To stop your kitchen sink from dripping, especially if it's a double-handle faucet, the most common solution involves replacing worn-out internal components like gaskets and seat washers.
A persistent drip from your kitchen sink faucet is usually a sign that the internal rubber or silicone components, such as gaskets and seat washers, have become worn, hardened, or cracked over time. These parts are crucial for creating a watertight seal when the faucet is turned off. Fortunately, fixing a dripping faucet is a common DIY task that can save water and prevent higher utility bills.
Essential Tools You Might Need
Before you begin, gather the following tools to ensure a smooth repair process:
| Tool | Purpose |
|---|---|
| Adjustable Wrench | For loosening and tightening nuts and bolts. |
| Screwdriver (Philips/Flathead) | For removing handle screws and other fasteners. |
| Pliers | For gripping and manipulating small parts. |
| Utility Knife | To clean off old sealant or cut new washers. |
| Plumber's Grease | To lubricate new parts and ensure a good seal. |
| Replacement Parts | New gaskets, O-rings, and seat washers (specific to your faucet model). |
| Flashlight | For better visibility under the sink. |
| Bucket/Towels | To catch any residual water. |
Step-by-Step Guide to Fixing a Dripping Double-Handle Faucet
The process primarily involves disassembling the faucet handles to access and replace the faulty internal components.
Step 1: Turn Off the Water Supply
Before attempting any repairs, it is critical to shut off the water supply to your kitchen sink.
- Look for the hot and cold water shut-off valves typically located under the sink.
- Turn the handles clockwise until they are completely closed.
- Open the faucet on the sink to drain any remaining water from the lines and confirm the water is off.
Step 2: Remove the Faucet Handle
Accessing the internal valve stem requires removing the faucet handle first.
- Most faucet handles have a decorative cap or a small screw cover that can be pried off with a flathead screwdriver or fingernail.
- Once the cap is off, you'll typically find a screw (Philips or flathead) holding the handle in place.
- Unscrew the handle screw and carefully lift the handle off. Set it aside where it won't get lost.
Step 3: Unscrew the Valve Stem
Beneath the handle, you'll find the valve stem, which controls the water flow.
- Using an adjustable wrench or appropriate pliers, unscrew the valve stem from the faucet body. This may require some force if it's been in place for a long time.
- Gently pull the valve stem out once it's loose.
Step 4: Replace Old Gasket and Seat Washer
Upon inspecting the valve stem, you will likely find the worn components responsible for the leak.
- On the stem, remove the old gasket, screw (if applicable), and seat washer. These are typically small, rubber or plastic components that fit into specific grooves or seats.
- Note the order and orientation of these parts as you remove them, or take a picture for reference.
- Replace them with new, identical parts. It's often recommended to replace both the gasket and the seat washer, as both contribute to the seal.
Step 5: Apply Plumber's Grease
To ensure smooth operation and a better seal for the new components:
- Apply some plumber's grease to the new gasket, seat washer, and the threads of the valve stem. This helps lubricate the parts, prevents future sticking, and enhances the watertight seal.
Step 6: Reassemble the Faucet
Reverse the steps to put your faucet back together:
- Carefully insert the lubricated valve stem back into the faucet body and screw it in tightly with your wrench.
- Reattach the faucet handle, tightening the handle screw.
- Replace any decorative caps or covers.
Step 7: Restore Water Supply and Check for Leaks
Once everything is reassembled:
- Slowly turn the water supply valves back on under the sink.
- Check the faucet for any drips or leaks. It might take a moment for the water pressure to fully restore.
- If the drip persists, you may need to recheck the new parts for proper seating or consider if other internal components (like O-rings) need replacement.
By following these steps, you can effectively stop your kitchen sink from dripping and restore it to proper working order.
