Why does my pop up drain leak?

Pop-up drains sometimes spring a leak at the point where the pivot rod enters the drain pipe. Leaking can start if there is loosening or cracking of the compression nut that holds the pivot rod in the drain pipe. If a leak is traced to this nut, it can usually be stopped by tightening the nut.Click to see full answer. Besides, how do you stop a pop up drain from leaking?It usually is not much water, only a small drip, drip, drip. To prevent this from happening, pack plumbers putty on the threads underneath the thick rubber washer. Loosen the nut, slide the rubber washer down, and pack plumbers putty on the threads between the washer and the bottom of the sink. how do I fix a leaky wall drain? How to Fix a Broken Pipe Inside a Wall Cut out sections of the damaged drywall with a saw. Wrap a sheet around the pipe and move around until it gets wet. Place a container under the broken pipe. Cut the pipe below the leak. Dry the pipe. Cut above the leak with a pipe cutter again. Clean the pipe. Mount a copper repair sleeve. Moreover, why is my new sink drain leaking? If the drain pipe under your bathroom sink is leaking, you may need to simply re-tighten the nut. If no Plumbers Putty was used when installing the drain outlet flange in the sink, this is another reason it may be leaking. Check to see if you are able to tighten the nut with another half turn or so and check for leaks.How do you fix a leak under the sink?If it’s the sink drain that’s leaking, unscrewing it and repacking it with plumber’s putty will usually fix the problem. Although you usually notice faucet leaks above the sink, sometimes water can flow down the back of the faucet and drip underneath the sink without being visible.