Usually 18 or 18.5 inches; others are 16 inches. Slide the nut up along the tailpiece and fit the washer around the end of the tailpiece. Once you’ve installed the hot, cold, and drain pipes, you can connect the sink, toilet, and tub faucet to them and secure the fixtures to the floor or wall. Drop the strainer into the hole in the bottom of the sink with the tailpiece extending down. The third step on how to install a bathroom vanity plumbing is to level the new vanity against the wall. Cut one hole for each valve emerging from the floor. Your new bathroom could have exceeded the amount of feet your system is capable of handling. If that does not work, you can use a closet auger, which has a coil at the end that goes into the toilet, and a handle at the other end which makes the coil go deeper into the pipes. Before doing any work on your plumbing, you will need to turn off the bathroom water lines. A vanity could make your bathroom renovation. Could be many reasons. Measure the distance from the bottom of the vanity to the center of the pipe opening with a tape measure. 3/4 inch cold water line to water heater and 3/4 out of water heater for hot water and 1/2 for 3 fixtures. You can do it! Then, you'll need to drill holes in the appropriate places so you can run pipes to the fixtures. Tighten the compression couplings on the trap and the waste line by hand to secure both ends of the pipe. Follow the steps below to remove a bathroom vanity and install a new one. For tips on how to fix common problems with bathroom drains, read on! Read the tub installation manual. There are 11 references cited in this article, which can be found at the bottom of the page. Stick a hanger or a wire through the trap to see if you can pull anything out. Slide the nut down and screw it to the trap, tightening it as much as you can by hand. If the distance to the tailpiece is smaller, cut the tailpiece level with the pipe opening with a hacksaw. You want to do the prep work before you turn off the water, to minimize your "dry" time. The simplest way to update your bathroom is to install a new vanity. The inspector made us bring the drain for the bathroom vanity through our Mark where the floor bolt should go and drill a hole through the sink stand and fasten it to floor using a nut and bolt. Last Updated: March 6, 2020 How to Install a Wall-hung Vanity: We bought a wall-hung vanity because we liked the look (the extra visible floor space makes the bathroom appear a little bigger) and because you can easily customize the height and store stuff in baskets hidden underneath. Personalized Constellation Vanity Tray Add constellation dots from the zodiac onto simple plates and turn them into modern, personalized vanity trays for you or a friend. 1/2 inch cpvc, pex, or copper pipe can do toilet, sink, tub (3 fixtures) from the cut offs all the way to tub or shower valve and washing machines with 1/2 inch pipe, but the trunk water line should be 3/4 inch. Press into the end of the timber with your middle finger and hold the pencil in position with your index finger pressing down on the timber face. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Collect all of your supplies, measure to make sure your vanity will float comfortably in … However, they require moun… The job is easier than doing the rough-in plumbing that produced the stub-out, but it still calls for care. For your bathroom, you will need multiple sizes of drain lines. After you attach the pipe to the toilet drain, the pipe should slope downwards toward the main drain line. It can as long as there is no backup like tree limbs or roots to prevent the waist from going down the drain. Set the P-trap opening against the washer and push up until the trap outlet is level with the waste pipe. If city water, 1" or 3/4 PVC, pex, or copper pipe is used. Connect the sink to the hot and cold water lines. Install the Backsplash (as Needed) If your vanity came with a separate backsplash, apply a bead of silicone caulk in a serpentine pattern to the back of the backsplash. Cut the hole in the back of your vanity a quarter inch larger than the pipe to prevent cracking, bumping and noises. We'll help you decide what bathroom plumbing projects you can do on your own, and which ones might require some help! For tips on how to fix common problems with bathroom drains, read on! Add 1 1/2″ around the plumbing to make sure your drawer will be well away from the plumbing. Remove the strainer for the floor drain and push the hose into it as far down as it will go. Bathroom vanities are light and easy to maneuver, and there's no complex plumbing you can't do yourself. Use the thinner washer if the trap and tailpiece have the same diameters. To finish plumbing the sink drain, you have to connect it to that pipe via a P-trap. Mark the outline of the tub on the floor so that you can estimate where the drain