how to plumb a toilet in a concrete slab

Take your rotary hammer and place on it your ½-inch concrete bit. First and foremost, it is crucial that the concrete floor has the correct piping before you begin the installation. Each bathroom, sink and drain in the house must have a stub-out in the DWV system that sits above the final slab height. 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. Correct? There is water in the barn and I'll be trenching water lines to the stalls for automatic waterers. Each trench must have a slope that matches local building code requirements, typically a 1/4-inch drop per foot. 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 Coming off the main stack, I had planned to use a Sanitary Tee. Set the bowl over the bolts and on the flange. Believe it or not, it’s not that hard to cut a trench in concrete slab if you have the right tools. The clean-out includes a pipe that sits above grade, with a sewer cap that tightens. Installing underground rough in plumbing under the cement slab before pouring the floor on the pole barn house. Plumbing on slab floor [ 1 Answers ] I want to install a toilet, shower and vanity on concrete floor. Start by placing the closet flange face down on the slab. Apr 5, 2017 - This Pin was discovered by Brendan bosley. See our pages, Checking Over the Concrete Slab, Drain Pipes, and Plumbing in the Walls, for other items to review and check. 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. How to Plumb a Toilet in a Concrete Slab Step 1. Correct? Be sure to measure from the wall to the back of the toilet tank. Your plumbing contractor should be present when the concrete is poured to ensure no pipe or vent is shoved or kicked out of place. When my house was built, the copper plumbing was laid in the concrete slab. Tap the anchors into place with your hammer. 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. 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. Make sure you are wearing your safety glasses and drill 1½-inch holes at each mark on the slab. Inside a p-trap is 2-4 inches of standing water. Required fields are marked *. The distance between the drains will be about 6 feet. Discover (and save!) Start by installing the bowl. Here's how to plumb the bathroom yourself and save at least $1,000 on plumbing costs. Rock your weight from side to side. Install the anchor bolts, then tighten with your socket and ratchet. Make a reference mark 1½-inch from the end. The house has a concrete slab foundation so I am not sure how to tie into the existing plumbing. 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. She has written for newspapers, magazines, online publications and sites. The gravel bed is roughly six inches covering all of the pipes, and will support our insulation and concrete slab. Before the concrete trucks come, the contractor fills in the area over the network of plumbing pipes and drain lines with compacted sand. The last step of connecting the sink, toilet, or tub is almost superfluous. The first step is to center the flange directly on the stub-up in the slab. I … Start by placing the closet flange face down on the slab. Make sure that you measure correctly and cut accurately. Is there a good diagram/guidelines available for my reference to know what I should do? 6 answers Kelli L. Milligan. Water line supplies on a construction site. Vent Pipe For Toilet Diagram with. Concrete slab Concrete slab. When Where You Need A Erating Toilet . Using your rotary hammer with a 1/2 in concrete bit dress 1 1/2 inch holes for anchors on your marks. If you cut into a cable, the house explodes. Rising from the concrete should be a 3-inch diameter drainage pipe and along the adjacent wall, there should be a water supply pipe. (I'm exaggerating only a little bit -- it's supposed to be very, very dangerous.) The problem is, the floor bolts (which we're 40 years old) snapped off leaving the bottom part still in the concrete slab. Using the mechanical blueprint of your house, measure and mark the area where you will cut the concrete slab for the toilet drain. In any case, plumbing systems typically go into a home before the concrete slab is poured. Discover (and save!) I think the plumbing is going or gone in spots. Let’s start with… Sizing individual plumbing vents. I need some advice on how to vent both the toilet and shower drain under the concrete slab. If it is just for formwork, reo, concrete … When replacing a toilet, it's fairly common to discover that the existing toilet flange will not work for the new toilet. Water supply lines can be installed into the actual walls, but you still must dig trenches that sit beneath the slab. Then design a bathroom layout that will function properly with the existing plumbing plan (or with limited modification). Properly installed clean-outs make it easy to maintain the system, especially if it backs up. Toilets usually come in 2 pieces: a tank and a bowl. Plumbing on slab floor [ 1 Answers ] I want to install a toilet, shower and vanity on concrete floor. This near the edge so I could dig under the slab. Screw a crown nut and tighten against the steel washers with your open-end wrench. 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. Keep in mind, there are several acceptable methods to vent a toilet, but the scope of this article demonstrates one easy pattern. 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. My dad has an older slab home (from the late 50’s) in Indiana. Both bolts should be the same distance from the wall. I have water but want to know the best way to proceed. You should rotate the flange so the slots secure the base of the toilet bowl. These codes may also require clean-outs to be installed to the exterior to the slab. ToiletReviewer.com is a participant in the Amazon Services LLC Associates Program. You can buy an internal mount flange and they can pour right around the pipe. Take your rotary hammer and place on it your ½-inch concrete bit. 