All Questions
Tagged with dwv or drain-waste-vent
417 questions
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43
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Which pipe route is better for my sink relocation? [closed]
I am relocating my sink from a back wall to a window. Due to space constrains, I want to avoid altering the plumbing below the ground level (though I have a basement). I have proposed two pipe ...
- 831
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0
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16
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Correcting Existing Waste Water Drain Setup
Relevant background info: 200 year old stone farmhouse in PA. Built into a hillside so the first floor is also the basement. At the rear of the house, the second floor is ground level. The main soil ...
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34
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Is this a legit wet vent?
This is a follow-up from a previous question, I was encouraged to ask this revised question separately.
I am curious whether the venting on this set of connections meets code as a wet vent or not. ...
- 370
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83
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Does this two bathroom plumbing design respect physics ? Does it meet code?
I have a symmetrical design for 2 bathrooms, where each one has a toilet, a sink, a clothes washer and bath tub.
I have attached 3D drawing of the circuit
The vertical vent pipes shown are inside the ...
- 123
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34
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Saniflo for bathtub only
I am adding a bathroom to my basement and I already have rough in plumbing for toilet and sink. If I was going to add a bathtub the saniflo will drain and vent to which pipes in the picture? My best ...
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1
answer
90
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Is a lot of smell from a septic system access panel normal?
We just had a new septic system installed. I expected there to be gas coming up in one bathroom, given the shower and sink don't have drain traps installed. The smell is unfortunately more intense ...
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2
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110
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What is allowing septic plant smell through shower drain?
In our very old stone farmhouse, there is a wetroom downstairs with a shower drain. Ever since having the septic tank emptied, and then replaced with a treatment plant, a foul stench comes from the ...
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1
answer
61
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Questions about bathroom sink drain and vent
I am doing a bathroom reno and have three questions about venting and drains.
#1 - There was vent left open in the wall. It is on the left facing down. Is it appropriate to just cap that and leave it ...
- 1,115
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2
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129
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Washing machine drain pipe blowbag
I basically have the same problem with the opposite situation to Washing machine drain pipe backing up
I had a newer washing machine that never backed up, but like most new things it was engineered to ...
- 903
2
votes
1
answer
91
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Using Double Sanitary Tee arms for sink drain and toilet vent
I am having to re-plumb my bathroom, and am trying to follow IPC 2018 as best I can (I live in Vermont).
The current Stack Vent, which exits the roof, is 3" copper and currently only vents the ...
- 123
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24
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Drainage: Gutter drains good enough for a DWV system?
Moved into a house and trying to figure out the drainage situation, the top bathroom and kitchen both need water traps as a smell comes up from them. There is an extension to the lower bathroom where ...
- 101
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49
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Cover drainage which is oval shaped
Waste pipe from laundry sticking out on the wall and water goes to drainage pipe which is oval shape. I am afraid that stone might entered inside the pipe so I checked online the oval grate or dome ...
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35
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Options to address this venting issue where the washing machine pulls the water from the shower p-trap
I installed a drain pump system because our washer would never drain the water up fully and left the clothes gross. While the pump works amazing it now forces so much water through the 1.5" pipe ...
- 505
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45
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Slow Draining Bathroom Sink, help
My sink drains very slowly. It will fill up while washing your hands and take about a minute to clear. The tub/shower in the same bathroom drains fine. I removed the trap and did not find any blockage....
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1
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211
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Bathroom Plumbing Wet Vent Design
I'm adding a new bathroom to my home which includes a toilet, shower, and double vanity. The 3" drain line will WYE into the main right before exiting the foundation (Not shown). I have enough ...
- 182
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1
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136
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'DWV' PVC pipes ~ Is it ok to have an open inlet in the basement?
Our basement has a openings in the PVC drain-waste-vent (DWV) system, for a washer and water softener to drain.
I just realized there's no check valve on this or anything to prevent a sewage backup (...
- 933
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42
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Moving a toilet, tying vent to old stack under subfloor or in attic
I’m moving a toilet in a bathroom. It’s essentially just sliding down the main sewer line. The original vent is a 5” cast iron pipe that exits directly through roof. The vanity and tub originally tie ...
