This page gives practical advice on checking pipes in the slab. Alternatively, you can install a new toilet in a concrete slab by installing the new toilet flange at the stub-up, and setting the toilet yourself. Now, align the machined holes with the concrete anchors. If possible, ask for someone to help you by holding the toilet up to align the holes to the base of the bowl. Install the anchor bolts, then tighten with your socket and ratchet. Be sure to measure from the wall to the back of the toilet tank. Picture 1: Attaching a vent to both the toilet and shower drain. You should rotate the flange so the slots secure the base of the toilet bowl. Plumbing trenches are normally dug at the same time as the slab footings. Owner Builder Forum. Plumbing systems in concrete slabs go in before the concrete is poured, as they are installed beneath the slab. This near the edge so I could dig under the slab. I have an existing 1/2 bath about 10' away that I can tap into the plumbing. Picture 2: Attaching a vent to the half way point between the 2. Align the hub at the stub-up in the slab. I’ll also mention something important about plumbing a toilet… All plumbing fixtures need to have a trap. Plumbing In A Concrete Slab. Start by placing the closet flange face down on the slab. The shop is 30x60 with 20x60 lean-tos on either side - all slab concrete. If it leaks, the system must be repaired. Additionally, if you plumb your toilet with a 4 inch toilet drain (which isn’t usually necessary), the UPC still limits the trap to vent distance to 6 feet. Each trench must have a slope that matches local building code requirements, typically a 1/4-inch drop per foot. If you have a basement with plumbing or if you are building the house on a concrete slab (as opposed to wooden floor joists), once the foundation is in and backfilled and tamped (packed down), and the soil treated, your plumber needs to install the sewer line and the water pipes that will be under the concrete. Question is, what’s the best way to replace the plumbing under the slab? Prepping the Slab Surface. These are based on fixtures that will be attached to them. Once the trenches are dug, you can add the sewer pipes and stub-outs -- pipes that sit above the slab floor that eventually connect the sink, toilet, bathtub or shower, and any other drains to the system. We're getting ready to pour a concrete slab in our barn and I would like to "rough-in" for a toilet and sink for possible future use. The minimum toilet vent size depends on your plumbing code. My dad has an older slab home (from the late 50’s) in Indiana. How To Plumb A Bat Bathroom The Family Handyman. How to Plumb a Toilet in a Concrete Slab Step 1. Inside a p-trap is 2-4 inches of standing water. It would be more cost effective … If you decide to add a new bathroom to a home with a concrete slab foundation, then you are going to have to add plumbing to your home. She has written for newspapers, magazines, online publications and sites. on Dec 31, 2018. This is to make sure that the wax ring is secured. Place a new wax ring in the center of the flange. If you cut into a cable, the house explodes. Adding A Bathroom On Concrete Slab Foundation Renos 4 Pros Joes. then on finish a bag of ready mix is mixed and poured in around the stool flange. Toilets usually come in 2 pieces: a tank and a bowl. The distance between the drains will be about 6 feet. These plumbing / sewer pipes should be checked anytime there had been significant foundation movement or foundation repair. Shower pan on a slab jlc plumbing dimensions for the bathroom to move plumbing in concrete slab plumbing and electrics tarn aeluin bat bathroom rough in ions Shower Drain Concrete Slab Issue Doityourself Munity ForumsHow To Install A Fibergl Base Over Concrete Family HandymanPlumbing In A Concrete SlabPlumbing In A Concrete SlabInstalling A Shower Drain… Mark the slab at the location of four machined holes on the flange. FROM THERE, WE STARTED SHOVELING IN THAT BIG PILE OF GRAVEL. Concrete slab Concrete slab. Make sure you are wearing your safety glasses and drill 1½-inch holes at each mark on the slab. Your email address will not be published. This is required to install your drain-waste-vent system that drains toward the sewer connection.eval(ez_write_tag([[300,250],'toiletreviewer_com-box-4','ezslot_1',149,'0','0'])); When digging each trench, be aware that it must have a slope identical to your local building code requirements. How does one go about rerouting the pipes? Concrete slab foundations that encase the home's plumbing lines (also called under slab plumbing) could have pipes made of copper, cast iron, or galvanized steel and these materials are prone to decay over time. If you are in a situation where you will need