Drain waste vent system

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Vapors from washing machine stinking the garage and kitchen

This shows that there is a trap in the washing machine drainHow do I hook up a washing machine drain line to this box?. How do I clean this? Other traps under sinks have threaded connectors so I can ...
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3answers
43 views

how to extend washing machine drainage hose such that it doesn't leak

I have a portable washing machine that I want to keep in one of our bedrooms and thus need to extend the stock drainage hose. My current solution is: buy the necessary length of clear plastic tubing ...
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1answer
63 views

Why does this sink gurgle?

This is the drain and vent for a pair of kitchen sinks, one directly above the other (2 separate apartments). (The larger pipe to the far right is a roof drain that doesn't join until underground.) ...
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2answers
125 views

Manifold all vent pipes in attic to have one pipe into roof

I'm building a new house, 2 1/2 baths, laundry room & kitchen. What size vent pipe would be needed to manifold all vents into one?
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2answers
1k views

How vent bathtub trap when drain is routed under tub, directly away from best vent location?

I am … very slowly … thinking about replacing the probably circa 1950's galvanized steel drain pipes in my basement with PVC. In particular, I would like to replace the drain line under ...
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4answers
91k views

What could cause bubbling toilet when the shower or sink is running?

One of the two toilets in my rental house is bubbling when the shower or sink in that master bath area are on. In the past, about 6 months ago, I have had plumbers and rotoruter out and they could ...
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1answer
128 views

Pre-made rain cap for plumbing vent? (Preventing rust-through of galvanized pipe in the walls)

Are pre-made rain caps made for plumbing waste vents? My house was built 1938 with galvanized DWV pipes which have a series of elbows before reaching the roof. All such elbows retain a certain amount ...
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5answers
32k views

Sink tailpiece doesn't line up with trap

After installing a new bathroom sink, the drain tailpiece doesn't line up with the trap coming out of the wall. I've seen flexible accordion hoses for this, but I think that violates code (P3002.3.1)....
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9answers
62k views

How can I prevent or remedy “bio slime” accumulation in a sink drain?

The drain in the sink which we use for mouthwash consistently gets clogged by a very repugnant slime. I've tried all the common drain unclogging products (Drano, Liquid Plumber) as well as some non-...
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3answers
567 views

Does my new soil pipe need additional venting?

I'm moving my bathroom to the adjacent corner in my house, and would like to know if I need to vent my soil pipe with my planed system before it reaches the existing external soil stack. Going ...
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5answers
66k views

What causes tub drain to gurgle when toilet flushed?

Recently, the drain in my second floor tub makes a gurgling sound when I flush the toilet, which is located right next to the tub. They are obviously on the same drain line. I know that there is a ...
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2answers
305 views

How can I hide a sewer 'Candy Cane'?

I'm in the process of buying a newly built house and today the builder had work done on the sewer. When I saw the house I couldn't believe that they placed the 3-4" high 'Candy Cane' smack dab in the ...
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2answers
5k views

How should I fill in a trench left by replacement of a sewer pipe?

I recently had my main sewer pipe that runs underground to the main pipe replaced, and I left it open for a few days to check everything is okay, and it seems to be. This is just a small run of pipe, ...
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3answers
4k views
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22 views

Could I make a turn in the opposite direction in toilet drain line? [closed]

I'd like to connect a new toilet in the room next to the current toilet, but not the same wall. I have a problem running it to the drain line using only a 90 turn at the connection because there is a ...
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3answers
392 views

House has no plumbing vent — is this a solution?

I've been living in a fixer-upper for a while... I've been fixing a lot that was previously done wrong. I've finally gotten around to ripping out our first floor bathroom (two full bathrooms) and I'...
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1answer
64 views

Minimum Height for Vent Pipe

Is there a minimum height for the the vent pipe circled in the image?
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1answer
467 views

Utility Sink and Washing Machine Drain Pipe

I am installing a utility sink in my basement and need to rework the drain pipe and standpipe for my washing machine in the process. Above is the original drain pipe and stand pipe that the washing ...
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1answer
41 views

Is there any way to get around a high waste outlet pipe?

