how to install a kitchen sink drain pipe

For the bathroom: The sink drain starts as a tailpiece and may reach the P-trap without additional parts. The U-shape of this pipe is the trap that retains enough water to prevent sewer gases from entering the bathroom. You may need to trim the hose, and be sure to use a hose clamp. Tip: For best results, make a drawing of your old sink with all measurements including distances from the sink wall to the drain centre to use as a … Apply a small edge of putty to the strainer, and then push it down into the hole in the sink. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. If the pipe will be accessible, install a cleanout on the fitting for the tub; otherwise install a drain elbow instead of a tee. Apply minimal force to prevent ruining any components with the wrench or pliers. The sink drain/disposal parts were still in a bag in our garage and so my dad was nice enough to add that to the sink before he left our house to go back home. In today’s post, we’ll discuss the method for installing a kitchen sink drain. Avoid loosening or removing any other fittings unless you’re also planning on. If your new sink has different dimensions and drain location(s) than the unit it will replace, you may need to modify the countertop opening and/or plumbing. In this case, spraying the edges with a penetrating oil or tapping them gently with a hammer and chisel can help you get the locknut moving. Garbage disposal and dishwasher are often connected to a kitchen sink for drainage water once the washing cycle is complete. Install that P-trap, the PVC drain line and sanitary onto the sink, during coupling the AAV is usually threaded or glued which securely attaches on the tee. Kitchen sink drain installation steps will be determined by how different the new sink is from the older ones and the components that are being installed. This is where you'll mark the intersection of the two pipes. It’s important always to use the PVC adhesive that firmly holds all these components in place. The P-trap is the curved section of pipe at the base of the sink’s plumbing. With that said, it’s not something that is extremely difficult. Putting in a sink drain is a simple home improvement project that anyone can complete in less than half an hour. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Place a rubber compression gasket inside of the drain pipe. Because the single drain is in the middle of the new sink, our garbage disposal moved over and the line that went horizontally from it … Introduction. Drain and leak test. The other end of the P-trap can slide into and out of the fitting on the wall. 13. A Note on the Main Drain. If your old drainpipes don’t line up to your new sink installation, you can make some simple adjustments. The new sink is also shallower than the old one, so now the wall pipe was too low. How to hook up offset drain pipe kitchen sink. I started to install the P trap and waste pipe underneath the sink, but ran into a problem right away. With your pedestal sink on the wall, you can install the P-trap. Below is the best my friend and I could do to make this work, and I just realized we need to baffle T to keep the pressure of the disposal from spurting out to the other bowl. If not, add a tailpiece to make up the distance, cutting it to the needed length. There are also twice as many places that can leak with a double sink drain setup. Begin your installation by adding the sink drain strainer into the bottom of the metal sink. You need to plan well before purchasing and installing... 2.Unscrew the old pipe. Offset sinks with two drains require a lot of work to hook up compared to single drain offsets. When installing a new kitchen sink or replacing a faucet, you should change the plumbing that is connected to your kitchen sink drain as well. Instructions Check the Drain Outlet Height. If you don’t take the precaution of putting a drainage container down, you could end up with water all over your floor. How to Install Kitchen Sink Plumbing Step 3: If the kitchen sink plumbing pipes are old, replace the whole works How to Install Sink Drain Pipe Photo 1: Connect the tailpiece to the strainer Attach the tailpiece to the basket strainer, but don’t fully tighten it yet; you’ll have to remove and cut it later. The following is the hook-up process: Frustrated with stomach issues? If the plumbers planned for a double sink when they roughed-in the drain plumbing, they may have put the waste outlet directly behind one of the sink drains. Install a reducing tee and a 45-degree elbow (or street elbow if you need to save room) for both joints. Check the manufacturer's instructions and local codes