dwv

3" pipe coming over the wall. Are either of these layouts incorrect, or either one preferred?

Hello, I am building my own home in rural Idaho. I am looking for some expert feedback regarding the DWV layout I have drawn up for the place. I attempted to post this a few days ago, but did a bad job getting a good pic of the layout posted with this request. I'm hopeful I am doing a better...

Hello, I am reaching out for help with the layout for my DWV layout in a new construction. I am building my own home in rural Idaho and want to make sure I am keeping it simple and efficient... and to code. I am seeking the advice of the experts! It will be a small, simple home. The compressed...

The town requires an air pressure test to hold at 6 PSI for a few hours, maybe about 4 hours. I set it to 6 and after about 30 minutes it is down to 4 to 5 psi. I can't find the leak anywhere by listening or by using dish soap. I am seeing there are ultrasonic detectors $50 on Amazon, but I...

I'm converting my garage to an ADU (aka mother in-law home) and as part of the project, am connecting to the sewer in our house about 25' away. Not having designed a 1st floor bath on a slab before- I'm wondering if there is a standard for how deep I should be trying to get the sewer line when...

I am remodeling my kitchen and have a new 10 inch deep stainless steel sink to install with a garbage disposer. The current/old sink drain is too high for the new deep sink with disposer and I am working through options to lower my stub out. The drain currently runs through the stud bays in an...

Hello, New here and I have had a lot of building experience in my 74 years. I do have a question though -- A new house is being planned and there will be three baths basically stacked from the basement level to the third floor. So there will be three bathrooms total. The basement has a...

If I remember correctly, 45 degrees is considered vertical, so it seems like I should be able to use a 1/4 bend (with a heel to vent) into a wye like this. Does this work for a WC?

How the heck do you stop the brushes snapping off the lid?

I have all of my vertical pipes capped except my laundry drain. I have a test plug that blocks the entire system from the existing drain. There are 2 vents, 1 that connects to an AAV and one that connects to an existing vent that exits the roof. I thought I could fill my system via the laundry...

Hi there, Long story short - I'm looking to have a single to double lav conversion re-worked to try to regain some integrity into my load-bearing wall. The plumbers hired by the contractor formerly working on this project mistakenly routed the 2" vent through the 2x4s, when they should have...

I am in the process of adding a washer and dryer on the second floor of my two story home. They will be located on the other side of the wall from a bathroom group (tub/shower, toilet, and lavatory) so I have relatively good access for routing the drains and supply lines. My question is what is...

Hi, I'm planning to renovate a bathroom in the basement. I found this video which explains the exact DWV layout I need, but the only problem is that my bathroom is on a concrete slab so the cleanout location in the diagram won't work. My cleanout obviously needs to be above the slab, but I'm not...

Hi All! With lots of help from you all, I've prepped for my pressure test on the DWV rebuild of this 1938 house. With the exception of 2" and 4" threaded clean-out plugs, my only leak is a slow drip at the joint circled in the picture, at the base of my attic vent stack. Since this is the...

Hi all, hope everything is going well. This is in WA state. I am adding a 9' x 3' full bathroom and stacked washer/dryer to a finished space above the garage. I have attached the layout of the space and my proposed plan for waste lines and vents. Is the venting I have adequate (or...

I discovered a leak in my laundry closet, and on tearing the drywall discovered a crack in the tee in the vertical drain vent stack. The origin of the crack seems to not one but two drywall screws which the folks remodeling the bathroom (on the other side of the wall) for the previous owner...

Hi: I am changing my 2nd story tub from a LH to RH drain, so you don't have climb in between the toilet and the tub to turn on the shower. Originally all the plumbing was along one wall with lav, toilet and tub in a row. When I opened the walls, I was expecting to see vent stacks for all 3...

Any suggestions or comments are greatly appreciated! I attached images of the original configuration in case it was useful and a potential new plan. While renovating a second floor bathroom I am going to be swapping the location of the sink and stand up shower (and replacing the stand up...

Hello, I have made use of the professional advice goldmine on this forum many times in the past, but always by reading existing threads. With my latest plumbing project I figured it's time to post a thread of my own! I am firmly in the DIY class, and I would love advice from others out there...

I am adding a new master bathroom to my house and wanted some feedback on my diagram before I start gluing the drain and vent pipes together. I ran a new 3" drain to my basement and I am going to tie that into the main sewer drain. Then upstairs it goes to a 3" San tee directly to a 3" 90 to...