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Step 5 · Clean Valve and Install New Cartridge

Inspect the inside of the brass valve body for any rubber debris or mineral deposits. Clean it out with a clean rag wrapped around your finger or a small bottle brush. Take the new Moen 1222 cartridge and apply a light coating of the included plumber's grease (or silicone grease) to all the rubber O-rings. This is crucial for easy installation and a proper seal. Align the new cartridge with the 'H/C' (Hot/Cold) markings facing up, matching the orientation of the old one. Push the new cartridge firmly and evenly into the valve body until it is fully seated.

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Step 5 · Clean Valve and Install New Cartridge

Inspect the inside of the brass valve body for any rubber debris or mineral deposits. Clean it out with a clean rag wrapped around your finger or a small bottle brush. Take the new Moen 1222 cartridge and apply a light coating of the included plumber's grease (or silicone grease) to all the rubber O-rings. This is crucial for easy installation and a proper seal. Align the new cartridge with the 'H/C' (Hot/Cold) markings facing up, matching the orientation of the old one. Push the new cartridge firmly and evenly into the valve body until it is fully seated.

Tools and Materials

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How to Fix a Shower Faucet Leaking from Behind the Handle

Step 5 of 7·35 min left

Shut Off the Water Supply
10 minsBeginner
Remove the Faucet Handle
10 mins4 itemsIntermediate
Remove Escutcheon and Retaining Clip
15 mins1 itemsIntermediate
Extract the Old Cartridge
20 mins3 items
5
Clean Valve and Install New Cartridge
10 mins3 itemsIntermediate
6
Reassemble the Faucet
15 mins5 itemsIntermediate
7
Turn On Water and Test for Leaks
10 mins1 itemsBeginner
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