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1
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2
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172
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Kitchen sink water not draining though there is no clogging
I'm reaching out to you all in a bit of a panic as I'm facing a perplexing issue with my kitchen sink and dishwasher. Recently, I noticed that the water in my kitchen sink was not draining properly. ...
1
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1
answer
109
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Can I eliminate a shower drain by connecting to another stack?
I am remodeling my basement bath that the previous homeowner installed (concrete subfloor).
Their shower pan was placed on top of a small, raised platform (~4" tall) which I always thought was ...
- 121
1
vote
0
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51
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Tying in to vent in basement
What would be the right way to tie into future vent in the basement?
I assume F.V. in the picture is Future Vent - especially as its in the basement, so I would hope nothing is "on" it other ...
- 11
1
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2
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124
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Is this safe for venting sewer gas?
I have a PVC vent stack that arises from the concrete floor of a one-level home, and rises straight up through the ceiling, into the attic, and out the roof. The stack is currently in a wall.
I want ...
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1
answer
52
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Is copper DWV "hard-temper" pipe type M?
I was looking at an FNPT copper adapter online (1-1/2 in. Copper DWV Cup x FIP Female Adapter Fitting) which says "Use with DWV hard-temper tubing" and I'm not sure what hard-temper tubing ...
- 2,032
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108
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Can I use an AAV instead of a vent pipe for a remote sink?
Our General Contractor added a "temporary" sink in our lower level during our kitchen remodel on the main level. It is the perfect location for a kitchenette downstairs, which has 2 ...
- 11
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1
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106
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What would cause a gurgling tub after flushing toilet?
My house is a 1929 colonial. We installed new toilets when we moved in (1 in a second story full bath and 1 in a first floor half bath) and after that point, we would get gurgling in the tub upstairs ...
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60
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Plumbing Vent(s) for master Bath
I am currently adding new DWV plumbing for an existing master bathroom space. The space already has a WC and shower with proper drainage and venting. The new addition consists of a soaker tub between ...
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1
answer
134
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DWV vs Schedule 40
My downspouts flow into drain that moves rainwater away from the house. I'd like to extend that drain further out. Existing pipe is Schedule40. There shouldn't be any loads going over the new section.
...
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1
vote
1
answer
148
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Does it matter where I reduce a drain pipe?
Central Valley, Hanford, California
I want to reduce a 4" line to 3" .. Is it best to reduce it horizontally or vertically, does it matter where I reduce?
I was thinking of reducing right ...
- 183
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1
answer
133
views
Black ABS DWV cleanout plug lubricant?
What is the best lubricant for a threaded black ABS DWV cleanout plug? Needs to be long-lasting and not deteriorate the ABS.
1
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0
answers
212
views
Single 2x8 Wall For Back-to-Back Bathrooms with Wall Mount Toilets
House has 2 bathrooms with mirrored fixtures on either side of the “wall”. Currently, this is framed as 2 separate walls with a small chaise in between. Due to the small dimensions in the owner’s ...
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59
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Any code issues or other I should be aware of when rerouting a drain?
Central Valley, Hanford, California
I am wondering if there will be any code issues rerouting a drain in the center of the kitchen (4" cast-iron) to an exterior wall, where a new wall will be ...
- 183
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3
answers
1k
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Can a 2" pipe connect vertically to a 3" pipe before it hits the vent?
I have about 2' of 2" pipe coming from my shower. It's well within the required 5' before the 3" vent stack. Can I tie it into the 3" pipe coming from my toilet with a sanitary tee?
In ...
- 93
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1
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52
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My toilet wont flush properly,but it does flush properly like 1 out of 10 flushes
Okay, my toilet onny flushes once properly out of like 10 to 20 flushes. I’ve already checked the flapper, toilet handle and chain, and checked and tested the fill valve and float. It all is fine, but ...
- 1
6
votes
1
answer
150
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Does this kitchen drain plumbing look correct?
I'm not a plumber by any means, but my kitchen renovation is already very over-budget so figured I'd attempt to connect my sink plumbing myself. I haven't glued this together, it's just dry fitted, ...
- 79
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2
answers
200
views
My toilet burps air from the toilet tank inlet, not the trap/waste line
My toilet burps air when flushed. The burp comes right at the beginning of the flush. The air is coming out of the inlet from the toilet tank. The air is NOT coming from from the trap/waste line.
