Drain waste vent system

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Toilet Backing Up and Bubbling?

About two weeks ago my sewage ejector pump died and had a massive overflow in the basement. I replaced the pump but I am now noticing that the toilet backs up. I am also noticing that when I take a ...
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1answer
47 views

Can I move this drain line from the wall to the floor?

Here is my kitchen sink drain configuration: (The horizontal run after the trap is actually pitched correctly, not as drawn.) The portions inside the wall are galvanized steel pipe. Under the sink, ...
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1answer
54 views

Can vent plumbing be behind a double wye?

I am trying to figure out how to lay out my basement plumbing, and I wanted to use a double wye to connect my shower, toilet, and sink to the existing waste system in the house. My question is, am I ...
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2answers
50 views

Vent below window

I have a waste vent terminal that will be 2 m below a window (2 storey house). Can I leave this terminal there, or should I extend it above the windows (adding 3.5 m to it and having an ugly pipe on ...
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1answer
78 views

Basement Bathroom Rough-In Configuration

I'm investigating if I can use an existing basement bathroom rough-in as is. To date, everyone I've asked has said the concrete needs to be broken up and the plumbing re-arranged. I think the tub ...
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1answer
42 views

Prevent future holes in PVC vent pipe in walls

Is there any practice or products out there to help protect a PVC pipe where someone might drill into the wall in the future for hanging stuff or something. I'm considering just using metal piping for ...
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2answers
99 views

Graywater overflow plumbing… which design to choose?

I'm working on replumbing my utility room and I'm adding a graywater system. Local codes are remarkably permissive but require an overflow to the sewer/septic system in case of graywater blockage or ...
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2answers
63 views

Does my vented septic tank even require traps and vents near the actual fixture connections?

My home has a septic system with a vented lid to let the sewer gasses escape from the tank itself. As a result, it seems like far less gas (if any) would travel up the waste plumbing and exit through ...
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11 views

Water softener diposal pipe/field

What is an effective way to dispose of the waste water following regeneration/washing out of a water softener?
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1answer
56 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
80 views

Is it OK to have the kitchen drain and roof vent on the same line?

Can the kitchen drain wet vent be on the same vertical pipe as the air vent going out the 2" roof? I also have a sanitary tee attached on the top that attaches the vent for the washing machine. Just ...
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1answer
370 views

Why do I hear water running in my bedroom wall when faucets are on or when toilets are flushed?

I've lived in my house for almost 9 years. I recently had my septic tank emptied. I've noticed that about a few weeks after emptying the tank that whenever I flush or when the water is running in the ...
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3answers
206 views

Do I need vents to devices in the primary waste line?

Assuming the system below (solid is waste, dotted is vent). Do I need vents for the Sink C, Toilet C and Toilet B? They are connected to the primary waste line which is vented at the end of it. Sink ...
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3answers
311 views

Question about my sewer stack situation

I just purchased my first home with limited knowledge on many things. At one point my house was outside city limits (using a well and septic) and has since been annexed into the city and brought onto ...
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161 views

Why won't my toilet flush?

A sewage pump in my basement is 7 feet from the shower drain and 2 feet from the water closet. The only vent is from the sump pump which runs 20 feet horizontally to an outer wall then goes ...
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2answers
325 views

How should I center a light fixture when there's a vent stack in the way?

I've got a wastewater vent stack that is dead-center behind the master bath vanity. (See attached picture.) Previously, there was a single light fixture. You can still see the box, which wasn't ...
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1answer
441 views

Is this an appropriate drain design for adding a shower?

I recently took on the challenge of adding a shower to my existing downstairs bathroom. The bathroom is inside what used to be the garage so it is far away from any existing vents. After some demo, ...
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1answer
384 views

How do I connect a new trap to an old cast iron pipe?

I replaced a lavatory in the bathroom with a new faucet and new trap, but the old 1-1/4 trap is connected to a cast iron pipe with led through the wall. I cut the old trap out, and I used a 1-1/4 ...
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147 views

Is this the vent?

Below is an image below my kitchen. The drain for the sink. I can hear the water run through it Junction Connects to the 3" main drain Is this a vent? I don't hear any water going through it and I ...
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2k views

Decipher my bathroom rough in

Can someone help me decipher this picture? When I had the house built, the builder roughed in a bathroom for later use. The pipes in this picture are A 2" pipe, possible a vent with a T connector ...
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1answer
175 views

What is the maximum number of connections to pipes?

Does anyone have a table of the maximum number of connections that drain/vent pipes can have for a given size?
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1answer
924 views

What does a vent stack look like?