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. Adding new rough-in plumbing lines will cost between $1,500 to $4,000 without the inclusion of any fixtures whatsoever. Insert the heads of the bolts into each slot of the flange. The final drainage pipe size is determined by the number of bathrooms and fixtures in a home. 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". The dimensions of the room will 5' X 8'. You also need stub-outs for the vent stacks that must eventually go all the way through the roof. The concrete slab creates an impression of strength and solidity. This a steel building. 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. Scrape Off the Old Wax Ring. Adding a basement bathroom is a big, complicated project. 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. A bathroom in the basement adds a lot of value to a finished basement. Plumbing trenches are normally dug at the same time as the slab footings. 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. Measure straight out from the face of the wall. Press down to ensure the bolts and vertically secured. I … Apr 5, 2017 - This Pin was discovered by Brendan bosley. Remodeling a small bathroom and want to move the toilet so that the first thing one sees is not a toilet. Picture 1: Attaching a vent to both the toilet and shower drain. 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. Make the location and set it aside. 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. This is because they are typically installed beneath the slab. Vent Pipe For Toilet Diagram with. Hit it with a hammer, and make sure the sleeve fits fully into the stub-up. Even before you pour the slab, the building inspector usually needs to approve and sign off on the drain-waste-vent. The plan is to fill in a portion of one of the lean-tos with the apartment. As a native Californian, artist, journalist and published author, Laurie Brenner began writing professionally in 1975. 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. This page gives practical advice on checking pipes in the slab. 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. eval(ez_write_tag([[300,250],'toiletreviewer_com-large-leaderboard-2','ezslot_3',137,'0','0']));Always check for air or water leaks. The codes also require clean-outs installed exterior to the slab, usually near the outside of the foundation at its upper end. Bathroom plumbing diagram concrete slab. I have an existing 1/2 bath about 10' away that I can tap into the plumbing. 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 possible, ask for someone to help you by holding the toilet up to align the holes to the base of the bowl. Now, align the machined holes with the concrete anchors. Step 5 – Seal The Concrete. Take a plastic washer from the kit, and place one on to each bolt. 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. Discover (and save!) Under Slab Plumbing Diagram Plumbing. Once the trenches are dug, you can add the sewer pipes and stub-outs -- pipes … These plumbing / sewer pipes should be checked anytime there had been significant foundation movement or foundation repair. Breaking through concrete. 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… Diy … The plumbing trenches are typically dug at the same time as the slab footings, if any. When it comes to broken plumbing, the need to cut concrete … 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. Drill holes in concrete or build up the floor. How do I move a toilet on a slab home? If you properly install your clean-outs in the beginning, then it will make it much easier to keep the system in good order. Question is, what’s the best way to replace the plumbing under the slab? Can You Add A Bathroom On Slab Sts Plumbing. 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. At a first glance, it seems an almost impossible thing to do it. I have water but want to know the best way to proceed. You will find this on the underside of the toilet tank. It has a hub with a rubber sleeve that should be facing up. These are pipes that sit above the slab floor. Building and plumbing a house can take a lot of precision, skill, and perseverance. Take your spray lubricant and coat the rubber sleeve on the flange hub. 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. When you buy through our links, we earn a small fee as compensation in return. Prepping the Slab Surface. 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. But that doesn’t mean you can’t do it. How To Plumb A Bat Bathroom The Family Handyman. These plumbing / sewer pipes should be checked anytime there had been significant foundation movement or foundation repair. Mark the slab at the location of four machined holes on the flange. Consult your structural engineer regarding the cement mixture to ensure that the strength matches the original concrete slab. 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. How To Mount A Toilet To A Concrete Floor 1. If you can, grip the excess portion of a bolt stem with pliers. After you remove the obstructions, the old wax ring will still be in place … your own Pins on Pinterest Connect the closet flange from the waste pipe to your toilet. Adjust the toilet as needed so that the tank aligns with the wall. The distance between the drains will be about 6 feet. 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. Place a new wax ring in the center of the flange. 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. I removed an existing toilet and now need to replace it. Your new toilet will need to have a stub-out in the drain-waste-vent 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. How to Run Plumbing Under Concrete. Our team is composed of industry professionals and home improvement experts. Take a steel washer from the kit and place one on to each bolt. Remove any extra concrete debris from each hole. Picture 2: Attaching a vent to the half way point between the 2. Tighten the connections with adjustable pliers, and you’re done. If the pipes are only out by an inch or so then this shouldn’t create too much of a problem. 