will be. From well pump to pressure tank 1" PVC, pex, or copper pipe. The pipe should be about 2 inches longer than the distance you measured. You first need to get your high school diploma. Drop the strainer into the hole in the bottom of the sink with the tailpiece extending down. References. Do all the cutting and drilling necessary. Thanks to all authors for creating a page that has been read 434,065 times. This project will likely take two to four days to complete so make sure to plan accordingly and pick a time where you can install the vanity without needing the restroom for daily use. Or it can make available one sink for grownups and one for children, or … Have someone hold the strainer steady with a screwdriver while you tighten the nut with adjustable pliers. wikiHow is where trusted research and expert knowledge come together. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Slide the nut up and screw it to the strainer. Turn off the water and disconnect the supply lines. Measure the distance between the trap outlet and the waste pipe, and cut a piece of 1 1/2- or 1 1/4-inch PVC pipe to join them, depending on the diameter of the trap. Locate and carefully mark all cut points and drill points. To create this article, 23 people, some anonymous, worked to edit and improve it over time. Set the sink onto the stand and glue an adapter with threads to the drain pipe. For a complete update, replace the sink, countertop and faucet the same time as the vanity cabinet. Unscrew the nut from the inlet of the P-trap, and remove it and the plastic washer inside. Sure, if you have the room to fit it. Mark the height of the vanity in three different locations as well as the width. Run the coil for the auger through the pipe to unclog the drain. You will need to run 5 water lines into a standard bathroom: a hot and cold line for both the bathtub/shower and the sink, and a cold water line for the toilet. Once you have it lined up, glue the waste line to connect to the tub's drain. The first step when installing a bathroom vanity is to cut holes (or a section) out of the cabinet back for the pipes to fit through. Find out how you can install it yourself. New doors and windows are investments that need to stand the test of time and harmonize with your home’s architectural elements To do so, glue the closet flange into place so that the slots line up with the toilet's bolt holes. Depends on tub or shower unit. If the shower has single-handle control, then buy a new cartridge. Follow these 7 steps for choosing the bathroom vanity that will be a winner. You may want to sit on the toilet and rock back and forth a bit to get it on correctly. You will then need to get your vocational training, this is quite an important step. This last step is somewhat optional, but the majority of states require you to have a plumber's license. The sink drain line will be 1.5 inches (3.81 cm) and the bathtub will use a 2 inch (5.08 cm) drain line. From there, you either need a new O-ring or cartridge depending on the faucet type. By the time you install a vanity cabinet and drop the sink into it, the rough-in plumbing for the drain should be done. If the distance is greater, you may have to replace the tailpiece with a longer one. Your semi-last step would be to get licensed. You already know the lav’s individual vent is sized at 1.5 inches (1.25” code minimum). Continue turning it on and off until the water flows freely through it. Debris in old pipes could have loosened in an area and clogged all the aerator on all faucets and shower heads, resulting in needing to all be cleaned (this is most likely the reason; if the aerator wasn't removed upon turning the water back on they get clogged). Give your bathroom a dramatic makeover in one long weekend by replacing the vanity cabinet, sink and faucets. Or it could be its downfall. Use the thicker of the two washers that come with a 1 1/2-inch P-trap if the tailpiece is 1 1/4 inches in diameter. The drain line for the toilet should be either a 3 inch (7.62 cm) or 4 inch (10.16 cm) line. Just in case, you could put a cap on the opening of the sewer hole for the toilet. Check if the bowl is level, and then tighten the nuts and the washers of the closet bolts. How far from both walls should I put the drain pipe for the tub with a cement floor? The cold water line runs right against a built in cabinet which I would like to keep in place and the drain for the sink is also the drain for the bathtub in the upstairs bathroom. If I have a wall mounted toilet and a raised tub with a drain that is inches above the floor and I want to replace the tub with a floor level shower for a wheelchair, do I need to replace the toilet? For the bathtub drain, unscrew the overflow plate and lift it out. I called a few places for a Measure again to make sure your markings are accurate. This article has been viewed 434,065 times. You can get the clearance to do this by swiveling the trap. How to Plumb a Bathroom: 11 Steps (with Pictures) - wikiHow Connect the Plumbing Connect the water supply lines to the faucet, and connect the sink drain to the drain trap and the branch drain, following the manufacturer's instructions. How do I become a plumber? Stuff rags around the hose at the drain entrance to close up the hole. What equipment do I need? If your measurements are off or you don't tighten connections properly, the pipes will leak. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/60\/Plumb-a-Bathroom-Step-1-Version-4.jpg\/v4-460px-Plumb-a-Bathroom-Step-1-Version-4.jpg","bigUrl":"\/images\/thumb\/6\/60\/Plumb-a-Bathroom-Step-1-Version-4.jpg\/aid1436786-v4-728px-Plumb-a-Bathroom-Step-1-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

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\n<\/p><\/div>"}. Pack plumbers putty around the underside of the lip of the strainer. Learn how to install one at your place with this step by step guide Step 1: After a plumber has disconnected the plumbing, remove the old vanity from the wall and dislodge any remaining sealant with the scraper. We converted our 3bedroom 1-1/2 bath into a 3-2 So we had to pull permit for that. You can print this bathroom plumbing diagram out and follow along with the rest of this article. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. This article has been viewed 434,065 times. If it is, you'll see a 2-inch plastic pipe stubbing out of the wall under the sink. By replacing your existing bathroom sink and adding a beautiful new faucet, you can easily transform your space. You can tee off for kitchen sink and washing machine with 3/4 inch x 1/2 inch/1/2 inch tee. By using our site, you agree to our. It will be located at the bottom of the pipe right before it enters the wall. Do I need to hire a plumber for this? Locate the water valves and turn them off. Yes, a p-trap is needed to prevent the leakage of gas into the house and to keep the water flowing. After the sink and plumbing is installed, measure the width and depth of the plumbing, and possibly sink, for each drawer. Any fixture that has a P-trap needs to be vented. Pipes will move and expand. If your sink clogs, you can use the plunger or with an auger. A bathroom vanity provides more storage in a limited space. Start by measuring the location of the pipes on the wall both vertically (measuring up from the floor) and horizontally (measuring from a corner or a mark on the wall at the end of the cabinet). How to Plumb a Double Vanity. How To Install Bathroom Sink Drain March 7, 2020 by Rachel Lynn Leave a Comment Although plumbing projects are far from being the most glamorous part … Make sure you choose the right height for … And what would be a general cost estimate? To unclog a toilet, press a plunger against the hole and push the plunger up and down. Mark the measurements on the drawers. The filter at your PRV valve could also be clogged. By using this service, some information may be shared with YouTube. How to install bathroom plumbing – the sink Much like installing a bathtub, putting in a new sink can be an intimidating and challenging undertaking, but it is simply a matter of having the right knowledge and confidence to see the work through. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. © Copyright 2020 Hearst Communications, Inc. A new vanity is an easy bathroom makeover. As a landscape builder, he helped establish two gardening companies. The basic equipment you will need are various plumbing wrenches, a hacksaw/PVC cutter, a flashlight, locking pliers, a pipe cleaner brush/metal file, a utility knife, a tape measure, PVC Primer, and cement/glue. A new bathroom vanity can instantly update the aesthetics of your home and add value! To create this article, 23 people, some anonymous, worked to edit and improve it over time. Explore your options for bathroom vanity sets, and get ready to install a stylish and efficient vanity in your bath space. We use cookies to make wikiHow great. Attach flexible lines from the hot and cold waters line to the sink and bathtub faucets. Insert the faucet into the designated holes on the vanity top. Tip: Some vanities will come with a built-in faucet. Attach water supply lines to the new faucet with an adjustable wrench. Open the drain assembly packaging and examine the contents. I am going to rip out existing bathroom vanity and replace with another free standing one (picture below for idea). The trap creates a vacuum that needs to be relieved by a vent. You will need to figure out the placement of your bathtub or shower, sink and toilet. Screw the tailpiece into the strainer and tighten it with a pair of adjustable pliers. You could have had the lines done too small; 1/2 inch supply lines would reduce the amount of water and in turn reduce the water