Excuse my noob question, but what does a vent stack look like? It's pretty easy to tell which pipes are for waste (I can hear the water running through them), and I'm assuming that all of the pipes ...
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2answers
205 views

Easy way to seal an old plumbing vent

I plan on buying a house but it has this cleanout and old vent for the plumbing in the basement. Whoever renovated the basement disconnected the vent and just let air flow into the basement. Is ...
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1answer
131 views

What's the minimum vent diameter required for my drain line?

I'm adding a secondary bar sink in a kitchen area, which will extend the waste pipe to it's farthest length, so I need to put in a waste drain vent pipe up the wall and through the roof. The drain ...
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2answers
270 views

How can I install a washing machine in the kitchen?

i am looking to install only a washing machine (no drier) in my condo under the counter in the kitchen. my brother tried to install it for me but some plumbers advised him not to just hook it up ...
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1answer
6k 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
1k views

How can I reattach a drain pipe that detached under the sink?

Recently, I had a clog in my bathroom sink that I wanted to attempt to fix myself. Believing the clog to be in the P-trap, I bought a pipe wrench, removed the trap, cleaned it out, and attempted to ...
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1answer
441 views

Is venting a vertical waste line required?

I am putting a bathroom in a section of the house that has a crawlspace under it. The main drain is in the basement area of the house. The soil pipes will run horizontally in the crawlspace, then a ...
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1answer
823 views

Why is my toilet bubbling?

Last night while my washing machine and sink in the master bath was running, my master toilet started having air bubbles come up. Then this morning while I was showering I heard bubbles again, and ...
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4answers
1k views

How do I clear a drain pipe clogged with dried soap?

I think we have a clog of dried soap in our pipes, past the U-bend and down the pipes from upstairs to the drain at ground level. How do I clear them?
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2answers
634 views

How can I replace this unusual kitchen sink drain pipe?

I'm trying to replace a broken 1-1/2 inch L-shaped brass pipe under my kitchen sink, as in this picture: At one end, it's connected to the sink drain, which if I'm understanding the terminology ...
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3answers
2k views

Why does water and gunk back up through the overflow hole in the bathroom sink?

When I run the water in my bathroom faucet it sometimes (but not all the time) slowly starts to creep up the overflow hole and pour back into the sink. Included with the water is black and grey gunk. ...
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1answer
282 views

Can I use the original drain line after I move my washing machine twenty feet away?

I currently have a washing machine and dryer in the basement and wish to move them both upstairs. I can tap into the same drain line, but it will be about 20' from the old p-trap. Should I install a ...
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1answer
267 views

Is this water heater drain configuration safe?

I've just replaced my water heater and for the first time my house has a water heater drain pan. The washing machine waste line is nearby and I'd like to connect the water heater drain pan to this ...
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1answer
1k views

Do I need to add a vent when moving a toilet drain across the bathroom?

In working on finishing our basement, I've come to the bathroom. It was originally plumbed with the plan of having the fixtures share a common wall (vanity, toilet, then tub). so there is already a ...
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2answers
813 views

Do I need a vent on this emergency drain?

Code allows the use of a wet vent for the bathroom group which in my case is a sink, toilet, and shower drain. About 10-15 feet down stream of this group I have a washing machine drain with its own ...
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2answers
257 views

Can I share a stack between two toilets?

I want to put another toilet/bathroom off my bedroom. The main bathroom is next door to the cupboard I want to turn into my new bathroom. What run do I need for the second toilet? The main stack is ...
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3answers
5k views

Can I vent my bathroom exhaust fan into a plumbing drain vent?

I installed a bathroom fan in the ceiling. My bathroom is in the room right next to the laundry room. The washing machine has the standard drain pipe vent of a pvc pipe venting to the outside ...
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1answer
304 views

Should I use glue or o-ring joints on a buried PVC waste pipe?

What are the advantages and disadvantages of both systems of joints for "non-pressure" pipes that are buried? O-ring joints are more expensive, but easier to do on buried pipes. Glue on the other ...
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2answers
181 views

What could cause poor drainage in the kitchen and baths?

After having my septic system (tank) cleaned about a month ago, I've noticed a foul odor in the bathroom of the master bedroom. I've also noticed the smell outside near the master bedroom. It's not ...
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2answers
749 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 ...
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2answers
2k 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 the PVC fitting? This PVC flange is glued to the ...
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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?
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1answer
940 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 ...
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1answer
241 views

Why did my tub drain start running slowly after going unused for a little while?

I recently moved into a new apartment and quickly found that the tub drain ran pretty slowly. I wasn't able to fix it myself, so eventually a plumber came in and fixed things up — the drain ran great ...
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2answers
12k views

When does an under the sink P-Trap assembly need venting?

In the realm of second homeowner woes, I had a P-Trap assembly under the bathroom sink. It was a strait connection to the pipe connected to the main sewer line. (least I think that was the case) ...
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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 ...
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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 ...
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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 ...
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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 ...