I've recently replaced my ancient sink with a new one, the taps don't leak it's sealed to the work top and looks great but the waste out let pipe was just below the old sink and the new one is a ...
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1answer
48 views

How to install DWV piping for new toilets added to current system

I am wanting to install a toilet in a cabin that is about 150ft uphill from my home. So waste will run downhill, thank goodness. And about 60 ft from my home on that same run I want to install another ...
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3answers
1k views

How can I stop this drain pipe from backing up?

In my basement laundry room is (to my knowledge) the only drain pipe in the whole basement, which hooks into the end of the main line as it exits the house and heads to the septic tank. When we moved ...
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1answer
58 views

Do I have to cover pipes under slab?

I'm adding a new toilet in basement and would like to know if the (drain) pipes that will be buried under the slab have to be covered with something else exept of the gravel (like wrapping them or ...
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1answer
142 views

Toilet Still Gurgling

Three months ago when we moved into our home, the toilet started gurgling so we had septic tank pumped, and drainline from house to septic cleaned out. Two months ago, happened again, so we tried a ...
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49 views

Are drain-clearing bladders safe?

I advised a friend to use a drain bladder to clear a sink clog. Turns out there was a vent that didn't connect to the main vent stack--it just terminated inside the wall. So she put a bunch of water ...
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5answers
1k views

Toilet gurgling when another one is flushing: 6-way joint

I have 2 adjacent bathrooms, with toilets opposite of each other. I recently upgraded one older toiled that took a minute to flush with 3.5 gallons of water to 1.2 GPF model with "aquapiston" ...
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2answers
415 views

What is the Pressure Number (PN) of Shedule 40 and Schedule 80 PVC Pipe?

Does anybody know the pressure number (PN) of schedule 40 and schedule 80 PVC pipe commonly sold in the United States and Canada? The PVC in my part of the world is classified by PN number, and I'd ...
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2answers
595 views

combo tee vs. tee wye

I saw on wikipedia a mention of "combo tee" and "tee wye" is there a difference or are they the same? I've also heard of something called a "sweep" or "long sweep" is that related here?
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4answers
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How can I move a toilet sewer drain in a concrete floor?

The toilet in one of my bathrooms is too close to the shower. I have room and would like to move it about 2 feet. It is also a 14" rough-in and it's hard to find toilets in that size, that are not ~$...
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5answers
1k views

Why do I have a vent stack if none of my fixtures are vented?

As far as I can tell, none of my plumbing fixtures are vented. I have a double-sink in the kitchen, but no vent pipe. My washroom (photo here) similarly has an s-trap. Same thing on my washing machine ...
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1answer
7k views

How can I lengthen my vent stack and are there any negative effects in doing so?

I have observed that when we receive a lot of snow here in Ontario, at least one of the drain vents on my roof is covered by snow. While after one winter in the house I have not yet observed any ill-...
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2answers
16k views

Does a plumbing vent need to penetrate the roof? (Can it penetrate a wall?)

We're going to move our washer/dryer to the garage (the front loader needs to sit on concrete to keep it from shaking our house to the ground). I'll need to add a washer drain to the garage for the ...
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2answers
198 views

Repairing leaking DWV vertical 3" thin wall PVC

While painting, my wife discovered some mold on top of the baseboards, and being curious I investigated. What I found pulling the baseboards is they were covered in black mold on the backside, as well ...
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1answer
47 views

Bathroom sink occassionally backs up into tub

My bathroom sink and tub are directly adjacent. The tub drain appears to connect to the sink drain line. Photos follow. Under normal use, there is no problem and both the sink and tub seem to work ...
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1answer
49 views

fixing lead boot on waste vent

The lead boot around the waste vent has worn away. I have no idea how it happened, but I need to fix it. I was thinking of just buying another boot, cutting the bottom off, cutting the top of the ...
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0answers
97 views