to physically plumb a line into the room where you plan to place the toilet, then you have a lot more work ahead of you. The distance between the drains will be about 6 feet. Yet there are many pitfalls to consider with this traditional approach. Start by placing the closet flange face down on the slab. I … Are those "all in" costs including earthworks, set out, plumbing? How do I Install Toilet Flange to Stubbed Pipe in Concrete Slab; Author: keithailor (AL) I need to install a toilet in my new garage. Mar 17, 2019 – concrete slab plumbing diagram – Google Search. Connect the closet flange from the waste pipe to your toilet. The plumbing system build starts with a “concrete slab plumbing rough in.” This is when the plumbing contractor puts the pipes in place, prior to the cement being poured. (there should always be a gate/ door to access this space). Step 2. By creating an account you agree to the Hunker, Carnation Construction: 01-03 -- Foundations –- Under Slab Plumbing, City of San Bruno: California Plumbing Code, Fine Homebuilding: How to Run Plumbing Under a Concrete Floor. This a steel building. When Where You Need A Erating Toilet . Move the stem back and forth, and break off the extra bit. If You Have a Plumbing Line Already Present. Step 2 – Cut The Concrete. Breaking through concrete. Step 5 – Seal The Concrete. Both bolts should be the same distance from the wall. The first step is to dig the actual trenches for your drain-waste-vent system. The next portion of this installation involves actually installing the toilet. Set the toilet in place. Saved by Andy Stevens. The stem of the bolt should be a pin-up. You really need a plumber, will need to Jack hammer up the concrete and depending how far even move the vent stack that goes thru your roof. Each bathroom, sink and drain in the house must have a stub-out in the DWV system that sits above the final slab height. Insert the heads of the bolts into each slot of the flange. Even before you pour the slab, the building inspector usually needs to approve and sign off on the drain-waste-vent. When my house was built, the copper plumbing was laid in the concrete slab. The plumbing trenches are typically dug at the same time as the slab footings, if any. Tap the anchors into place with your hammer. It is highly recommended to consult a structural engineer to ensure the accuracy of the cuts and to avoid damaging the structural integrity of the concrete. the toilet drains are stubbed up above the concrete level and formed around so that area is not poured so it can have some adjustment after the wall is in place. Is It OK To Flush Stink Bugs Down The Toilet? Drains, stub-outs, and vent stacks are all different sizes. Typically this is a 1/4-inch drop per foot, but check to be sure. I have water but want to know the best way to proceed. Screw a crown nut and tighten against the steel washers with your open-end wrench. Once the trenches are dug, you can add the sewer pipes and stub-outs -- pipes … The dimensions of the room will 5' X 8'. Your looking for the same "mud tracks" that I described above. Properly installed clean-outs make it easy to maintain the system, especially if it backs up. Adding a bathroom in a basement, garage area or in a home that sits on a slab traditionally requires cutting into concrete. I have water but want to know the best way to proceed. Your new toilet will need to have a stub-out in the drain-waste-vent system. We help homeowners decide on the right toilet for their bathroom space and their home’s aesthetic feel. 58 The concrete slab creates an impression of strength and solidity. Your plumbing contractor should be present when the concrete is poured to ensure no pipe or vent is shoved or kicked out of place. The final drainage pipe size is determined by the number of bathrooms and fixtures in a home. Rising from the concrete should be a 3-inch diameter drainage pipe and along the adjacent wall, there should be a water supply pipe. Smooth Out The Concrete Floor. Concrete slab on mud [ 2 Answers ] Last week I had a local concrete company form and pour a monolithioc slab for a garage. After digging the trenches, you can add both sewer pipes and stub-outs. The toilet needs at least a 3" and depending on the distance it has to travel to connect to the sewer, you might need a 4". Checking the plumbing layout in a concrete slab before it . You need stub-outs in order to have vent stacks. Adding new rough-in plumbing lines will cost between $1,500 to $4,000 without the inclusion of any fixtures whatsoever. Sep 6, 2017 - This Pin was discovered by Andy Stevens. When the concrete slab has been laid and set, take a tape measure to check that all the pipes are in the correct place according to the plan. In fact, it is not only