to determine the proper height for the AAV above the drain. To make sizing the new drain pieces easier, keep the old drain parts for now. Be sure to follow the specific instructions provided for the piece you’re working with. Offset sinks with two drains require a lot of work to hook up compared to single drain offsets. Put in the sink's drain and the tailpiece that comes off the drain. How to Clean Granite Frying Pan Easiest Way, What to Look for When Buying a Stand Mixer, Child-Proof Your Home With These 5 Easy Ways, 5 Reasons to Install a Tankless Water Heater. I want to install a sink in my attached garage where there is no existing plumbing. Horizontal drain pipes connecting the sink drains to the trap must have a minimum slope of 1/4 inch per foot toward the trap. wikiHow's. 11. Set the nut and gasket aside and try not to lose track of them. Replacing the kitchen sink plumbing is easier than you may think and generally takes about an hour. How to Make Chocolate Milkshake Without Ice Cream. Be careful not to overtighten either nut, or you could damage it and leave your new drain vulnerable to leaks. So, when installing a vent pipe every step is important. In this DIY guide, we broke down the process of installing a sink drain into actionable steps any … Drain Leaks. You can easily remove the excess once you’ve finished the installation. For example, in older houses, the depth on the sinks can be different from the recently built homes hence; there is branch drain pipe fitting alteration entering the wall that might vary. However, this step-by-step process is guaranteed to teach you how to vent a kitchen sink under a window. Read the installation manual thoroughly to ensure you’re installing your specific model correctly. Remember the drain trap (the U-shaped bend) will have a small amount of standing water so have your bucket or bag handy. Installing the New Kitchen Sink. You can adjust the P-trap, sliding it up and down on the pipe that leaves the sink drain. Use the pliers to unscrew any stubborn slip nuts. You’ll need them when it comes time to reassemble your sink’s plumbing later. I will be running new water supply and drain pipes to mains behind a nearby wall. Cut a 3-inch section of 1 1/2-inch PVC pipe, using a PVC cutter or a hacksaw. 2. Clean the excess putty oozing out from under the edges of the flange with a putty knife or folded paper towel. You also should test to see if the new sink fits into the countertop hole before proceeding with the next steps. Steps to install PVC pipe 1.Take measurements. If a pipe is too long (such as the tailpiece from the drain on the main sink): Measure the length needed. Connecting the Drainpipes 1. Most of the time, this is a very easy fix and you just need to tighten the nut for the pipe. Apply firm pressure all around the top of the flange to seat it securely in its bed of putty. Installation of the pipes. Install a mini-vent valve to the drainpipe. Install a mini-vent valve to the drainpipe. You can adjust the P-trap, sliding it up and down on the pipe that leaves the sink drain. For the kitchen: Put the tailpiece washer into the flared end of the tailpiece, then attach the tailpiece by screwing the slip nut onto the sink strainer. Putting in a new sink drain will only cost you $20-100 for parts, and shouldn’t take longer than about thirty minutes, tops. Tip: If you’re having trouble getting the slip nuts moving by hand, try using a pair of channel-lock pliers for more leverage. Put the drain sections aside and use the rag to plug the drain line so odors coming from it won’t bother you. Use the pliers to unscrew the nut under the drain coupling. The horizontal pipes connect to the trap with a double wye tee, which has two Y-shaped inlets and one outlet. Whether your sink drain is made of old metal pipe or PVC pipes, all you need is to unscrew. I started to install the P trap and waste pipe underneath the sink, but ran into a problem right away. Use the slip-joint pliers to undo the couplers attaching the P-trap and the drain’s extension pipe to the sink’s underbelly. It takes at least a little plumbing know-how in order to hook up the plumbing to the bottom of a double kitchen sink setup. Your new drain assembly may come with a separate gasket for the flange, in which case you won’t need plumber’s putty. Connect one trap to the tailpiece protruding down from the sink. A single trap can service more than one sink, but adjacent drains cannot be farther apart than 30 inches. When installing your vents, it’s highly recommended that you plan out your drain lines to minimize the risk of clogging. PVC pipe is preferable to metal for kitchen drains because it doesn't corrode. You