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How to Fix a Pop-up Drain Stopper

When a pop-up drain stopper doesn't work, the solution usually involves a simple adjustment beneath the sink.©PeterVrabel / Shutterstock.com

When a pop-up drain stopper doesn’t work, the solution usually involves a simple adjustment beneath the sink.

The most common problems with pop-up stoppers are that they don’t close fully, fit the drain flange tightly, or open easily when the lever or knob is engaged.

Stoppers that don’t close can keep the drain or tub from filling properly and waste water. Stoppers that don’t open readily or don’t open all the way make water drain sluggishly. These kinds of stopper problems are mechanical and can be solved with simple adjustments.

It’s easy to remove a tub stopper to check it for mechanical problems or blockage. Simply pull it out along with the rocker arm.

Check the rubber seal, if there is one, for damage, and replace it if necessary. Clear the stopper of hair and debris. Slip on a new rubber seal if needed. Then make sure the flange is tightly seated and in good shape. (Older tubs may have corroded flanges.)

Water may leak or refuse to drain around a sink pop-up for a number of reasons. If your sink pop-up won’t pop up or seat properly, fixing it is quite easy—usually just a matter of adjusting a few parts. The culprit is often a buildup of hair around the base of the stopper or the pivot rod mechanism. Or, the clevis may be out of adjustment (see illustration to identify the various parts).

The pivot rod beneath the sink connects the pop-up to the sink-top lever.LightWaveMedia / Shutterstock.com

The pivot rod beneath the sink connects the pop-up to the sink-top lever.

Here’s how to fix the problem:

Remove the pivot rod under the sink

1With a slight twist, try to lift out the stopper. If it seems to be linked to the mechanism below, reach under the sink and unscrew the pivot rod retaining nut and pull out the pivot rod to disengage it.

2Lift the stopper from the drain. Clean off all hair and debris. If the stopper is broken or its seal looks worn, replace it.

3Face the hole at the bottom of the stopper toward the pivot rod’s location, and drop the stopper back into the drain hole. Insert the pivot rod so that it engages the hole in the bottom of the stopper, and tighten on the retaining nut with the stopper in its up position. When the drain is closed, the pivot rod should slope slightly uphill from the clevis to the tailpiece.

4Loosen the set screw on the clevis and adjust the strap up or down so that it operates the pivot rod to open and close the stopper. Retighten the set screw.

Loosen the clevis screw to adjust the lift rod.

5If adjusting the clevis screw doesn’t help, reset the pivot rod by squeezing the spring clip and freeing the pivot rod. Move the clip up to the next clevis hole and insert the rod. You may need to keep tweaking this a little to find the right hole on the clevis.

6If water drips from around the pivot ball, tighten the retaining nut that holds the ball in place. You may also need to replace the gasket or washer (or both) inside the pivot ball-and-rod assembly.

Keeping drains clear of hair, soap and shampoo residue, and other debris is one of the best ways to help keep pop-up stoppers in good working order.

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About Don Vandervort
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Don Vandervort developed his expertise more than 30 years ago as Building Editor for both Sunset Books and Home Magazine. He has written more than 30 home improvement books and countless magazine articles. He appeared regularly on HGTV’s “The Fix,” and served as MSN’s home expert. Don founded HomeTips in 1996.

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7 Comments

  1. i unstopped my girlfriends bathroom drain the other night and to get the hair clog out i had to take the pivot assembly apart . prior to taking the pdrain apart there were no leaks under the sink ,but upon clearing the drain and putting everything back together there is a leak around the thread
    area of the pivot assembly, i am not very popular with her now cause i unclogged the drain but now there is a leak . there isnt a washer on the pivot assembly , i am not sure if it fell of during disassembly or if there just wasnt one. help !!! what is the easiest fix for this problem?

    Reply
    • Thread seal tape.

      Reply
  2. I happened on this page because I needed to get bathroom sink terminology so I can submit my invention on line regarding bathroom sink installations. I see your post is 6 months old so your problem has probably been resolved. I would have recommended Flex Seal.

    Reply
  3. I am constatly amazed at the intricacies of American plumbing! The one I have to repair has the pivot rod sheared on the inside of the drain but it looks as simple as replacing the pivot rod. Now all I have to find is a local hardware store with one in stock!

    Reply
  4. If you have a grease clog, you should be able to clear that up with dish soap and hot water. Try to remove as much water as possible first and then pour a half cup of dish soap in the drain. Then you want to follow that with about a half a gallon or two liters of the hot water. It may take up to 30 minutes, but this should clear things up.

    Reply
  5. i’ve purchase a place and both hand basins have popup drains. Neither drain has popped up. So i put vinegar and bicarb in the sink for a couple of days. That didn’t work, so i looked online for help. I’ve noticed that all the bits under the sinks (as per diagram above) are not there. Ive unscrewed the plumbing underneath so i could push the popup out. It looks as though its the seal on the stoppers. I think i’m on the right track.

    Reply
  6. My pop up tub stopper was stuck and I finally was able to push it up by unscrewing and removing the lever and the lift linkage with the spring, and placing an unwinded straight wire coat hanger inside instead. Then by pushing the rocker linkage(waste arm) as hard as I could with the help of the hanger the stopper was able to come out. For the wire coat hanger not to bend easly I had to tape it first. Hope it helps!!!!
    https://uploads.disquscdn.com/images/9f7d00af8211616ed1603c8393a93bca7488d4fd6f14d33fb6ca6abba38fbdf1.jpg

    Reply

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