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Install New Cartridge and Clip — Install New Cartridge

Beginner

Part of project

How to Stop a Dripping Single-Handle Kitchen Faucet by Replacing the Cartridge · Step 9 of 11

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In this video

Carefully push the lubricated new cartridge into the valve body. Align the tabs on the cartridge with the slots in the valve. The Moen 1225 can be inserted with either side up. Once inserted, use the provided plastic tool to slightly rotate the cartridge until the grooves for the retaining clip are perfectly aligned. Re-insert the retaining clip, pushing it all the way down into its slot to secure the cartridge.

Goal: Install the new cartridge

  • Make sure the retaining clip is fully seated in both the top and bottom grooves to prevent the cartridge from coming loose under water pressure.

Used in this video

  • Plastic Alignment Tool (brand: Moen (included with cartridge), Tool Type: Plumbing Tools, Power Source: Manual)Rotating the cartridge for proper clip alignment.
  • Channel-lock pliers (Tool Type: Plumbing Tools, Power Source: Manual) · optionalAssisting with cartridge rotation if the plastic tool is not sufficient.
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FAQs

What tools will I definitely need for this specific faucet cartridge replacement?

You'll primarily need a screwdriver (like the Milwaukee Flat Head), an adjustable wrench (such as the Crescent AC212VS), and pliers (like the Husky Groove Joint or Channellock Long Nose) to disassemble and reassemble the faucet components. A hex key set (GEARWRENCH 83510) might also be necessary if your handle uses set screws.

How can I ensure I purchase the correct replacement cartridge for my single-handle kitchen faucet?

The most crucial step is identifying your faucet's brand and model number, usually found under the sink or on the faucet itself. If that's not possible, carefully remove the old cartridge and take it to a hardware store to match it, like the MOEN 1225 specified in the materials, to ensure compatibility.

What are the most common mistakes beginners make during this project, and how can I avoid them?

A common mistake is not fully shutting off the water supply, so always confirm both hot and cold valves are off. Another is losing small parts like screws or the retaining clip (OMUR Connecting Clips) down the drain, which can be prevented by plugging the sink drain with a rag or towel (WYPALL L40 Towels).

How long should this project take for a beginner, and is it truly a 'beginner' difficulty task?

Yes, this is a beginner-friendly project, designed to be straightforward for most DIYers. For someone new to plumbing, it should typically take about 30-60 minutes, assuming you have the correct replacement cartridge and all necessary tools readily available.

Transcript
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It's important to get those o-rings and rubber pieces all nice and greased up before putting this cartridge in and the 1225 model is different than the posi-temp in the 1222 You can actually put this thing in any direction. It doesn't matter as long as those two tabs are on top and bottom And then there's a little notch on the brass piece that the handle attaches to just make sure that little notch is up top And don't worry if you install it and turn the water on and realize that that notch isn't On the top facing up then just simply grab a hold of it with your pliers and spin it around until it is facing up The alignment of the cartridge is very important so you'll see me use this plastic piece that slightly turn it to the left

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