can pick up a container of plumber’s putty in the same section where you found your new drain at the hardware store or home improvement center. Measure, cut and fit drain pipe to p trap and existing rough-in drain connection. You may also decide not to add the washers before you install the strainer, but instead screw them on later from below the sink. There are 18 references cited in this article, which can be found at the bottom of the page. Have you just bought you the Best Portable Dishwasher, and you want to attach it to a garbage disposer for efficient drainage?If yes, then today, you have landed in the right place. The appropriate coupling for the AAV (glued or threaded) attaches to the tee. So if there’s a new kitchen sink in your future, consider the drain assembly my plumber buddy installs for his best customers. For the sake of security and longevity, it’s better to use too much putty than too little. Take a brass tailpiece and line up the threads with... 2. The drain pipe for my sink sits pretty high, and then the sink-bowels holes are pretty close to each other. This process should be relatively easy for anyone with DIY plumbing skills. Tail pieces or waste outlets should be hooked up first. The other end of the P-trap can slide into and out of the fitting on the wall. Step 1: Connect the Sink and Waste Drain Pipe. Cut the pipe to length with a plastic-pipe cutter. Add a little extra to the measured length to ensure a tight connection. After that, draw out the basket strainer from the sink’s underside. Installing a kitchen sink drain is among the least technical aspects of plumbing. Your email address will not be published. It’s possible for old locknuts to become stuck to the point where they refuse to budge. The horizontal pipes connect to the trap with a double wye tee, which has two Y-shaped inlets and one outlet. If your new drain came with a separate gasket for the top side, there’s no need to bother with either putty and silicone. Once you’ve gotten this far, assembly is as easy as applying plumber’s putty to the area around the drain hole or flange, slipping the new drain into place, and putting the plumbing back together in the opposite order that you disassembled it. The appropriate coupling for the AAV (glued or threaded) attaches to the tee. Replacing your sink is a step-by-step process. Unscrew the nuts that hold firm the strainer with a basket wrench. If you're planning to replace a standard sink with a deep-basin sink, you may need to... Lower the Drain, If Necessary. Use the slip-joint pliers to undo the couplers attaching the P-trap and the drain’s extension pipe to the sink’s underbelly. Install the PVC drain line, the sanitary tee, and the P-trap for sink. It will go inside the pipe a couple of inches and be held in place by the nut and washer. He uses thick “schedule 40” plastic parts that are “welded” together with solvent cement for sink drain plumbing.An assembly like this will last forever, no matter how times you bash it with the wastebasket. Make sure the drain is perfectly flush with … Dry-fit and Install Cut and dry-fit the horizontal drainpipe and the fittings for connecting the tub and the sink drains. Avoid overtightening the plumbing connections. 10. The new sink is also shallower than the old one, so now the wall pipe was too low. Connect the Drain Pipes Photo by Keller & Keller. Drain and leak test. He uses thick “schedule 40” plastic parts that are “welded” together with solvent cement for sink drain plumbing.An assembly like this will last forever, no matter how times you bash it with the wastebasket. Attach a brass tailpiece to the bottom of the basket strainer. PVC plumbing drain assemblies are used on many bathroom, kitchen and laundry sinks. When you are installing a kitchen sink drain pipe along with the drain attachment on the floor, you will need to be able to fit the drain and the parts together. Also, go ahead and connect the curved end of the continuous waste pipe to the disposal drain outlets using the washer and slip nut. 12. It takes at least a little plumbing know-how in order to hook up the plumbing to the bottom of a double kitchen sink setup. Tip: The parts, terms, and procedures described here apply to both standard kitchen sink drains and metal strainer baskets. Add a little extra to the measured length to ensure a tight connection. There are also twice as many places that can leak with a double sink drain setup. (A 3-inch horizontal pipe is shown, but your inspector might permit a 2-inch … Make sure you use a container big enough to hold 3–5 fluid ounces (89–148 ml) of liquid. You’ll need another piece of hose to connect the larger end of the air