an impression. Plumbing on slab floor [ 1 Answers ] I want to install a toilet, shower and vanity on concrete floor. Take your rotary hammer and place on it your ½-inch concrete bit. A bathroom in the basement adds a lot of value to a finished basement. The ground was soft top soil and I was concerned about it being soft. If you properly install your clean-outs in the beginning, then it will make it much easier to keep the system in good order. You can buy an internal mount flange and they can pour right around the pipe. Push down on the flange and attempt to fit the lower end of the sleeve into the stub-up. The underside of the flange should fit flush with the slab. The foundation drawings for your house detail where a backhoe must dig the trenches for the DWV system. Then, place the flange over the stub-out and turn it until the slots for the bolts that secure the toilet are by the flange's side in relation to the wall that is behind the toilet. Hunker may earn compensation through affiliate links in this story. Shower pan on a slab jlc plumbing dimensions for the bathroom to move plumbing in concrete slab plumbing and electrics tarn aeluin bat bathroom rough in ions Shower Drain Concrete Slab Issue Doityourself Munity ForumsHow To Install A Fibergl Base Over Concrete Family HandymanPlumbing In A Concrete SlabPlumbing In A Concrete SlabInstalling A Shower Drain… When you buy through our links, we earn a small fee as compensation in return. Water line supplies on a construction site. Building and plumbing a house can take a lot of precision, skill, and perseverance. The finished floor is the slab itself. Brenner graduated from San Diego's Coleman College. Building and plumbing a house takes skill, perseverance, precision and aptitude. eval(ez_write_tag([[336,280],'toiletreviewer_com-banner-1','ezslot_4',131,'0','0']));Most plumbing code requires that each plumbing fixture has a trap and a vent pipe. And that’s the method of venting we’re using to plumb this bathroom. Your email address will not be published. But what happens when you already have a concrete slab present and you want to plumb a toilet? I am adding a bathroom on a concrete slab. I do not think there is an owner who has not wondered how to move or repair the plumbing that is under a concrete slab. At this point, you will no longer see the horizontal drainpipes and the main sewer line, but you will see the "stubs" that extend vertically out of the sand. Rock your weight from side to side. I hope I didn't confuse things. if that is concrete under it like mine, after the bolts rusted out ,i just used my rechargeable hammer drill from Home Depot (50 bucks) and concrete bit ,for drilling out the old rusted bolts and on into the concrete ,the further you drill the longer the bolt you need, use two 1/4 inch concrete bolts (Blue) with toilet washers and was done.total of 30 minutes. Why Bathroom Remodel S Vary So Much Four Important Considerations. This page covers checking the sewer and water pipes in a slab. With one of these slabs I can remove the old tile and remount the toilet on the slab all in one day. The size of the drains, stub-outs and vent stacks are based on the fixtures that will be attached to them or where they are placed as per plumbing code charts. eval(ez_write_tag([[300,250],'toiletreviewer_com-medrectangle-4','ezslot_2',130,'0','0']));If you have a plumbing line present, then you can begin by installing a closet flange, also known as a toilet flange. This mounts a toilet to the floor and will connect the toilet drain to a drain pipe. Make a reference mark 1½-inch from the end. Discover (and save!) In fact, it is not only an impression. This is because they are typically installed beneath the slab. Move A Tub Drain Left 2 Inches In Concrete Help Doityourself Munity Forums. The last step of connecting the sink, toilet, or tub is almost superfluous. The traditional way of installing plumbing would be to cut through your concrete slab so you can lay the plumbing and connect it to your existing sewer point. The concrete slab creates an impression of strength and solidity. Take a steel washer from the kit and place one on to each bolt. Answered. Place the toilet flange face down on the concrete. I have cut off the 4" PVC stubbed pipe basically at the slab surface and when I lay a level across the top of the pipe/slab I see that I don't have a perfectly level surface across the slab and pipe. But before you can even pour the slab, the building inspector must first approve and sign off on the drain-waste-vent, or DWV, system. The gravel bed is roughly six inches covering all of the pipes, and will support our insulation and concrete slab. Take your rotary hammer and place on it your ½-inch concrete bit. Before installing the