on two of my showers and looking to update it for something more modern.

https://imgur.com/a/JAhaKs8 (looks to be either a Moen L64621 or Moen L2353)

I saw a couple shower faucet sets at Lowes and home depot. Can i just swap out the trim and handle or do i need to install the whole assembly including the valve? Box states it come with Posi-Temp valve.

is it possible i can use the trim and handle with the existing valve?

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1 Tom Plumber
1tomplumber.com › single-handle-shower-cartridge
How To Replace A Single-Handle Shower Cartridge | 1-Tom-Plumber
June 27, 2025 - Unscew and remove the handle. Lift off the handle and pull it off the stop tube to reveal the stem of the cartridge and its retainer clip. The retainer clip secures the cartridge to the faucet body.
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YouTube
youtube.com › watch
Shower Repair : How Do I Replace a Single Control Shower Faucet? - YouTube
A single control shower faucet can be replaced with the appropriate application of the right tools. Replace a single control shower faucet with help from a l...
Published   January 26, 2012
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YouTube
youtube.com › watch
How to Replace a Single Knob Shower Faucet - YouTube
How to Replace a Single Knob Shower Faucet. Part of the series: Bathroom Fixture Repair. A single knob shower faucet replacement is easiest when you use the ...
Published   December 15, 2020
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Reddit
reddit.com › r/plumbing › changing single handle shower faucet.
r/Plumbing on Reddit: Changing single handle shower faucet.
January 7, 2024 -

I have a single handle (Moen?) shower faucet. I want to change over to a temperature and flow control. Can I just change the cartridge to a dual control or does the complete valve need to be changed?

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The Spruce
thespruce.com › how-to-replace-a-shower-valve-5197461
How to Replace a Shower Valve
June 25, 2025 - Block off the drain to prevent screws, washers, and other small parts from being lost in the drain. ... Remove the shower handle cover (not the larger trim plate) with a flat-head screwdriver to locate the screw.
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Leaky Faucet Guide
leakyfaucetguide.com › home › one-handle tub/shower faucet video
Repair a Leaky One-Handle Tub and Shower Faucet Video
May 13, 2025 - Align the peg and notch on the ball assembly to ensure proper installation into the Faucet. Install the replacement Gasket Cam and Plastic Cam over the top of the Ball and place the Cam Nut over the Plastic Cam, and then tighten the Nut with Pliers.
Top answer
1 of 3
2

I assume you want to replace the faucet.

Options:

  1. Drill it out. You don't care if you wreck the stem of the valve.

  2. Drill and try an extractor. I usually never can find one the right size. I have a set. Somewhere.

  3. Once your pretty sure that it's not holding the handle on, you may need additional persuasion to get the handle off.

    • Start off with a low viscosity lubricant, such as bolt-out. Caution may change the colour of grout.
    • The handle may be cemented on with calcium/magnesium carbonates (what makes water hard) Soaking in passivated muriatic acid may release it. This will take hours to days. Caution: Review safe acid handling.

    • If the handle is metal you can try heating it with a heat gun. If the valve itself is plastic this may make life more difficult.

    • If you decide to to pry it off, protect the wall with a couple of chunks of 2x4. Run them horizontally and pry from above and below. If working alone, you can hold them in place temporarily with duct tape. A 2 foot chunk will span standard stud spacing. This, I think will minimize any flexing of the wall which might crack tile or grout.

    • A better way may be to rig something using puller jaws and a a slide hammer.

In response to a comment: Turn off the water, and have your replacement parts ready. Depending on how cheap the contractor who built the house was, there may or may not be individual shutoffs for the shower or just hte bathroom. I've done many repairs that required shutting off water the entire house. As a result of this, my first step in a repair is to add additional shut off valves. (I live a 40 minute drive from the nearest big box store. Few repairs are done without at least two trips to the store. Being without water all day isn't a win. I now keep a couple of quarter turn ball valves in 1/2" solder ends (since I have a copper plumbed house) on hand so I can start with that.)

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If you do try to drill the screw out a left-hand drill bit might be worthwhile. I've had a few occasions when drilling a broken fastener with a left-hand drill removed the fastener. I don't know that I've ever had success with an extractor -- it's difficult to get the hole centered, the right size, adequate depth.. and then the extractor just shatters in the hole anyway.

The handle could be removed in sections. Using a hack saw or reciprocating saw, cut the main part off perpendicular to the stem and far enough back from the valve body that the saw cuts only handle, not stem. Next cut what remains of the handle along the axis of the stem so that the handle shell can be split into two halves and broken away. A rotary tool such as a Dremel may be useful here. Hopefully at this point you'll have reached the inner part of the handle casting which is actually contacting the stem. Repeat the cut-and-split process on this piece too.

There's some chance of damaging the valve stem or the escutcheon, but both of these as well as the handle can be replaced individually if desired.

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Renos 4 Pros & Joes
renos4prosandjoes.com › home › video | blog › can a leaky shower faucet be repaired?
Can a Leaky Shower Faucet be Repaired? - Renos 4 Pros & Joes
May 31, 2019 - Regardless of whether you have ... first option is to remove the shower diverter valve stem(or hot and cold valve stems) and replace the worn out washers, rings and other components and then reinstall it....
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HomeGuide
homeguide.com › cost guides › cost to replace shower faucet
Cost to Replace Shower Faucet (2025)
August 19, 2024 - Some replacements require additional parts such as connectors, fittings, or mounting hardware, especially if the existing setup is outdated or incompatible with the new faucet. Number of handles: The configuration of the shower faucet can affect the installation process.