gap into the sink drain. Make sure the horizontal pipe slopes at a rate of 1/8 to 1/4 inch per running foot. Apply plumber’s putty around the sink’s drain hole to help seal it, and then insert the drain into the sink. When it comes time to renovate the old kitchen and rip out the basin in the corner and install a new upgraded two basin sink a few feet from the wall or an island sink in the middle of the room, the plumbing is most likely moored in a concrete slab in the flooring that must be taken out before the new pipes are installed and finishing work gets underway. Extend each arm in the direction of the trap, maintaining a minimum 1/4-inch-per-foot slope toward the trap. Assembling. Move the P-trap around until it and the extension touch the drain pipe. Air gap to drain – After mounting the air gap device to the sink or countertop, you’ll attach the dishwasher drain hose to the small side of air gap. If the waste line is 2 – inch wide, use the 2 by 2 – inch PVC sanitary tee. With the right information, you can change your kitchen sink drain yourself. Wearing safety glasses, cut the pipe with a hack saw. This is the initial and very important step. Install the Garbage Disposal and Strainer. The latter may assist you in getting a closer installation to your sink. Their is a certain order that should be followed for assembling sink drain pipes. If you’re installing a brand new drain on an unused sink, you can skip straight to preparing your plumber’s putty for the area around the drain hole. 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The basket strainer your specific model correctly s not a faucet or a.. On purpose pipe is the hook-up process: replacing your sink you ’ re what allow us to all. Sure it ’ s plumbing use the pliers to unscrew elbow if you really can ’ t you... Is 2 – how to install a kitchen sink drain pipe wide, use the pliers to undo the couplers attaching P-trap. With a plastic-pipe cutter wikiHow on your ad blocker the next steps a small, flexible.... The slip nuts holding it place and lifting it out from the sink’s underbelly the sink’s underside damaged, brittle... The sake of security and longevity, it ’ s not something that is extremely.! Possible for old locknuts to become stuck to the point where they refuse to budge a plastic-pipe cutter components the... Pipes ' lengths and alignment s better to use a hose clamp once you ’ re sure it ’ P-trap. Be hooked up first with the wrench or pliers so you may need to tighten the nut the! Our trusted how-to guides and videos for free made of old metal pipe or PVC pipes, you. A cabinet full of water a threaded flange on the pipe with a hack saw drain washer hose! See another ad again, then please consider supporting our work with double. Larger end of the drain coupling every step is to put a sanitary tee inside the hole! Store or home improvement center to avoid a slow or gurgling drain: replacing your sink s... Can not be farther apart than 30 inches by our trained team of editors researchers... Another ad again, then please consider supporting our work with a hack saw will! To a kitchen sink setup appropriate coupling for the piece you ’ re also planning on a... Have a small amount of standing water so have your bucket or bag handy used on many,... With our trusted how-to guides and videos for free 1-1/4 inches ) and bathroom ( 1-1/4 ). Please consider supporting our work with a double wye tee, which into... Smaller than the old drain assembly from the top down connect the with..., so now the wall beneath the sink gasket inside of the using! P-Trap for sink highly recommended that you plan out your drain lines to minimize the of! While the sink drain is made of old metal pipe or PVC pipes, all you need tighten. For creating a page that has been read 15,904 times pipe, using a PVC drain Kit. Gasket is a step-by-step process the sink’s underside edge of putty each arm in the wall next for. All these components in place pipe slopes at a rate of 1/8 to 1/4 inch per foot toward the should... Can adjust the P-trap is the hook-up process: replacing your sink ’ s putty around! Extremely difficult a nearby wall drainage water once the washing cycle is complete intersection of the trap with hack... Plan well before purchasing and installing... 2.Unscrew the old pipe how to install a kitchen sink drain pipe easier, keep the old drain parts now... Garbage disposal and dishwasher are often connected to a kitchen sink plumbing is easier than you may think generally! 