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Remove Old Sink Strainer — Preparation and Removal of Old Drain

Beginner4 hours

Part of project

How to Install a Bathroom Sink Drain and P-Trap · Step 1 of 7

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In this video

First, place a bucket or pan under the P-trap to catch any residual water. Loosen the slip nut connecting the tailpiece to the P-trap. Next, remove the large retaining nut that holds the strainer to the sink. If it's corroded, it may break off, or you may need to use pliers or even a chisel. Since you are replacing the entire unit, damaging the old strainer is acceptable. Once the nut is off, push the entire old strainer assembly up through the top of the sink and remove it.

Goal: Remove Old Sink Strainer

  • Place a bucket and a cookie sheet or pan underneath the work area to catch any water or debris that falls during disassembly.
  • The old retaining nut may be heavily corroded and difficult to remove. It is acceptable to break it off since it is being replaced.

Used in this video

  • Channel-Lock Pliers · optionalLoosening stubborn retaining nuts and slip nuts.
  • BucketCatching water from the P-trap.
  • Cookie Sheet · optionalCatching small debris and protecting the cabinet base.
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FAQs

Is 4 hours a realistic time estimate for a beginner, or should I allocate more time for this project?

The 4-hour estimate is a good average for someone with basic DIY skills. However, beginners should budget an extra 1-2 hours, especially for dealing with corroded old components or unexpected issues. Rushing the leak test is a common mistake, so take your time and don't feel pressured by the estimate.

What's the most common mistake beginners make that leads to leaks, and how can I prevent it?

The most common mistake is improper sealing or overtightening/undertightening connections. Ensure you apply plumber's putty correctly around the drain flange and hand-tighten all plastic connections. For metal components, hand-tighten and then only a quarter turn more with pliers to avoid stripping threads or cracking pipes.

The guide mentions plumber's putty for the drain flange; can I use silicone sealant instead for a better seal?

While silicone sealant can be used for the drain flange, plumber's putty is often preferred for its ease of use, pliability, and easy removal if adjustments are needed. If you choose silicone, use a kitchen/bath-grade product and allow adequate curing time before running water to test for leaks, as it's harder to adjust once set.

Beyond the listed tools, are there any other essential items or safety gear I should have on hand for this plumbing project?

Yes, always have a bucket or old towels ready to catch residual water during old drain removal. Safety glasses are recommended, especially when cutting pipes or dealing with potential splashes. Gloves can also protect your hands from grime and chemicals, making the job more comfortable and clean.

Transcript
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Just a friendly reminder, go ahead and hit that subscribe button. In this case, you can see that I don't have to do any extra work to get this off because it was so corroded, rested and damaged, hit it, fell right off. Sometimes this can be really difficult to get off, you might have to chisel it off, you might have to knock it off, but you don't have to worry about damaging those threads because you're going to be replacing all that. We're going to want to undo this here which means this we might not have to take off because we can get it completely up and through the top of the sink. You may have water in this trap so you may want to put down a cookie sheet or a bowl or both because you never know what's going to come out of here even though we're not going to remove it, we need to protect what's down underneath and we're going to go ahead and just push up a little bit and you can see not only did we have a bunch of material fall down onto that cookie sheet so that was a good thing that we placed that there, we're just about half done. Now if we come up to the top side of the sink here, well you can see we push that up and

Auto-generated transcript. May contain errors.