venting

I'm adding a bathroom in a recently-enclosed garage. Instead of busting up the concrete and trenching to the septic tank, I'm feeding this into a macerating toilet, which I'll then tie into a nearby line that goes to the septic. My question is about venting. I've roughed in a configuration, but...

Hey guys, thanks for the forum, it has helped me countless times. We have a question about wet venting. Every image in the plumbing codes we can find shows an offset toilet when wet venting. We want to know if there is any issue with connecting to a line directly underneath of the toilet. It...

Hello everyone, I have been reading on here for a while. I love this forum! We are adding another room in our basement and needed to move some pipes over. Is this setup correct? I just duplicated what was in place already just literally moved it over away from the window edge, over about 10"...

I live in a 4 story condo with drains done in galvanized pipes that turn into PVC within the units. If I add a washing machine and just stick the draining into my existing shower drain that's vented with the galvanized pipes, do I have to worry about venting it?

First pic shows what I believe would be a standard install. P-Trap + P-Trap elbow, connected to a vent. Second pic shows using a sanitary tee RATHER than the elbow that came with the P-Trap, functioning as both the P-Trap elbow and as the vent coming out the top. Are there any issues with this...

Im in CO using IPC. Can I run this group using one 2" vent? I would just run a separate 2" for the kitchen but I have a roof valley and would need to off set it anyway. Does the WC need a re-vent? I have 19 DFU's in this group, its a new construction ranch with a basement. I appreciate the...

Hi folks. I am renovating a bungalow and I have removed the old 3” cast iron stack various piping on the main floor. I am going to rebuild the stack using 3” ABS. There is also a 2” drain into the basement floor that I will be using for a couple of fixtures. I’ve taken a shot at designing the...

We just moved into an older home and I want to move the laundry to a different location in the basement. I have been doing quite a bit of reading and found some excellent resources on both this forum as well as others and I think I have it figured out but I was hoping I could get a second...

Hello All, I am a first time poster that stumbled across this forum in doing some research for my project. I did not find a question quite like mine so I thought I would post details of my situation and ask for help from the experts on this Board. I am finishing my basement in Loudoun County VA...

Hi all, My question is: Is there an advantage or disadvantage to using a sanitary tee over a wye + 45 vertically for drain/venting purposes? Do wye + 45 fitting have any purpose in a stack application? I checked the forums and have never seen this discussed. I know sanitary tees are never...

Hello All. I have a one-pipe steam system. I have a two story cape house from the 1940's. Last heating season, I replaced the second floor air vent on the radiator with a hoffman #40. I was really impressed how quiet it was. This heating season I decided to replace the remaining six radiators...

Hello, and thank you in advance for any help. I did read through other threads before posting, but didn't find anything related to my issue. After a long bout of rain a few weeks ago, I noticed my toilet bubbling when doing a load of laundry. The toilet bubbled a bit every time the washer...

I am putting in 2 new furnaces and a new water heater into the same utility room and need help understanding a safe and efficient way to vent all 3 appliances. Furnaces are both 96% efficient category IV. 80K and 120K BTUs. WH is a Rheem with power vent, 0.67 efficiency. I have an existing...

Hey everyone, I'm new to this forum and I'm having a plumbing nightmare. I just bought this mobile home about 6 months ago. Recently someone pointed out to me that the washer was draining underneath the house. I didn't notice because I barely ever go on that side of the house where the water was...

We will be replacing our existing over sized boiler with a new higher efficiency boiler and want to reuse out existing chimney flue to vent the exhaust. Since the new boiler will produce lower exhaust temps, it was recommended that we use a 4" liner for the existing flue with 4" B-vent between...

Hey guys Ive been thinking of adding a shower in my basement bathroom. I have a toilet coming right off the main 4" drain. The 4" IRON comes out of the floor into 3" PVC and goes up to the roof. Im thinking of replacing the old iron toilet elbow with a new PVC 3"x3"x2" and running with 2" PVC to...

Okay so my washing machine is overflowing the standpipe when it drains, it was doing this a while ago and then it stopped but now it's doing it again. The washing machine is on the main floor in the middle of the house (it is supposed to be for a stackable but my dryer is in the basement), the...

So I am working through replacing all of the cast iron and galvanized steel drain and vent piping in a home I just purchased. The cast is cracking and the galvanized is rusting and joints are falling apart. I won't even get started on the clogged supply lines, that is the next project. I have...