Water level in kitchen sink drains is too high

The water level in both kitchen sink drains is close to the top. I can use the garbage disposal and other drain and the water drains out quickly but backs up slightly when the opposite drain is used ...
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2answers
119 views

Tub drains very slow

I've been trying to fix a extremely slow draining bath tub for awhile, but still can't get it right. Here is the work that's been done: Ran 25 feet of cable from a power snake (drill powered) 3x's. ...
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1answer
198 views

Unclogging bathtub with an external tower drain

I have a clog in my bathtub. There is no visible overflow and it has an external tower drain. When I try to snake through the tub drain the snake comes up the external tower. Do I need to remove the ...
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3answers
7k views

How to fix broken toilet flange from over tightened bolt?

I broke my PVC toilet flange when I over-tightened the bolt used to secure the toilet to the flange. How do I fix this without replacing the entire PVC fitting? This PVC flange is glued to the drain ...
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4answers
42k views

Why are there bubbles in my bathroom toilet and sink?

I have had a lot of really odd things happen in my bathroom this weekend and I want to make sure it is nothing too serious. Ok so when I was taking a shower I heard the toilet bubble up. A few ...
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2answers
1k views

Covering / Cap over DWV vent pipe

I've eliminated a DWV vent pipe during a bathroom remodel (consolidated fixtures and went from 2 vents to 1) but I don't want to mess with roof patching/repairing if I were to undo the penetration of ...
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1answer
86 views

Toilet bubbles and gurgles after capping vent stack

We had a bad wax ring on the toilet so we replaced that, then we decided to replace the toilet with a newer model. Now the toilet doesn't flush right--sometimes we have to flush it a couples of times ...
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3answers
18k views

How do I replace this cast iron toilet flange?

I have a big old gawd awful cast iron (at least I think it's cast iron, the house was built in 1940) toilet flange that is in sorry shape. See? There will never be a better time to replace it - as ...
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2answers
754 views

Why is my bathroom drain stinky even after being cleaned out?

My bathroom drain stinks! The smell gets worse after you run the water. My husband cleaned the P-trap and I cleaned the drain itself. I used baking soda and vinegar about a month ago and it worked, ...
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2answers
139 views

How to plumb a washing machine 30 ft from the waste stack?

I would like to install a washing machine in my basement, about 30 feet from the main waste stack. The stack is fully accessible and already has a capped 2" port about 8" above the concrete floor. ...
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2answers
123 views

Is there a required spacing between waste vent line and chimney?

This question seeks answers with one of the following as supporting evidence: International standards, other standards widely recognized in multiple areas of the United States, or sound building and ...
2
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1answer
129 views

What's the right way to clear a vent pipe?

There have been a number of answers pointing out that draining problems may be a blocked vent pipe rather than a clog in the drain per se. But I don't think there's been a clear answer on whether ...
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0answers
75 views

What's so bad about single stack DWV systems?

We're in a region which allows single stack DWV installations in multi-storey buildings. In other words, a single large-diameter vertical pipe that serves as both discharge stack and vent for several ...
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1answer
77 views

Add drain line to existing Island fixture vent?

In CA, would code allow for a drain line to be tied into the vent line shown at the location of the red arrow below? Single family home. Happy to draw a picture of where that vent lines goes, if ...
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0answers
9 views

Appropriate vent for 2 toilets [duplicate]

I'm researching the way to properly re-plumb my 2 bathrooms, and trying to figure out the best way. Specific question relates to this section of the code (Illinois 890.1320 l): Branch wastes and ...
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69 views

Is this a proper way to connect main vent?

I'm researching the way to properly re-plumb my 2 bathrooms, and trying to figure out the best way. Specific question relates to this section of the code (Illinois 890.1450 e): All main vents or ...