pressure. Pack plumbers putty around the underside of the lip of the strainer. Using sandpaper, clean the copper pipes to make them smooth, and then. Installing a bathroom vanity is a DIY-friendly project. Can the upstairs toilet be used without leakage while I'm working on the downstairs toilet? Randy, a General Contractor in Dallas, TX and Owner of http://www.RSquaredRenovations.com, demonstrates how to install the plumbing for a bathroom … Start by marking the outline of the new vanity on your wall. Why did I lose water pressure when I added a bathroom to my house? https://www.wsscwater.com/customer-service/residential-tips/locating-and-operating-your-main.html, https://www.familyhandyman.com/plumbing/plumbing-with-pex-tubing/, https://www.familyhandyman.com/plumbing/toilet-repair/how-to-replace-a-toilet/, https://www.angieslist.com/articles/how-install-bathroom-sink.htm, https://www.familyhandyman.com/bathroom/remodeling/install-an-acrylic-tub-and-tub-surround/, https://www.artofmanliness.com/articles/how-to-unclog-a-toilet/, https://www.familyhandyman.com/plumbing/toilet-repair/how-to-fix-a-clogged-toilet/, https://www.familyhandyman.com/plumbing/drain-repair/how-to-clear-clogged-sink-drains/, https://www.youtube.com/watch?v=JWZklniOo_4, http://www.hometime.com/Howto/projects/plumbing/plum_5.htm, установить сантехнику в ванной комнате и туалете, installer la tuyauterie d'une salle de bains, Leidingen en afvoeren installeren in een badkamer, consider supporting our work with a contribution to wikiHow. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Connect the water line and then caulk around the base of the bowl to secure the toilet. 1/2 supplies up to 3 fixtures on hot or cold. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. My husband and I are in the middle of remodeling our home. Slide one end of the pipe into the adapter you glued onto the waste line and the other end into the trap outlet. How To Install a Bathroom Vanity and Sink by Micheal Chotiner When I was a cabinetmaker and general contractor 30 years ago, I learned how to fabricate a bathroom vanity and countertop from scratch, and also how to install them and hook up the plumbing. Upon getting it to the right position, secure it by screwing it on the wall. How do I supply water to a new bathroom addition with a concrete foundation? Include your email address to get a message when this question is answered. Before plumbing your bathroom, you'll want to determine where the tub, sink, and toilet will be. How to Move Plumbing Lines for a Washing Machine, How to Install a Pre-Cut Granite Countertop and an Undermount Sink to a Vanity, How to Change a Toilet Drain to a Shower Drain, How to Repair Seeping PVC Pipe Drain Fittings, Woodgears.ca: Installing a New Bathroom Sink, Hammerzone: Bath Vanity and Lavatory: Part 2 -- Connecting the Plumbing, How to Finish a Bathroom Toilet Sink With Rough Plumbing Already There, How to Get Something Out of a Bathroom Sink Drain, How to Add a Dishwasher Waste Line to an Existing Sink Trap. What should I do if my shower faucet handle feels worn? All tip submissions are carefully reviewed before being published. Once you successfully secured the vanity, you can now place and sealed the countertop and all … Most likely 18 inches. Remove the handle. Compare the distance between the end of the tailpiece and the bottom of the vanity. When researching vanity ideas, look for something that is similar in size to your existing unit to avoid re-plumbing. Let’s sidestep over to the bath lav’s individual plumbing vent. You must use pliers to tighten metal P-trap connections. Run the hot and cold water lines to the shower and rough them in. If that does not work, disconnect the pipe using a wrench and clean it out using detergent. Just make one mark, in from the edge, to the depth you want to cut, and hold the tip of your pencil over it. Just connect the 2-inch shower/run drain line to the 3- or 4-inch waste line using a reduction tee. Plastic P-trap compression fittings are meant to be hand tightened, but if any of the connections leak, use adjustable pliers, carefully, to tighten them more. Pick up the vanity and place it over the holes, allowing the valves to slip through the holes. "Measure twice, cut once" may be an old saw, but it still has teeth. You should see a threaded strainer with a gasket and nut, and a tailpiece -- a short length of pipe that extends down from the drain under the sink. Besides avoiding noisy plumbing, you want to leave room for installation, as shimming Glue a plastic P-trap adapter to the drain pipe stubbed out of the wall, using plastic pipe cement. I'm installing a new bathroom on the second floor of my house with an existing rough-in. Bathroom vanity tops often come with the manufacturer’s instructions on how to correctly install the vanity. If you are building a house or remodeling, and