Step 5 –Dry it out. Set a bucket under the P-trap assembly under the sink. Sink disconnect pipes place end caps to water pipes Disconnect out let pipe cut of to desired place.cap of pipe. Loosen this nut to separate them. The metal drain pipe that goes into the wall is the pipe that started leaking. For tips on how to install a new kitchen sink drain, read on! If the bell housing refuses to pull free easily, wedge a flat head screwdriver into the gasket sandwiched between the bell and the underside of the sink. Drill an oversized hole (2 1/2") in the side of the new cabinet so that you can reach the glue dawber in and fit the coupling on after the cabinet has been installed. The water supply pipe is connected to the dishwasher with one metal nut. Go into the crawlspace, if the sink is at ground level, and find the point at which the pipe passes through the bottom plate of the wall. We use cookies to make wikiHow great. It seem where it goes in behind the wall into the plumbing there was some type of gasket as pieces of it fell out when I removed the pipe.. Sand and flux the new wall piece, flux the joint too. Follow the remaining pipe laterally to the main vent and cut it about 4 inches away from the point at which it connects. I made sure the pipe was drained of water. If the entire strainer is spinning when you try to loosen the locknut, use pliers to pinch (or pliers handles and a screwdriver to hold) the strainer still from topside. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. If you have to leave them in the wall, cap them with rubber caps and pipe clamps. I needed a longer one. If you wish, you may also be able to disconnect the drain pipe at the top of the trap (the U-shaped bend) in order to give yourself more room to work with. This spot was too tight for the pipe cutter and the hacksaw. All tip submissions are carefully reviewed before being published, This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. The clog is definitely after the U pipe as water can drain into the bucket with no issues. You should hear a gurgling sound when the clog is released. Bathroom sink wall pipe drain pipe [ 2 Answers ] My house was built in early 70's.. No plastic.. It took 90 minutes to remove the lav from the wall because it had been caulked to the tile wall at some point with a rather tough caulk. Remove the Drain Trap . After removing the pipe. The pipe was too close to the wall for me to be able to turn it around the pipe. After this, carefully lift up the sink and slide the pedestal out. The sink bowl is usually attached on the wall mounted on a bracket and by simply lifting up on the sink it will detach from the wall. If you have trouble squeezing the pliers, you can also insert the handles of the pliers into the openings of the strainer grate, then stick a screwdriver between the handles and hold it steady to immobilize the sink strainer. Include your email address to get a message when this question is answered. After tugging, cutting, etc.. the pipe old pipe, meaning the pipe that was originally attached to the trap, is now flush with the wall. Cap the part that is still connected to the vent. Luckily, with the right tools and some elbow grease, you can remove all but the most stubborn rusted-on sink drains yourself — and even install a new one without calling a plumber! Scrape away any dried putty or other gunk from the rim of the sink (both above and below) if you intend to install a new strainer. You can buy plumber’s putty anywhere that sells plumbing supplies. Go into the crawlspace, if the sink is at ground level, and find the point at which the pipe passes through the bottom plate of the wall. If the nut is very tight, hold the strainer in place from above with the pliers while you loosen it. You may be able to hold the pliers with one hand and loosen the nut with the other, or you may need to recruit a helper. wikiHow is where trusted research and expert knowledge come together. You may have to make two cuts to separate the tee holding the stub-out from the waste and vent pipes. Once the panel is removed, locate the power supply (a white or yellow cord) (Image 1), the water supply (steel or copper pipe) (Image 2) and the drain hose (Image 3). First we disassembled the faucet and removed it from the basin. Once the old drain is out, the next task is to simply replace it with a new one. Heat the joint, twist wall piece in place, apply solder. As a landscape builder, he helped establish two gardening companies. If you have a garbage disposal unit, unscrew the connections to the drainpipe and remove the drain pipe and unit. Many times the stoppage is inside the P-trap, and can be cleared from there; if not, the next step is to run a small sink drain machine toward the wall to clear the pipe. Cut out a rectangular piece of drywall -- using a utility knife and a drywall saw -- that extends sideways at least as far as these studs and from about a foot above the stub-out to the floor. 