Plumbers Battle Clogs, Venting, and Removal

“1st photo is my main cast iron soil stack in the basement. Bathroom is above. The utility sink is piped in to the clean out . I’m assuming the sink is venting here but not to code due to being below the bathroom above that’s plumbed into the stack? Next photo you’ll see what used to be our prison bathroom. I’m nixing it. I’m capping the toilet and will probably keep the sink plumbing + an AAV for the new utility sink spot. I’m assuming this isn’t vented but idk. I’m thinking of making this space”

“Trying to start planning to finish our basement, can someone tell me what is what in the roughed in basement? 4” for toilet, 2” for sink, what’s the tall pvc and black box on the floor for the shower? submitted by /u/Ashamed-Nectarine937 [link] [comments]”

“Hi all, I am replacing the drains in my house and adding a shower to my basement. This is my first under slab plumbing job so learning a lot as I go. I am having a hard time figuring out where and how I can vent the shower drain while still being code compliant with p trap arm length, etc. At the moment I have a 4x4x2 wye on the main drain that I intend to use for the shower drain and vent. I’ve figured out how to vent my other fixtures so this would be the last one. I will say, because of the l”

“Hi everyone, I’m currently renovating my bathroom, which includes relocating a toilet flange. I’m only moving it over (along a floor joist) by about 2 feet so I didn’t expect a problem. However, I realized that I’ll need to also move the flange in towards (and hitting) the nearby joist by about 1.5.” In other words, what was a 12” rough in will essentially become a 13.5” rough in as I’m planning to shim the wall out with 2x4s account for an existing shower (see pictures below). My question is -”

“Afternoon. Looking to add a toilet to my basement ( and a bathroom ). Given that it's a slab I'd prefer to just get a rear-exhausting toilet and connect it to the bottom Y of this already existing stack about 3 feet away. I'm thinking the best option would be to replace the Y with a W ( or whatever it's called ) since the toilet would be to the left of this stack. That said - I'm a total novice. I'm reading up on the basics but I'm curious what kinds of traps or probl”

“I’m planning to add a bathroom in my basement in Upper Darby, Pennsylvania. The new bathroom will have: A sink A walk-in shower A rear-outlet flush toilet The attached images show the existing plumbing and my proposed fixture locations. In the colored image, the blue pipes are existing and the white pipes represent the proposed sink and shower connections. The existing plumbing is arranged as follows: The large pipe running toward the main sewer is 3-inch. All the other existing pipes are 1½-inc”

“I’m raising my floor a good 5” due to wye fitting at stack height. Previous install had 3” waste to toilet backpitched to make it work. Now with proper pitch the floor has to come up a good amount. Before I do that, please tell me there’s no other way to keep this flange a bit lower? Standard sweep 90 brought me up 1/4” higher. submitted by /u/LosPollosFirminos [link] [comments]”

“I’m raising my floor a good 5” due to wye fitting at stack height. Previous install had 3” waste to toilet backpitched to make it work. Now with proper pitch the floor has to come up a good amount. Before I do that, please tell me there’s no other way to keep this flange a bit lower? Standard sweep 90 brought me up 1/4” higher. submitted by /u/LosPollosFirminos [link] [comments]”

“Any plumbers on here that will have an idea on how I’ll vent the subfloor pipes? My plan was to run the 4 inch waste out under the utility window picking up the kitchen island L, wet room and utility sink on the way. The upstairs soil pipe will come down that wall also but I think it’s too far away to vent the island and toilet ? submitted by /u/Dayes97 [link] [comments]”

“Re-doing a bathroom and have a cast iron toilet flange that is now too low. Area doesn’t look too bad. Am I good to use a set rite flange extender or spacers here? Or is there a better way that doesn’t involve a flange replacement. Gap between flange and subfloor is 7/8 inch. submitted by /u/sky_6 [link] [comments]”

“I have an older home with a leaking toilet. We pulled up the toilet and found a failing metal flange that was leaded in (that was fun to remove!). Now I'd like to install a new flange - purchased the Oatey Twist N Set - but there isnt anything substantial to mount it to, you can see the gaps around the pipe. This is on the ground floor and as far as I can tell a concrete subfloor. Just wondering what my options are. Thanks for any help. First time home remodeler/"drywaller"/"e”

“Hi all, I’m in the middle of replacing subfloor and flange to fix a faulty wax ring. My question is where do I pry, or cut the flange to get it off? As you can see the drain pipe goes straight down from the bottom of the flange so I don’t know where the flange stops or ends to either pry or cut. If anyone could please point me in the right spot to pry I would greatly appreciate it! submitted by /u/Ioiwin [link] [comments]”

“Toilet flange extendor. Screws and or tap cons. I have also used extra thick wax rings that have a plastic cone like thing on the bottom that goes into the pipe a little ways for low flanges.”