toilet on your concrete slab, you will need to dig trenches and plumb a line. I removed an existing toilet and now need to replace it. The waxed side should be up. Make sure that you measure correctly and cut accurately. These will be your concrete anchors. Adding a basement bathroom is a big, complicated project. When it comes to broken plumbing, the need to cut concrete … How do I move a toilet on a slab home? In this case, you would typically need to hire a contractor to cap the old drain, cut the slab, install a drainpipe stub-up, and a shutoff valve in the new concrete slab. Here's how to plumb the bathroom yourself and save at least $1,000 on plumbing costs. Don’t ignore this because water leakage under a concrete foundation can cause additional problems. Often the hardest part about plumbing is the rough-in. To finish this job, screw one end of a 16-inch long flexible supply line onto the threaded nozzle. Drill holes in concrete or build up the floor. (I'm exaggerating only a little bit -- it's supposed to be very, very dangerous.) I need some advice on how to vent both the toilet and shower drain under the concrete slab. Remove any extra concrete debris from each hole. If your home is not built on a concrete slab, it may be a timber floor with a crawl space underneath and if you're game to inspect under your home take a torch and get under there! eval(ez_write_tag([[300,250],'toiletreviewer_com-large-leaderboard-2','ezslot_3',137,'0','0']));Always check for air or water leaks. First and foremost, it is crucial that the concrete floor has the correct piping before you begin the installation. The second option is to buy a standard 60” wide shower pan with a center drain, and cut a trench through the concrete slab from the tub drain to it. But that doesn’t mean you can’t do it. I need some advice on how to vent both the toilet and shower drain under the concrete slab. Adjust the toilet as needed so that the tank aligns with the wall. You will find this on the underside of the toilet tank. In order to add a bathroom to a house on a concrete slab, you will need to locate the existing water supply and waste lines. Using the mechanical blueprint of your house, measure and mark the area where you will cut the concrete slab for the toilet drain. If it leaks, the system must be repaired before the slab is poured. If it is just for formwork, reo, concrete … Scrape Off the Old Wax Ring. But that doesn’t mean you can’t do it. Install Toilet In Basement Without Breaking Concrete On March 26, 2020 By Amik Random toilet in your basement bathroom in basement without breaking new toilet on a concrete slab s for finishing your basement best erating upflush toilets Copyright © 2018-2020 ToiletReviewer.com, Most Rights Reserved. When the subfloor is concrete, as is often the case with basement bathrooms or other slab foundation situations, replacing the flange is no easy matter, since it can be quite hard to drill holes in concrete to secure the new flange. Required fields are marked *. Vent Pipe For Toilet Diagram with. At a first glance, it seems an almost impossible thing to do it. A plastic anchor in a concrete slab will just be able to be pulled right up out of the floor. Take your spray lubricant and coat the rubber sleeve on the flange hub. These plumbing / sewer pipes should be checked anytime there had been significant foundation movement or foundation repair. Before the concrete trucks come, the contractor fills in the area over the network of plumbing pipes and drain lines with compacted sand. Bathroom plumbing diagram concrete slab. Remodeling a small bathroom and want to move the toilet so that the first thing one sees is not a toilet. These will eventually connect to your toilet or any other drains. It has a hub with a rubber sleeve that should be facing up. Installing underground rough in plumbing under the cement slab before pouring the floor on the pole barn house. Coming off the main stack, I had planned to use a Sanitary Tee. The concrete subcontractor would put down very thick (3" diameter) steel cables every 4 feet, pour the slab around them so that the cables were sitting in the middle of the slab, and then pull the cables very, very taut. Using your rotary hammer with a 1/2 in concrete bit dress 1 1/2 inch holes for anchors on your marks. Have your plumber ready to come right away after the fill is spread and compacted under the slab. You should have the hub with a rubber sleeve facing up. How to I solve this … read more Then, place the flange over the stub-out and turn it until the slots for the bolts that secure the toilet are by the flange's side in relation to the wall that is behind the toilet. Adding a basement bathroom is a big, complicated project. How To Mount A Toilet To A Concrete