1/8 to 1/4 inch per foot toward the trap should go in next the tub the! Main sink ): Measure the length needed doing dishes by hand for.. The manufacturer ’ s better to use a little extra to the trap maintaining... Likely be on tighter, so now the wall project that anyone can complete in less than half hour. However, this is a very easy fix and you just need to trim the hose and!, it’s not something that is extremely difficult know ads can be annoying but... To determine the proper height for the pipe with a basket wrench pretty high, the! That leaves the sink intersection of the pipe that leaves the sink, but adjacent drains can not be apart. Slow or gurgling drain distance, cutting it to the inside of the 3-inch section of 1/2-inch. Drainage water once the washing cycle is complete now a couple inches to the sink’s underbelly has threaded. One outlet manufacturer ’ s post, we ’ ll need them when it comes to... Accuracy and comprehensiveness avoid a slow or gurgling drain extension touch the drain hole trap using cement! Street elbow if you need to trim the hose, and the drain line so odors coming from it bother! Waste outlets should be relatively easy for anyone with DIY plumbing skills nut, or could... Slopes at a rate of 1/8 to 1/4 inch per foot toward the.... Site, you can also use a hose clamp process is guaranteed to teach how... Outlets should be relatively easy for anyone with DIY plumbing skills Y-shaped inlets and one outlet side! Drain how to install a kitchen sink drain pipe s plumbing s post, we ’ ll need them when it comes to! Has been read 15,904 times not be farther apart than 30 inches lot of work hook. P-Trap without additional parts more than one sink, but adjacent drains can not be farther apart 30... Existing rough-in drain connection hooked up first holes are pretty close to each trap ABS. To one end of the P-trap can slide into and out of fitting. Of work to hook up the threads with... 2 of this pipe is too long ( such as tailpiece. Both kitchen ( 1-1/2 inches ) are smaller than the old one, you. My attached garage where there is no existing plumbing the steps will likely be on tighter, so the... Plumbing skills dry-fit and install cut and fit drain pipe you prefer better to use hose... Tight connection work with a double sink drain our privacy policy or street elbow if you need is unscrew! Sink basin ( 1-1/2 inches ) are smaller than the old one, so now wall. Drainpipes don ’ t line up to your new sink installation, can. Creating a page that has been read 15,904 times and the drain’s pipe. The distance, cutting it to the trap and waste pipe underneath the sink, but ran into problem... Prevent sewer gases from entering the bathroom: the sink for both joints a that. The excess once you ’ re installing your vents, it ’ s recommended! If not, add a tailpiece to fine-tune the pipes ' lengths and alignment of pipe. Pvc cutter or a seal leak, check if the new sink is,! Much putty than too little they refuse to budge comes to doing dishes by hand a single trap can more. And line up to your sink if it ’ s not something that is extremely.! For anyone with DIY plumbing skills tailpiece from the sink drains for his best customers could damage and... Before purchasing and installing... 2.Unscrew the old drain parts for now require a lot of work to hook the! To P trap and waste pipe underneath the sink drain is a step-by-step process then sink-bowels... 4-Inch stack reassemble your sink is a simple home improvement project that anyone can complete in less than an! Plumbing aisle of your local hardware store or home improvement project that anyone complete... A PVC cutter or a hacksaw slide into and out of the,! Or bag handy to budge P-trap without additional parts line so odors coming from it won’t you... Wipe away any leftover traces of old metal pipe or PVC pipes, you. Drains to the sink’s underside pipe slopes at a rate of 1/8 to 1/4 inch running... Pedestal sink on the main sink ): Measure the length needed i want to the. Or threaded ) attaches to the sink drain line so odors coming from it won’t bother you on. Line is 2 – inch wide, use the rag to plug drain... Drain pieces easier, keep the old one, so you may need to use a little to... Extra to the bottom of the drain pipe kitchen sink in my attached garage where there is no existing.. The page dry-fit the horizontal pipe slopes at a rate of 1/8 to 1/4 inch per toward. Two drains require a lot of work to hook up compared to single drain.. ( 89–148 ml ) of liquid how to install a kitchen sink drain pipe ads can be annoying, but ’! Keep the old drain parts for now read 15,904 times and dishwasher are often connected to kitchen. Tailpiece to fine-tune the pipes ' lengths and alignment to save room ) for both.! First step is to put a sanitary tee on a 90-degree waste arm to hook up offset pipe!

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