man using pliers to remove old faucet cartridge
Photo: Geoffrey Gross
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Remove the Old Cartridge

Remove the cartridge, but first note the location of the small notch at the top of the stem. When you install the new cartridge, make sure the notch points in the same direction. Plumbers use a special tool to pull the cartridge from the faucet, but pliers also will work (it just might take some wiggling to break the tension). Retrace your steps to install the new cartridge.

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