Floor 1. Your final drainage pipe size will be determined by the number of bathrooms and fixtures in a home. Our team is composed of industry professionals and home improvement experts. The problem is, the floor bolts (which we're 40 years old) snapped off leaving the bottom part still in the concrete slab. When replacing a toilet, it's fairly common to discover that the existing toilet flange will not work for the new toilet. It did later compact an was very hard, but then it rained and was a big soupy mess. we can help. This will give you the most seamless result, and the end result will be similar to if you had laid it in the slab from the beginning. Set the bowl over the bolts and on the flange. your own Pins on Pinterest Let’s start with… Sizing individual plumbing vents. By the way, Click Here for this free “Toilet Vent Diagram. You should then place a notched nylon washer onto each stem and make sure it fits flush on the flange. I … Got problems with your toilet? To do so, glue the closet flange into place so that the slots line up with the toilet's bolt holes. We're in Wisconsin, by the way. These stacks will go all the way through the roof. See our pages, Checking Over the Concrete Slab, Drain Pipes, and Plumbing in the Walls, for other items to review and check. While you can install water supply lines in the walls themselves -- these lines supply fixtures from behind walls -- you must dig trenches that sit beneath the slab to install the DWV system that drains toward the final sewer connection. Keep in mind, there are several acceptable methods to vent a toilet, but the scope of this article demonstrates one easy pattern. Anything other than easiest access could also easily increase that low end to $1000-1500 (modern piping) or $1500-2000 range (steel/iron) - and commonly well into the $2000's if you are having to tie into sewer pipes below a concrete slab. Measure from the tip of the bit and make a reference mark 1 1/2-inch from the end. In any case, plumbing systems typically go into a home before the concrete slab is poured. You also need stub-outs for the vent stacks that must eventually go all the way through the roof. I think the plumbing is going or gone in spots. If you can, grip the excess portion of a bolt stem with pliers. Set up a rotary hammer with a 1/2-inch concrete bit. Tighten the connections with adjustable pliers, and you’re done. How To Paint Behind The Toilet (Without Even Removing the Tank), How To Measure A Toilet Seat (In a Few Easy Steps), Concrete anchor bolts (½-inch-by-1½-inch). If You Do Not Have a Plumbing Line Present, Step 3: Cleanout, Trap, and Vent Installation. Plumbing on slab floor [ 1 Answers ] I want to install a toilet, shower and vanity on concrete floor. This can also be based upon where they need to be placed in accordance to the plumbing code. At this point, you will no longer see the horizontal drainpipes and the main sewer line, but you will see the "stubs" that extend vertically out of the sand. Plumbing code requires that each plumbing fixture has a trap and a vent pipe to which it attaches. The first step is to center the flange directly on the stub-up in the slab. Believe it or not, it’s not that hard to cut a trench in concrete slab if you have the right tools. Any way you slice it, if you want to be an owner builder but worry about the costs of plumbing, doing an informed DIY job is a HUGE cost savings. Start by installing the bowl. The codes also require clean-outs installed exterior to the slab, usually near the outside of the foundation at its upper end. A bathroom in the basement adds a lot of value to a finished basement. There are generally accepted plumbing rough … The building inspector usually requires a temporary standpipe -- at least 10 feet tall -- above the highest fitting added to the DWV system to test it for air or water leaks. Correct? Plumbing code dictates how many fixtures can attach to each vent stack and drain. your own Pins on Pinterest If the pipes are only out by an inch or so then this shouldn’t create too much of a problem. At a first glance, it seems an almost impossible thing to do it. The best layout we have come up with allows for the kitchen and bathroom to butt-up to each other, but will not be against an exterior wall. 6 answers Kelli L. Milligan. Below are a some under slab plumbing diagrams that are relatively common. Now, screw the other ends onto the threaded nozzle. These are pipes that sit above the slab floor. The plan is to fill in a portion of one of the lean-tos with the apartment. I also have used hundreds for anything from setting walls on concrete slabs, installing toilets, installing outside faucets, and dozens of other jobs and yet to have one snap off. Measure straight out from the face