“Hi all, I just have a general question as I am in the middle of replacing my rotted subfloor. The original flange still installed sat too low below my old tile, hence a wax ring leak. After I install the new subfloor, how do I raise the flange 1/2” or so to sit above the new tile? Do I keep the existing flange and add an extender? If I end up installing a new flange and it doesn’t sit flush against the subfloor, how would one secure the flange to the subfloor if there is a small gap between flan”

“I have a small laundry room in the basement that I am about to renovate/finish. I don't know what to do about these pipes coming up from the floor. I am pretty sure they are for a potential toilet and vanity. I live in a small 2 bed 1 1/2 bath townhouse so there is absolutely no need for another toilet. What is the best way to remove these? I have also read that having a drain accessible in the basement is helpful in the rare case of flooding. Is that true and if so, is there a way to cap it”

“I was trying to replace rotted subfloor under my toilet. I was hoping for advice on how to create place for fastening the new subfloor piece to. I was going to cut to the centerline on the joist at the bottom of the picture, and probably remove the subfloor until the rim joist and just place all new board till the rim joist. I am a bit lost with the left and right sides. I would greatly appreciate any advice on how to best patch this. submitted by /u/Ok-Start-8491 [link] [comme”

“In order to get proper slope the elbow has to be almost in the subfloor of the bathroom. I can add another sheet to the subfloor so the flange is near finished floor height. Unsure it this is my only option or if I'm missing something. HVAC prevents me from lowering the entire run to compensate for flange height. Also, I read I can use a regular 90 or a long sweep. Bathroom will be wet vented, any info on what elbow to use? submitted by /u/Several_Winner_9752 [link] [commen”

“Hello. Attached is the current look of my basement. Looking to finish it and I’m planning to do a 1/2 bathroom. But would it be possibly to do a 3/4 bathroom? There’s only 2 drain pipes. 1 is 4” and the other is 2”. There’s a lot of room to the left and coming down behind the wall is another drain pipe from upstairs. Instead of digging a new drain pipe for the sink, can I connect the the sink drain to the one behind the wall from upstairs? See the red for my idea. Or is the only way to do a 3/4”

“I've replaced my own toilets before on regular tile and plywood flooring, but this is in the basement on cement. I want to upgrade it but I don't want to remove it and get stuck. Any help is appreciated. Is the flange below the floor? Never seen a narrow base like this submitted by /u/Resident-Primary4181 [link] [comments]”

“Manufactured home. Ripped out old shower pan. I need to replace it, but of course that vent pipe comes up through the floor. I want to do something similar to what is there already but what fittings would I use to get that vent pipe into the dead space on the right? submitted by /u/Too-Daze-Gone [link] [comments]”

“I want to add a bathroom in my basement but the city drain is in front of the new toilet location. See sketch of what I have: https://ibb.co/r192q8N I want to add a toilet and a sink next to toilet. I can run a new vent to the sink next to the toilet. What is the correct way to vent this toilet? I'm trying to Google this but it keeps showing me sketches that are wrong once you actually look at the answer source. The sewer line is in the concrete slab and I think it's quite close to the s”

“Hi, I was replacing a toilet in a tiled bathroom basement and discovered flange had rusted through. There is a void around the plumbing and I was wondering if I should fill the void with mortar/cement etc. to support replacement flange. Do I need to do this? Other ideas? I’ll need to break some tile around the opening. TIA submitted by /u/Minimum-Key-8894 [link] [comments]”

“Hi! Wondering how extensive/possible this is? Current cast iron sewer in foundational slab is 20” off of the wall, vs 15” required for code. I know the 5” difference is trivial, but it does allow us with a lot more storage in the vanity (child’s bathroom). Most ideal option: Is it even possible to swap the sewer stack to be closest to the tub? Wouldn’t you have to account for slope to the underground sewer? Most logical option: Is it feasible to move the sewer drain over 5” in the slab? TIA :) &”

“Easier to set the flange on the finish with the finish floor. A 3” flange glues inside the 4”. A 3” 90 would put me too high aswell. Might switch it for a 3” st90 and see where it puts me height wise.”