...
- 1
1
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2
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258
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Have I properly vented my bathroom remodel?
4 years ago I purchased a 30yrs abandoned home and started doing its remodel. The house is 1 level on a concrete slab and all the plumbing was Cast Iron for drains and galvanized pipes for water. I've ...
- 11
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2
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607
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Why are p-trap j-bends reversed depending on application?
Whenever I install P-traps under sinks (eg, usually inside a cabinet or the like, but outside of a wall, using threaded fittings), the asymmetrical J-bend has the straight side towards the drain and ...
- 237
5
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2
answers
1k
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Is the DWV Tee in this washer service installed backwards?
This is the rough in in question. On the washer service, for the Oatey Sure Vent, is the DMV Tee installed facing the right direction?
- 51
0
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1
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90
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Bathroom plumbing -Is it right?
My 1940 bathroom plumbing was just replaced and I am questioning whether the set-up is proper. Here is a picture. Long 2” pipe at bottom is for the bathtub/shower, fixture at top left is the toilet ...
- 21
0
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1
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238
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Toilets + sinks leak onto ceiling below; showers do not
Our house has two bathrooms (A and B) upstairs that are back-to-back on the floor plan. Both have showers, sinks, and toilets.
One day recently, when I was in an upstairs bathroom (A), the toilet in ...
2
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1
answer
1k
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Basement bathroom rough in drain layout
I have broken up the concrete in my basement for a new bathroom. There are drains that have been roughed in by the builder, but the layout won't work for us so I'm going to rearrange.
Hopefully the ...
0
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1
answer
232
views
Drain cleanout requirements only count horizontal angles?
I've always wondered why drain, waste, vent (DWV) requirements have horizontal angle requirements, but not vertical. What is to prevent me from using a series of 45 degree elbows and exceed 135 ...
- 237
1
vote
1
answer
70
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Washer and Dual Basin Plumbing
I recently purchased this house and noticed the plumbing for the washing machine and basin in the basement was partially removed and capped. I’ve been trying to research how I can route the plumbing, ...
- 21
2
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1
answer
110
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Does a lowered sink drain pipe require a new vent loop?
I needed to replace my dishwasher, and found out that the new one is a bit bigger and does not fit under my counter... There is a 1 1/2" horizontal pipe that passes in front of the wall, under ...
- 123
3
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2
answers
481
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Plumbing vent odor on rooftop deck
Just bought a place that came with an accessible rooftop and there's a plumbing vent that creates a pretty noticeable odor when near it. Our inspector provided a recommendation to put the vent cap on ...
user173121
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1
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6k
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How can I clear a clogged drain vent without going on the roof?
I seem to have the classic problem of a clogged vent; flush toilet and shower drain "gasps".
Is there a good alternative to going up on the roof and clearing it from there? What's the ...
- 33.2k
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1
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942
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What is the height for the washer box and p-trap? if the finish floor is in the garage 2ft under from bathroom floor. does it work?
Washer machine in the garage is 24" lower than the ff from the bathroom, I'm installing a p-trap 6" from the bathroom finish floor. What is the height of the washer box that needs to be? The ...
1
vote
2
answers
114
views
How do I trap and vent this new drain line?
I am re-working my laundry area. Previously, it had only one device connected to the drain line - a single sink, into which the washing machine (and everything else) drained.
Now I would like to add a ...
- 981
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1
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4k
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Can a vent pipe be completely horizontal and level?
I don't know why I am struggling to mind a definitive answer on this. Once a vent pipe is above the flood line of fixtures and goes into the attic, can it run completely level or does it require the ...
- 4,384
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168
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Which specific fittings can be inserted into a 4" SDR-35 floor pipe without cutting the concrete around it?
We're interested in installing a clean-out and drain (separately) into our basement floor pipes installed as such:
4" SDR-35 PVC pipes
inner diameter is 3 15/16", outer diameter is 4 3/16&...
- 101
0
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0
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68
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Branch vent in cold ventilated attic space
We have added a garage with a bedroom and bathroom above it. The bathroom obviously requires ventilation, so I am planning a branch vent from the main stack. The branch will run through the ventilated ...
- 169