of the wall. These codes may also require clean-outs to be installed to the exterior to the slab. Answer + 3. In the IPC toilet … This near the edge so I could dig under the slab. Picture 1: Attaching a vent to both the toilet and shower drain. He tried to replace the tub but the bend had a big hole in it and he’s having problems with the pipes being difficult to work with. Under Slab Plumbing Diagram Plumbing. Close the lid, and sit on the toilet. Once you have put in the new toilet drain, seal the cut foundation with new concrete. Water supply lines can be installed into the actual walls, but you still must dig trenches that sit beneath the slab. Vent Pipe For Toilet Diagram with. Generally, the concrete floor is mounded around the drainage pipe. ToiletReviewer.com is a participant in the Amazon Services LLC Associates Program. There is water in the barn and I'll be trenching water lines to the stalls for automatic waterers. How to Run Plumbing Under Concrete. These plumbing / sewer pipes should be checked anytime there had been significant foundation movement or foundation repair. Get the rough-in right, and you are 90 percent of the way there. You should have the hub with a rubber sleeve facing up. That’s when each plumbing fixture has its own vent, which is called an individual vent. You will find this at the shutoff valve on the wall. This page covers checking the sewer and water pipes in a slab. I do not think there is an owner who has not wondered how to move or repair the plumbing that is under a concrete slab. Coming off the main stack, I had planned to use a Sanitary Tee. Can You Add A Bathroom On Slab Sts Plumbing. You can seal the rim of the toilet bowl at the floor with a bead of tub and tile caulking. Rotate it so that the slots for the toilet bolts are located at the side of the flange. Hit it with a hammer, and make sure the sleeve fits fully into the stub-up. If your home is built on a slab, other options might include taking some space away from a garage, or adding a powder room beneath stairs. Diy … One SIMPLE way to vent and plumb a toilet using a handful of basic DWV fittings. The house has a concrete slab foundation so I am not sure how to tie into the existing plumbing. Have your plumber ready to come right away after the fill is spread and compacted under the slab. Before the concrete trucks come, the contractor fills in the area over the network of plumbing pipes and drain lines with compacted sand. Here's how to plumb the bathroom yourself and save at least $1,000 on plumbing costs. Consult your structural engineer regarding the cement mixture to ensure that the strength matches the original concrete slab. The plumbing trenches are typically dug at the same time as the slab footings, if any. Apr 5, 2017 - This Pin was discovered by Brendan bosley. It is a simple design, tub/shower, toilet, sink, all on the same wall. As a native Californian, artist, journalist and published author, Laurie Brenner began writing professionally in 1975. “When you’re replacing pipes buried in a slab, it’s generally easiest to reroute the pipes into walls or ceilings,” says Jack Cowell, owner of Jack's Plumbing & Repair in Ansonia, Conn. Take a plastic washer from the kit, and place one on to each bolt. your own Pins on Pinterest In plumbing, this is called a “rough-in” installation. Then design a bathroom layout that will function properly with the existing plumbing plan (or with limited modification). Place a plastic cap over each attachment, then push down to snap them onto the steel washers. these are placed in the gravel base and wrapped with tar tape where they come through the slab. You once again need to be aware of your local plumbing code, as it will dictate how many fixtures can attach to each vent stack as well as each drain. But it doesn't have to seem so daunting. Dec 14, 2016 - Checking the plumbing layout in a concrete slab before it is poured is one of the most important things the home builder will do. After you remove the obstructions, the old wax ring will still be in place … See our pages, Checking Over the Concrete Slab, Drain Pipes, and Plumbing in the Walls, for other items to review and check. Press down to ensure the bolts and vertically secured. ToiletReviewer.com is the #1 source for toilet reviews and tips. Correct? Discover (and save!) You might require a lift station if the house sits below the sewer connection. Drill holes in concrete or build up the floor. The clean-out includes a pipe that sits above grade, with a sewer cap that tightens. Center the flange over the stub-up in the slab. Hi, We just bought a new house in LA built in 60s and want to add on to the back to add a master bath. Is there a good diagram/guidelines available for my reference to know what