“Doing an underground for a customer and ran tight on pitch at the end of the run. My 3x4 90 serving the toilet comes out of the ground about 3/4”. My question is if I use a 3” pvc flange and multi tool part of the hub during the finish should I be fine? They will be using tile so the floor will be coming up another 1/2” from the rough floor. submitted by /u/Upstairs-Dare-8089 [link] [comments]”

“I’m getting ready to tile this bathroom. I have a few questions. Should I tile first then install the toilet or install the toilet and tile around it? It’s a cast iron flange and one bolt is stuck sticking out, the other rusted half of it broke off while the other half is stuck in the flange. It’s slightly raised above the old tile. Any tips, trick, or suggestions are appreciated! submitted by /u/MotorDistrict5154 [link] [comments]”

“Need to replace flooring in basement laundry and attached bath because of a cast iron sewer break under the bathroom floor. Existing floor consists of 2 layers of vinyl sheet flooring. Upper vinyl layer (2000’s) glued directly on top of a bottom layer of vinyl that we think was placed in 1986 when a previous owner installed a waterproofing system in the basement, but we’re not sure. It appears that the bottom layer of vinyl was glued directly to the concrete floor with black mastic. We had PLM t”

“I am remodeling a second-floor attic bathroom in a 1928 house and ran into a plumbing layout issue after opening everything up. The original tub was an above-floor rough-in where the tub waste/overflow connected above the finished floor. I am trying to convert it below-floor tub drain setup . The problem is the floor structure. These are 2x6 floor joists , and the previous plumbing work already resulted in some questionable cuts/notching. I do not want to make the situation worse by cutting more”

“I'm adding a half-bathroom on the first floor and I have two bathrooms upstairs. The plumber roughed in the toilet and sink with the wet sink vent attached to the drainage pipe of the two bathrooms above. When the water drains, it causes the water to pass through the ventilation line. I wonder if the 2"-4" tee turned around to point down, it would direct less water to the sink vent while still allowing air in, since air can turn a sharper corner and isn't as affected by gravity”

“Hey, Just checking in to see if it’s okay to stack two wax rings for a toilet? We have lvp over older flooring (possible asbestos) and we had some struggles with the toilet flange being too low. We had 2 failed install attempts (better than wax, and regular wax). My husband had worked maintenance for awhile and installed a few toilets so we thought all was good. Had a plumber come by and help with the toilet (it is skirted so it makes it harder to line up properly). He did two was rings, I think”

“When I chipped away one section of the old closet flange, it pulled a piece of the pipe with it. Can I still put a new toilet flange on it? It looks pretty deep, but it's not all the way through. Is there anything I can fill that spot with or something? Main problem is there is no exposed pipe before the eye to the main drain, so it would be pretty difficult to cut out just this fitting and replace it with a coupling or something. Sched. 30 PVC, new flange will go over the OD of the fitting”

“I will be installing a new floor in my bathroom. How do I go about dealing with the raised floor height (around 3/4 in) and the toilet flange? Are the toilet flange extenders reliable? submitted by /u/Sufficient_Turn1657 [link] [comments]”

“here are two pictures: https://ibb.co/7NYbtD4B https://ibb.co/SS2kyMx I have a 1950s Canadian house. On first floor I have one bathroom (only one). I want to add another bathroom in basement and I am wondering how I can use the existing vent. In the basement below the first floor bathroom I have the main vertical stack which is cast iron, which is 4 inches. Very close to the ceiling joists I have a sanitary tee. the vertical part continues to the roof with a metal 4" pipe and the horizontal”

“I pulled the toilet and as expected the flange that was there was a total hack job, as was the tiling around it. So i cut out the old flange and this is what I’ working with. I’m going to strap a 2x10 to the underside of the subfloor and anchor it into the joists to give it some structure, but I was wondering what materials anyone could recommend I use to fill the space between the subfloor and the finished floor so that when the new flange goes in, it’ll be proper. Wood seems like the obvious c”

“Just moved into this new flat, genuinely don’t know what to do. Been plunging and scooping up there with gloves but no luck. The water is draining slowly but I have strictly stopped flushing just in case. You don’t have to ask how, I’m stupid and DEFINITELY never doing it again. Any advice or methods are appreciated. Have contacted my landlord but they probably won’t respond until tomorrow. Cheers. submitted by /u/kiwiiuwuu [link] [comments]”