How to Fix a Leaky Faucet?

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A dripping faucet can waste water and increase your utility bill. Fixing it is often straightforward and can save you money. Most leaks are caused by worn-out washers, O-rings, or seals.
Tools & Materials Needed
Steps
Step 1: Turn Off the Water Supply
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Locate the shut-off valves under the sink.
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Turn them clockwise to close the water supply.
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Open the faucet to release any remaining water in the pipes.
Step 2: Plug the Drain
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Use a sink plug or cloth to block the drain.
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This prevents small parts from falling down the drain while you work.
Step 3: Identify Your Faucet Type
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Compression (old-style, separate hot and cold handles)
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Ball-type
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Cartridge
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Ceramic-disk
Knowing your faucet type helps you identify which parts need replacement.
Step 4: Disassemble the Faucet
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Remove the handle(s) using a screwdriver or Allen wrench.
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Carefully remove the decorative cap (if present).
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Take off the packing nut or retaining clip.
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Remove the stem, cartridge, or ball assembly, depending on your faucet type.
Tip: Take a photo during disassembly to remember the order of parts.
Step 5: Inspect and Replace Worn Parts
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Washers: Check for cracks or flattening. Replace if damaged.
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O-rings: Examine for wear and replace if necessary.
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Cartridge or stem: Inspect for corrosion or damage; replace if needed.
Pro Tip: Take old parts to a hardware store to ensure you get exact replacements.
Step 6: Reassemble the Faucet
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Apply plumber’s grease to new O-rings and washers.
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Reinsert the stem, cartridge, or ball assembly.
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Secure packing nuts or retaining clips.
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Reattach handles and decorative caps.
Step 7: Turn Water Back On
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Remove the drain plug.
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Slowly turn the shut-off valves counterclockwise to restore water flow.
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Check the faucet for leaks.
Step 8: Test the Faucet
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Turn the faucet on and off several times.
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Make sure there’s no dripping and that the handles move smoothly.