60's) bathroom sink and faucet, the pipe going into the wall would not come out. By signing up you are agreeing to receive emails according to our privacy policy. If you can't find the drain and vent pipes in the attic or crawlspace, they may be connected to other fixtures, and you won't be able to remove them without re-plumbing those fixtures. Remove as much of the standing water as possible from the sink, whether with a pan or wet vac. Once a pipe has leaked, there’s a good chance mold will grow unnoticed within the wall until the problem requires expert removal. How to Remove Mold on Walls Steps to remove mold from painted or unpainted walls, drywall, cement, and ceilings using homemade mold killing sprays. If the locknut is completely rusted in place and simply will not come off, you can use the cutting wheel attachment on a rotary multi-tool to slice through the locknut, then (if needed) a chisel and mallet to split it apart. I dismantled all the plastic drain pipes to make room to work on the leaking metal pipe that appears to be threaded into the wall. Blasting your 1.5″ pipe with 90 pounds of air pressure is a good way to release a clog. I'm putting in a new sink and had to remove the wall pipe that goes into the wall.. Next, you will need to disconnect the water supply from the dishwasher. The drain pipe corroded a couple feet down the line and is leaking. You’ll find either a PVC or metal coupling nut connecting these two components beneath your sink. If the screws are hard to turn, then spray some WD40 onto them and wait 5 minutes. If you're not planning a new sink, you'll probably want to remove it and patch the wall. A metal nut may also require the use of a pipe wrench or large adjustable wrench. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Loosen the coupling nut that connects the strainer to the drain pipe. Remove the waste pipe. I needed a longer one. Also, you need to cut the pipe completely and remove the other part from the wall. 3 Loosen the compression fitting that connects the trap to the sink drain; remove the entire PVC assembly. Pry the bell housing free and pop it off. First, remove the bottle trap by unscrewing the two screw joints between the sink and the trap, and between the trap and the horizontal pipe to the wall (shown by 2 red arrows above). % of people told us that this article helped them. Using pliers, grab the pipe, twist it as you are heating it with the torch. References. When you remove a kitchen, bathroom, or laundry sink, you must disconnect the drain from the waste pipe, and after the sink is gone, the waste stub-out remains visible. Unscrew sink lift away. I have a metal pipe extension pushed into a brass nipple fitting at the wall. Thanks to all authors for creating a page that has been read 73,663 times. Remove the cutoff pipe. If the strainer won’t break free, tap it from the underside with a mallet until it pops loose. wikiHow's. To remove the pedestal sink to gain access behind it, remove the caulk under the sink bowl and the caulk near the bottom stand at the floor. The first thing to do is loosen the coupling nut connecting the strainer to the drain pipe, which you can usually do by hand. However, before you start, insert plugs in all the other drains in your house, as they may act as vents for the clogged bathroom sink. I'd like to replace the entire run from the sink to the sewer with PVC. This metal pipe was encased in duct tape so I started pealing the tape off to see what part of the pipe was leaking. But you may also want to consider calling a plumber at this point. Make sure you have cleaned away any old putty from the sink surface with a plastic putty knife. For a bell washer strainer, place the bell housing over the strainer, then feed the provided nut onto the threads at the bottom of the strainer. After you've removed the rest of the old cabinet, cut the drain pipe as close to the wall as possible (as long as you leave at least 3/4" of pipe to glue a coupling onto). 5. Remove the sink from the wall; Installing the New Wall Mounted Sink. If you have to bash too hard, though, you may damage the sink itself, so consider calling a plumber if necessary. Remove the sink from its wall-mounting bracket by lifting evenly upward approximately 3 inches from both sides of the sink near the wall. Remove any clamps holding the stub-out with a screwdriver or hammer, and pull out the stub-out. The P-trap will be full of wastewater, so be careful to empty it into the bucket. This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. This way, you are able to remove the rest of the pipe where the leakage is located. So I put a metal cutting blade on my jigsaw. To remove a kitchen sink drain, all you’ll need is a wrench, a screwdriver, and a pair of needle-nosed pliers. Step 9 Slide the pedestal back in place under the basin. There are also locknut strainers with screw attachments, in which 3 or 4 screws are used to help hold the locknut tight against the underside of the sink. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/57\/Remove-a-Kitchen-Sink-Drain-Step-1.jpg\/v4-460px-Remove-a-Kitchen-Sink-Drain-Step-1.jpg","bigUrl":"\/images\/thumb\/5\/57\/Remove-a-Kitchen-Sink-Drain-Step-1.jpg\/aid9425762-v4-728px-Remove-a-Kitchen-Sink-Drain-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"