Drain waste vent system

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4
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2answers
740 views

Is this shower trap better than a P-Trap?

Here in Brazil almost all shower and floor drains are made using a device that translate as "siphoned box" and work as a trap collecting water from the sink, tub and shower. Is that any better ...
5
votes
1answer
934 views

Should second trap under kitchen sink S-trap be there?

My kitchen sink drains through an S-trap immediately below the sink to another trap (a P? a U?) in the basement below. The drain pipe then runs along the wall till it meets the main drain pipe shortly ...
1
vote
1answer
4k views

Should a kitchen sink S-trap be replaced?

Everything I see mentions P-traps. I seem to have instead an S-trap. What are the downsides of this, and is it something that should be fixed?
12
votes
2answers
6k 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 ...
1
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1answer
536 views

Basement shower drain backing up when washing machine runs

When running washing machine, water backs up through a nearby shower drain and makes a gurgling noise. How do I solve this problem?
5
votes
3answers
6k views

Connecting a P-trap to a female drain connector in the wall

I am replacing a bathroom vanity and while I'm doing that, I'm also replacing the p-trap for the sink (mostly because I want one with a drain, but also because I have to raise the height a couple ...
2
votes
2answers
816 views

Is it possible to install a pump to fix a slow drain?

We have a combination shower/tub enclosure in our bathroom here in Norway. The floor drain in our bathroom was placed in a very unfortunate location, such that the water draining from the tub/shower ...
2
votes
1answer
191 views

I have two unconnected drain lines in the kitchen. If I start using one, can I just put a stopper on the other?

There is a 3/8" drain line by my refrigerator. I hooked up a reverse osmosis filter to the refrigerator which drains through the 3/8" line. Lo and behold, as soon as it started draining, I discovered ...
5
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3answers
5k views

Can I use a PVC cleanout plug in a Cast Iron Cleanout?

There's a cleanout plug on this pipe that I simply can't get loose. I've tried liquid wrench, PB blaster, heating up the area with a torch, everything I can think of. All that's really left is to go ...
7
votes
3answers
5k views

How do you replace a section of cast iron drain pipe?

circa 1929, Boston The kitchen sink connects to cast iron inside the wall. Just below the connection the section of vertical cast iron pipe is rotten and leaking. A couple of feet above it ties ...
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vote
2answers
2k views

What diameter pipe do I need to adjust this basin waste pipe?

I fitted a new tap and waste outlet to a small basin, because the new outlet is shorter than the old, the plastic pipework no longer reaches (see photo) I can force the parts to mate but I don't like ...
10
votes
4answers
6k views

Do I need a vent for extending a drain to a new bathroom addition?

I am building a new full bathroom on what used to be my back porch. I am planning to extend the existing drain at a cleanout and to run it outside the house underneath the floor. I need to know if I ...
8
votes
3answers
2k views

Why is sewage backing up from this outdoor pipe?

I just recently moved into my first house this morning and when I went outside I noticed this: What happened? What should I do? I have no idea what that pipe even is. I don't believe there is a ...
5
votes
2answers
12k views

Maximum run on drain?

I'm planning a reconfiguration of my basement and want to move both the powder room and w/d to new locations. The powder room would be close enough to the stack not to worry me, but I'm looking at ...
4
votes
1answer
2k views

Do waste water pipes for kitchens and bathrooms require a minimum slope to avoid clogging?

When I had a dishwasher installed, the plumber refused to install the waste water pipe horizontally, saying that this would get it to clog all the time. He left a roughly 1:10 slope on it. I thought ...
4
votes
1answer
764 views

How can I install a J-Trap for a bathroom sink with limited space?

Well, it was my first difficult handman project and I got this far... Below is a photo of my installation right now. Every single diagram I've seen has the J-Trap facing down. Is there any way ...
1
vote
1answer
804 views

How do I find out if Air Admittance Valves (AAVs) are allowed in my municipality? [closed]

I saw Richard Trethewey of Ask This Old House install an AAV as part of a kitchen island sink system. I thought I might be able to use one for the water line for my washing machine. I'd like to ...
4
votes
3answers
372 views

How do I connect to a dishwasher bushing?

I just bought a new dishwasher for a newly renovated house that I just bought. I am trying to install it myself. My sink drain pipe has one of these sticking out the side above the U pipe thingy like ...
4
votes
1answer
445 views

How far can I move my bath tub trap from the vent?

I am remodeling the master bath and I need to relocate the bath tub. I will be extending the trap about 3-4' from where it is now. I'm wondering if I need to relocate the vent pipe as well. How far ...
3
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3answers
2k views
6
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1answer
2k 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 ...
3
votes
4answers
3k views

Can a plumbing vent go “up” and then back “down” to the connection with the vent stack?

I am changing the location of all the fixtures in my bathroom. This move will put the toilet and sink on the opposite wall from the stack. I was originally planning on running a vent up the wall ...
4
votes
1answer
715 views

Is there a shower drain pipe in this picture?

I'm certain the 3" pipe on the left is the toilet drain (it is about 12" form the wall and has a rounded cap on it). I'm guessing the shorter 2" capped pipe on the right, up against the wall, is the ...
0
votes
1answer
3k views

Why does my kitchen sink smell when the washing machine is running, and what can I do about it?

I live in a flat, on the second floor. When we run the washing machine (which is connected to the kitchen sink's plumbing) it gurgles a lot and often produces a nasty smell. Why is this, and how can I ...
7
votes
1answer
3k views

New Vanity: Sink Won't Drain Completely

My wife and I just replaced the vanity in our bathroom. To fit the new sink, we had to cut some new PVC. Here's a picture. All the plumbing works, without leaks, except that it will not drain ...
5
votes
3answers
6k views

Do I need a separate vent stack for my kitchen sink?

The drain line from my kitchen sink drops down through the basement, into the basement floor (Concrete), and I assume under the floor to the main sewer line. The sink tends to drain slowly. Should I ...
6
votes
1answer
850 views

How do I replace a section of a 4" cast iron pipe with PVC?

I am working on our upstairs bathroom and plan on moving some of the fixtures around to a different side of the room. This means I need to make changes to where the drain comes into the stack (I want ...
8
votes
2answers
5k views

How do I install a sink in a room that doesn't have a drain vent?

I want to install a sink in my attached garage where there is no existing plumbing. I will be running new water supply and drain pipes to mains behind a nearby wall. I'm concerned I will need a ...
3
votes
1answer
522 views

Can I use a 1 1/2 vent for a toilet (3" drain) in CA (not a went vent, no other fixtures on it)?

Most of the info I have on code implies this would be OK, but one item I have says that a 1 1/2 vent can only serve 8 "non-WC" fixture units.