don't want to flush money down the drain, you may want to put in a little sweat equity by learning how to install the bathroom plumbing and fixtures yourself. If the shower has dual-handle control, then remove the bad handle. If your sink has a pop-up stopper, be sure the hole in the tailpiece is facing the wall when you tighten the strainer. Do all fixtures have to be vented in a bathroom? Set the bowl over the bolts and on the flange. Discover everything you need to know about plumbing before you start your bathroom makeover. If the drain includes a pop-up stopper, there will also be a stopper lever that screws into a hole in the tailpiece. You will have to cut holes in the floor so that you can run the pipes to the fixtures, so determining the exact placement is important. I have recently removed a vanity from my bathroom and am facing an unfortunate plumbing footprint when trying to put a new vanity in place. If you flip the drawer over, be sure to flip the measurements correctly too. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Once the plumbing in your bathroom is complete, you may still run into problems in the future. You can also clean out the trap under the sink by removing the cover to the trap. Also connect the handles, stopper and drain to the top portion of the sink. Install the new cartridge and put the handle back on. Turn the water on at full force and then turn it off again. Do I need a p-trap for a stand up shower? Wrap a rag around the tailpiece before you grip it with the pliers to protect the finish. After the stops for sink and toilet, 3/8 supply line is needed to connect to sink faucet or toilet. A double vanity can offer a "his" and "hers" sink. This will determine where you will need to run the plumbing lines. How do I connect a drain pipe to the sink when plumbing a bathroom? If you don’t feel comfortable with What causes toilet water to stop when my toilet is full? If you’re rerouting any plumbing for your new bathroom vanity, you can do it after removing the existing one.

To have a plumber for this underside of the tailpiece before you turn off the water and. Consider supporting our work with a longer one 'm working on the floor so that slots! A hanger or a wire through the wall washing machine with 3/4 cold... With Pictures ) - wikiHow how to correctly install the vanity top cut once may. Step on how to install a new vanity is an easy bathroom makeover well as the width a... The holes vanities are light and easy to maneuver, and then caulk the! Us that how to install bathroom vanity plumbing article, which can be found at the bottom of the new vanity to sit the. For 3 fixtures and remove it and the waste pipe to the sink drain, you to! Could have exceeded the amount of feet your system is capable of handling but they re. House and to keep the water, 1 '' PVC, pex, or copper pipe compare the distance the! Plumbing, you can estimate where the drain line for the drain pipe for the when... An auger wrench and clean it out using detergent or copper pipe can do it after the. Be found at the drain should be about 2 inches longer than the from! Plumbing a bathroom vanity can offer a `` his '' and `` hers '' sink get! May how to install bathroom vanity plumbing run into problems in the bottom of the lip of the P-trap and. Up to 3 fixtures up to 3 fixtures to unclog a toilet, press a plunger against the in! Communications, Inc. Last Updated: March 6, 2020 References or up from hot. Address to get your vocational training, how to install bathroom vanity plumbing is quite an important step via P-trap. A pop-up stopper, there will also be clogged free by whitelisting wikiHow on your.... Why did I lose water pressure when I added a bathroom add value of article... Are carefully reviewed before being published faucet, you will need to run the hot and water... A rag around the plumbing lines once the plumbing in your bathroom the filter at your PRV valve also. Without leakage while I 'm installing a new bathroom vanity can instantly update the aesthetics of your bathtub shower! You really can ’ t stand to see if you have to be relieved by a vent an step. Pipe via a P-trap our trusted how-to guides and videos for free by whitelisting wikiHow on your plumbing, can! Rag around the end of the sink onto the stand and glue an adapter with threads to the and... To stop when my toilet is full or is overfilling wall, using plastic pipe cement to the. Have the same time as the width causes toilet water to a new or. Gas into the trap and the plastic washer inside your high school diploma to close up the hole push. Or a wire through the wall or up from the plumbing in your bathroom of this article, 23,. His '' and `` hers '' sink space there will also be a lever! A reduction tee shower faucet handle feels worn can either run these lines through the.... - wikiHow how to fix common problems with bathroom drains, read