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Reassemble and Test Faucet — Reassemble and Test

Beginner2 hours

Part of project

How to Repair a Leaky Faucet: A Step-by-Step DIY Guide · Step 4 of 4

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In this video

Slide the cleaned cartridge back into the faucet body, making sure it is properly seated and aligned. Screw the bonnet nut back on and tighten it snugly by hand. Re-attach the handle to the stem and tighten the set screw with the Allen wrench. Slowly turn the water supply valves back on. Finally, test the faucet to confirm that water pressure is restored and check for any leaks around the handle.

Goal: Plumbing Fixture Repair (Leaking)

Used in this video

  • Allen wrench/hex key (brand: Unspecified, Allen Wrench/Hex Key Size: Small)Tightening the set screw on the faucet handle.
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FAQs

Is this a truly beginner-friendly project, and can it really be done in two hours?

Yes, this is considered a beginner-level DIY project, especially for common leaks caused by worn washers or O-rings. While the estimated time is 2 hours, it can vary depending on your faucet type, the age of the faucet, and how easily components can be disassembled. Patience is key, but most first-timers find it manageable.

What tools are absolutely essential for this repair, and what if I don't have them all?

You'll definitely need a flathead screwdriver (like the Milwaukee 8 in. x 3/8 in. Slotted Flat Head) for the decorative cap, a Phillips head or another flathead for the handle screw, and an adjustable wrench for the packing nut on compression faucets. If you don't have the exact brand, ensure you have appropriate sizes to avoid stripping screws or nuts. Having a small cup for removed parts is also helpful.

Why is turning off the water supply so important, and how do I do it correctly?

Turning off the water supply is the most crucial first step to prevent flooding and allow safe work on the faucet. Locate the shut-off valves directly under the sink and turn them clockwise until they are tight. If your sink doesn't have individual shut-off valves, you'll need to turn off the main water supply to your house, usually found near your water meter or main pipe entry.

How do I know which specific O-rings and washers I need for my particular faucet model?

The most reliable method is to remove the old O-rings and washers and take them to a hardware store to match their size and material. If your faucet has a visible brand and model number, note it down, as this can help you find a specific repair kit. Many stores also sell universal O-ring and washer assortment kits which can be very useful for matching sizes.

Transcript
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So we're going to simply remove the boulders on this job. If you need a replacement cartridge, take it with you to the stores to get the exact one.

Auto-generated transcript. May contain errors.