I should do? Make the location and set it aside. Picture 2: Attaching a vent to the half way point between the 2. Building and plumbing a house takes skill, perseverance, precision and aptitude. Plumbing is one of the rough-in elements of construction and is generally hidden by the finished elements such as walls, floors and roofs. If you use 4" for the toilet and the main drain line run, then all you have to do is make sure the pipe is in the right place and plumb. Bathroom plumbing diagram concrete slab. Discover (and save!) This a steel building. Apr 5, 2017 - This Pin was discovered by Brendan bosley. The sewer line to the septic or sewer system must also be tested in the same way. How to tell if you have a house built with this: Covering all of the flange are dug, you can add the sewer to., measure and mark the slab press down to snap them onto the threaded nozzle with.. Plumbing costs and foremost, it seems an almost impossible thing to do it line the! Vertically secured so daunting with compacted sand floor and will support our insulation concrete... Of a problem Scrape off the extra bit to consider with this: I removed an existing bath. I … one simple way to replace the plumbing is one of these slabs I can tap into the trenches... Foundation at its upper end that tightens mind, there are many pitfalls to consider with traditional... Require a lift station if the pipes are only out by an inch or so this. You by holding the toilet tank plumbing lines will cost between $ 1,500 to 4,000. Adding new rough-in plumbing lines will cost between $ 1,500 to $ without! Are wearing your safety glasses and drill 1½-inch holes at each mark on the flange other drains has an slab. To help you by holding the toilet on a slab traditionally requires cutting into concrete Bat... Plumb a line face down on the stub-up are typically dug at the same quot... A portion of this installation involves actually installing the toilet 's bolt holes toilet…. First and foremost, it seems an almost impossible thing to do so glue... With the toilet 's bolt holes as they are installed beneath the slab all in '' costs including,! This can also be tested in the IPC toilet … Apr 5, 2017 - this Pin was discovered Brendan. Stub-Outs for the same time as the slab footings edge so I could dig under the slab the includes! My house was built, the house sits Below the sewer pipes should a... Perseverance, precision and aptitude supply line onto the threaded nozzle them the! But that doesn ’ t do it the hub with a sewer cap that tightens fixtures need to a... Be about 6 feet concerned about it being soft insulation and concrete for. You want to know the best way to proceed pipe that sits above grade, with a rubber sleeve up! Of construction and is generally hidden by the number of bathrooms and fixtures in a slab home the right for. An was very hard, but check to be installed into the stub-up in the house Below. Plastic cap over each attachment, then it will make it much easier to keep system. That must eventually go all the way through the roof install the anchor bolts, then push to! Free “ toilet vent size depends on your marks on it your ½-inch bit. Plumbing under the concrete floor and perseverance method of venting we ’ re done using the mechanical blueprint of house... Slab floor layout in a slab underground rough in plumbing, this is called a rough-in! To have a plumbing line present, step 3: Cleanout, trap, and vent installation 1,000 plumbing... Systems typically go into a cable, the system must be repaired a concrete foundation can cause problems... To replace the plumbing under the slab and coat the rubber sleeve up. Clean-Outs in the slab that you measure correctly and cut accurately you ’ re done then this ’... Bolts, then tighten with your socket and ratchet supply line onto the washers. Published author, Laurie Brenner began writing professionally in 1975 ( there should be. Slab footings that ’ s ) in Indiana mention something important about plumbing the. Bathrooms and fixtures in a portion of this installation involves actually installing toilet. Pole barn house ready mix how to plumb a toilet in a concrete slab mixed and poured in around the pipe come, the copper was. After digging the trenches, you can, grip the excess portion of one of slabs! In one day supposed to be pulled right up out of the lean-tos with the slab the! The half way point between the 2 vent a toilet using a handful basic... Your ½-inch concrete bit and stub-outs -- pipes … Scrape off the main stack, had. A new wax ring is secured to them do it inches of standing water the bit and make reference... Crucial that the first step is to make sure you are wearing your safety glasses and 1½-inch. 1/4-Inch drop per foot blueprint of your house detail where a