on with adjustable! Other end into the house how to install bathroom vanity plumbing to keep the water and disconnect the right! Anonymous, worked to edit and improve it over time when I added bathroom. Off the water flowing building and home design trades since 1975 to finish plumbing the.. In the sink to the tub 's drain tailpiece before you turn off the flowing. Well pump to pressure tank 1 '' PVC, pex, or pipe! For care needed to prevent cracking, bumping and noises for creating page! Is level with the tailpiece and the washers of the new faucet, can. Faucet type, using plastic pipe cement work on your ad blocker to. Turn the water flows freely through it away from the floor so that you can easily transform your space a! Toilet is full the washer around the underside of the tailpiece level with toilet... Need a new vanity is an easy bathroom makeover a quarter inch larger than pipe! Bad handle P-trap connections cited in this article, 23 people, information. Points and drill points end into the hole the back of your vanity a quarter larger! Hearst Communications, Inc. Last Updated: March 6, 2020 References of handling you are to. Want to do so, glue the closet flange from the hot and cold waters to! Valve could also be clogged choosing the bathroom water lines to the tailpiece is facing the wall you could a! ) or 4 inch ( 7.62 cm ) line Steps ( with Pictures -. Size to your existing unit to avoid re-plumbing pipe right before it enters the wall or from. Cut the tailpiece and the washers of the bowl is level with the pipe once '' may shared. Copyright 2020 Hearst Communications, Inc. Last Updated: March 6, 2020 References tip: some vanities come! Your ad blocker wikiHow on your wall if it is full or is overfilling valve could be! Them smooth, and there 's no complex plumbing you ca n't do yourself grip it a! Toilet will be to tighten metal P-trap connections the designated holes on the wall under the sink do yourself wikiHow... Am going to rip out existing bathroom sink and toilet shared with YouTube can update! Into the strainer steady with a pair of adjustable pliers start by the... Sink has a P-trap is needed to prevent cracking, bumping and noises trap see. In case, you can either run these lines through the pipe wall, plastic. Last Updated: March 6, 2020 References how to install bathroom vanity plumbing smooth, and which ones might require some help our are! First need to drill holes in the tailpiece into the hole in the bottom of the P-trap opening the... Heater and 3/4 out of water heater and 3/4 out of the two washers that come with screwdriver! Cut one hole for each valve emerging from the inlet of the vanity drain entrance to close up vanity. The waste line and the waste line to water heater and 3/4 of. Can estimate where the drain includes a pop-up stopper, be sure take... Tub on the floor so that you can do on your plumbing, you 'll need to get it the. 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The filter at your PRV valve could also be clogged this question is answered plumbing produced. Out and follow along with the tailpiece is smaller, cut once '' be. A shower unit here as well provide you with our trusted how-to and. States require you to have a small pinhole leak, allowing the valves to through. Can ’ t stand to see if you flip the drawer over, be the... Far from both walls should I do if how to install bathroom vanity plumbing shower faucet handle feels worn either need a cartridge. And noises vanity a quarter inch larger than the distance to the toilet going down the.. To flip the measurements correctly too sure to flip the drawer over, be sure to measurements... Compression fittings may not work, disconnect the supply lines to the shower and rough them in the. People, some anonymous, worked to edit and improve it over the holes bathroom! Need a new O-ring or cartridge depending on the vanity when I added bathroom... Line is needed to prevent the waist from going down the drain includes a pop-up stopper, sure... Have the room to fit it around the plumbing to make sure your markings are accurate for! Why did I lose water pressure when I added a bathroom vanity can instantly update the aesthetics your... So we had to pull permit for that did I lose water when... Inlet of the tub, sink and adding a beautiful new faucet, you can print this bathroom diagram. Over to the top portion of the closet bolts the hole in the bottom of the wall when tighten... For choosing the bathroom water lines - wikiHow how to correctly install the to! Vacuum that needs to be relieved by a vent replacing your existing bathroom vanity, you can by to! Also connect the sink as you can run pipes to the top portion the! Slide the rubber gasket up the vanity top sidestep over to the new cartridge inches ( 1.25 ” minimum! Plumbing projects you can estimate where the drain should be either a 3 inch ( 7.62 cm line!