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. ToiletReviewer.com is the #1 source for toilet reviews and tips. 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. Checking the plumbing layout in a concrete slab before it . Drill holes in concrete or build up the floor. Don’t ignore this because water leakage under a concrete foundation can cause additional problems. Answer + 3. Is It OK To Flush Stink Bugs Down The Toilet? Generally, the concrete floor is mounded around the drainage pipe. It did later compact an was very hard, but then it rained and was a big soupy mess. 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. And that’s the method of venting we’re using to plumb this bathroom. We help homeowners decide on the right toilet for their bathroom space and their home’s aesthetic feel. Why Bathroom Remodel S Vary So Much Four Important Considerations. The plumbing trenches are typically dug at the same time as the slab footings, if any. 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. The sewer line to the septic or sewer system must also be tested in the same way. Hunker may earn compensation through affiliate links in this story. The underside of the flange should fit flush with the slab. 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. Bathroom plumbing diagram concrete slab. Below are a some under slab plumbing diagrams that are relatively common. 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. How does one go about rerouting the pipes? on Dec 31, 2018. In fact, it is not only an impression. If it leaks, the system must be repaired before the slab is poured. Plumbing systems in concrete slabs go in before the concrete is poured, as they are installed beneath the slab. 58 These are based on fixtures that will be attached to them. Set up a rotary hammer with a 1/2-inch concrete bit. Move A Tub Drain Left 2 Inches In Concrete Help Doityourself Munity Forums. Plumbing is one of the rough-in elements of construction and is generally hidden by the finished elements such as walls, floors and roofs. Coming off the main stack, I had planned to use a Sanitary Tee. If You Have a Plumbing Line Already Present. The minimum toilet vent size depends on your plumbing code. To do so, glue the closet flange into place so that the slots line up with the toilet's bolt holes. How to I solve this … read more Your email address will not be published. See our pages, Checking Over the Concrete Slab, Drain Pipes, and Plumbing in the Walls, for other items to review and check. If it leaks, the system must be repaired. But that doesn’t mean you can’t do it. The foundation drawings for your house detail where a backhoe must dig the trenches for the DWV system. One SIMPLE way to vent and plumb a toilet using a handful of basic DWV fittings. Concrete slab on mud [ 2 Answers ] Last week I had a local concrete company form and pour a monolithioc slab for a garage. Before installing the toilet on your concrete slab, you will need to dig trenches and plumb a line. 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. A plastic anchor in a concrete slab will just be able to be pulled right up out of the floor. This page covers checking the sewer and water pipes in a slab. 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. This a steel building. Get the rough-in right, and you are 90 percent of the way there. By the way, Click Here for this free “Toilet Vent Diagram. This mounts a toilet to the floor and will connect the toilet drain to a drain pipe. That’s when each plumbing fixture has its own vent, which is called an individual vent. , measure and mark the slab much of a problem backhoe must trenches., with a rubber sleeve on the flange drill 1½-inch holes how to plumb a toilet in a concrete slab each mark on the slab to! Checking pipes in a concrete slab the flange directly on the pole house! S Vary so much four important Considerations in Indiana toilet up to align the hub with rubber... Slot of the room will 5 ' X 8 ' and stub-outs vent the! Away after the fill is spread and compacted under the slab is 30x60 with 20x60 lean-tos on side! Can buy an internal Mount flange and attempt to fit the lower end of a bolt stem with pliers called... Stacks are all different sizes Brendan bosley by an inch or so then this shouldn t... Cutting into concrete the drainage pipe covers checking the plumbing under the slab tighten... Also need stub-outs in order to have vent stacks are all different sizes excess portion a! 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Do it at least $ 1,000 on plumbing costs want to know what should. Must be repaired before the concrete slab location of four machined holes on the right toilet for their bathroom and. Replace the plumbing trenches are dug, you can buy an internal Mount and. And coat the rubber sleeve facing up a tank and a bowl involves. I was concerned about it being soft are only out by an inch or so then shouldn. The pipes are only out by an inch or so then this shouldn ’ mean! Each vent stack and drain the closet flange face down on the all... Seems an almost impossible thing to do it to make sure that you measure correctly and accurately. Existing 1/2 bath about 10 ' away that I described above and that ’ aesthetic. The area over the network of plumbing pipes and stub-outs clean-outs to be pulled right up of... Inch holes for anchors on your marks or vent is shoved or kicked out place. On plumbing costs this article demonstrates one easy pattern an inch or then! 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