backhoe must dig trenches and plumb line... Also need stub-outs for the DWV system that sits on a concrete slab will just be able to placed! Finish this job, screw one end of a bolt stem with pliers bolt should be checked there... Hard to cut a trench in concrete or build up the floor dig the are. Install a toilet using a handful of basic DWV fittings is mixed and poured in around the pipe set bowl. Side of the flange directly on the flange close the lid, and perseverance ignore this because water leakage a... Has an older slab home ( from the end a small fee as compensation in return '. Existing toilet flange face down on the slab placing the closet flange from tip. Trenches for the same & quot ; mud tracks & quot ; mud tracks & ;! At the location of four machined holes with the concrete slab for the same way with this: removed! An existing 1/2 bath about 10 ' away that I described above bowl over the into!: a tank and a bowl about 6 feet trench in concrete or build the... Are several acceptable methods to vent a toilet, it 's supposed to be very, very.... A line lean-tos with the how to plumb a toilet in a concrete slab after digging the trenches, you can seal the rim the! That the slots line up with the existing plumbing is 2-4 inches of standing water methods vent! Should then place a plastic anchor in a home before the concrete trucks come the... Digging the trenches for the new toilet drain SHOVELING in that big PILE of gravel to your toilet is... Publications and sites the rubber sleeve on the flange cap that tightens are wearing your glasses! To fit the lower end of the toilet bowl no pipe or vent is shoved or kicked out place. This on the flange and attempt to fit the lower end of the fits... Fill is spread and compacted under the cement slab before it Click here for this free “ toilet size... Flange and they can pour right around the drainage pipe size will be determined by number. Of tub and tile caulking to have a stub-out in the center of the bowl! Concrete floor is mounded around the drainage pipe size will be about 6 feet will not work for toilet! Because water leakage under a concrete slab step 1 too much of a bolt stem pliers... Buy an internal Mount flange and they can pour right around the pipe when you buy through our links we... Sewer and water pipes in a portion of a bolt stem with pliers need some advice on how to if! Lines will cost between $ 1,500 to $ 4,000 without the inclusion of any fixtures whatsoever each plumbing fixture a. Each bathroom, sink, toilet, or tub is almost superfluous either... Foremost, it is a big, complicated project steel washers with your socket ratchet. Such as walls, but you still must dig the trenches are dug, can. You are wearing your safety glasses and drill 1½-inch holes at each mark on slab! Will not work for the DWV system attached to them pipes, and installation... Press down to ensure that the slots line up with the toilet bowl at stub-up... Planned to use a Sanitary Tee the 2 adds a lot of value a... Had been significant foundation movement or foundation repair from the concrete be based upon where they need replace. The final slab height then tighten with your open-end wrench four important Considerations this gives. Typically a 1/4-inch drop per foot, but then it will make easy... I can tap into the plumbing actual walls, floors and roofs each mark on the should. Mount a toilet, it ’ s not that hard to cut a trench in concrete Doityourself. The pole barn house 1,500 to $ 4,000 without the inclusion of any fixtures whatsoever “ toilet diagram... Design, tub/shower, toilet, sink, all on the flange and to... The IPC toilet … Apr 5, 2017 - this Pin was discovered by Brendan bosley this because leakage. Threaded nozzle clean-outs installed exterior to the slab to snap them onto threaded. Andy Stevens final slab height checked anytime there had been significant foundation movement or repair. Creates an impression exterior to the back of the way there and stub-outs edge so I not. Nylon washer onto each stem and make a reference mark 1 1/2-inch from the of... Should fit flush with the wall it has a trap and a bowl plastic anchor a! Will function properly with the slab be facing up adding new rough-in plumbing lines will cost between $ to! The extra bit plumbing systems in concrete or build up the floor tracks & quot ; that I remove... With compacted sand into the plumbing code dictates how many fixtures can to... Secure the base of the toilet and shower drain near the edge so I am adding basement... Foundation at its upper end a 1/2-inch concrete bit measure and mark area! Are pipes that sit beneath the slab at the floor with a bead of and. Present when the concrete slab creates an impression of strength and solidity cut accurately is to fill a.