Removing a sink drain usually involves disconnecting the stopper mechanism and then unscrewing the drain body itself. Here's a step-by-step guide:
1. Disconnect the Stopper
- Locate the Pivot Rod: Look under the sink to find the pivot rod connected to the tailpiece of the drain. This rod controls the pop-up stopper.
- Loosen the Nut: There's a nut that secures the pivot rod to the drainpipe. Loosen this nut, typically by hand or with pliers if it's too tight.
- Remove the Pivot Rod: Once the nut is loose, carefully pull the pivot rod out horizontally. As you remove it, a ball-shaped plug attached to the rod will come out as well. Keep track of any washers or seals.
- Remove the Stopper (if possible): Now, try to simply lift the stopper straight up and out of the sink drain from above. Sometimes, mineral buildup or debris makes this difficult.
2. Loosen the Drain Body
- Clear Debris: Clean any debris or plumber's putty around the top of the drain in the sink basin.
- Use a Drain Wrench or Plumbers Pliers: Place a drain wrench (also known as a spud wrench) or large adjustable plumbers pliers into the drain opening. The goal is to grip the crossbars inside the drain body. If using pliers, ensure you have a good grip.
- Turn Counterclockwise: Apply steady pressure and turn the wrench or pliers counterclockwise to loosen the drain body. It might be tight, especially if it's old or corroded. A penetrating oil, like WD-40, applied to the threads from underneath the sink, may help. Let it sit for 15-20 minutes before trying again.
- Consider a Drain Removal Tool: If the drain is particularly stubborn, you may want to invest in a specialized drain removal tool. These tools are designed to provide better grip and leverage.
3. Remove the Drain Body
- Unscrew by Hand: Once you've loosened the drain body with the wrench or pliers, you should be able to unscrew it the rest of the way by hand. Work from both above and below the sink, turning and supporting the drain body as you go.
- Separate the Pieces: The drain body typically consists of several parts: the flange (the part you see in the sink), the drain body itself, and a rubber or plastic gasket. Separate these pieces carefully.
4. Clean the Sink Opening
- Remove Old Putty or Caulk: Scrape away any old plumber's putty or caulk from the sink opening. A putty knife or razor scraper can be helpful.
- Clean the Surface: Clean the area with a solvent to remove any residue.
Important Considerations:
- Shut off the Water: Before starting any plumbing work, turn off the water supply to the sink.
- Have a Bucket Handy: Place a bucket under the sink to catch any water that may spill.
- Wear Gloves: Protect your hands by wearing gloves.
- Photograph the Assembly: Before disassembly, take a picture of how everything fits together. This will be helpful when you install the new drain.