Moen shower cartridge removal


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Old 09-23-22, 04:01 PM
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Moen shower cartridge removal

Trying to replace single arm moen shower cartridge as shower head leaking. Started off bad as handle set screw rusted. Was able to drill it out, take off escutcheon plate, and see what looks to be the retaining clip. This is recessed behind


this plastic wheel that is behind the one-piece shower. Am I supposed to carefully pullout the clip? Seemed like a simple repair at the time.

 
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Old 09-23-22, 06:20 PM
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Old 09-24-22, 07:23 AM
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You had a "bath fitter" installed over the existing tub/shower. Correct? Because of this the retaining ring is recessed and will be a bit of a PITA to get out and even harder to put back in.
A very thin needle nose pliers will be a big help. And don't drop the ring. It's brass and not magnetic.
 
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Old 09-24-22, 07:57 AM
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Norm201 - no, this is the original molded shower stall that the house was built with in 2000. We are orig owners. Is the round plastic ring behind the wall needed? May be easer to get to the clip if I cut some of this away. Wonder what else I will find lurking behind the walls. Maybe itís time for a shower upgrade ( and not bathfitters lol)

I will try and get the clip out without dropping it, who knows if I can get it back on after installing new cartridge. cartridges are always hard to get out, is the clip actually holding it in against the water pressure when shower running?
 
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Old 09-24-22, 08:19 AM
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The plaster ring can be cut as needed to get that clip out.
 
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Old 09-24-22, 09:13 AM
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Not sure what the large plastic cover is but you need to remove it so you can pull the clip out. The cartridge is secured by the clip. You can't pull the cartridge without removing the clip.
 
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Old 09-24-22, 09:15 AM
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Cut out that little plastic section that separates the oval hole from the clip. That should make it a lot easier.
I've installed several of these in past years, but I don't remember when that plastic piece is used. I believe it necessary when using this with thin wall as a backing plate. In fact, you can see the printed words "thin wall" on the plate. If I'm correct I think that plastic plate should be flush with the surface of the shower wall.
 
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Old 09-24-22, 10:24 AM
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Thanks everyone! I will cut the plastic piece by the oval to access the clip.

I canít remove the plastic backer completely as thats where the escutcheon plate is screwed into.
 
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Old 09-24-22, 10:43 AM
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thats where the escutcheon plate is screwed into.
​​​​​​​That's right. I forgot about that.
 
 

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