Questions tagged [sewer]

For questions regarding the underground pipes that carry foul or "black" water to a treatment works.

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How to proactively detect a clogged sewer drain pipe?

Is there a way to detect that a sewer drain pipe has clogged and is in the process of backing up? I'm not looking for a) advice like "don't put grease or tampons down the drain" or b) here ...
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3 answers
50 views

Sewer connection with lift pump, or septic tank?

My wife and I are considering a building lot. The city ran a sewer line down the street in front of the lot early this spring, so connecting to the sewer is a possibility, but would require a lift ...
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1 answer
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How High For A Condensate Standpipe?

I have a new Navien NPE-240A2 condensing tankless water heater that I'm installing in an existing small water heater cabinet accessible from the exterior of my house. The current tankless is an older ...
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  • 101
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1 answer
53 views

Sewer backflow pipe in middle of paver patio

I'm installing a paver patio in my backyard and have a sewer backflow pipe in the middle of the area where the patio is going. What options do I have for lowering or covering the pipe so that it is ...
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24 views

Cap Or Plug For Sewage Line

Doing a remodel, and moving a sink about 6 feet from it's original location, and due to the way that the sewer main runs it logically makes more sense to tie into a different sewage line than the ...
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2 answers
74 views

Horizontal turns in drain line

There is a problematic horizontal change of direction in this drainage pipe. It is connected to a sanitary tee, but the flow of water is directed right into the cleanout cap instead of the 45 degree ...
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1 vote
1 answer
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Sewer gas odor in 1st floor mudroom after replacing washing machine in basement

We've had a washing machine in the basement for more than a decade (we use it for oversize stuff, horse blankets). Suddenly, upon replacing our old failing machine with a newer one, I'm smelling a ...
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1 vote
1 answer
77 views

Prioritizing foundation/slab repair and sewage pipes?

My house is old, built around 1955. It has two outstanding issues, Slab repair (very likely needs to be done, doors don't line up and I see cracks above some sills, it has slab repair before) Sewage ...
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1 answer
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Proposed Plumbing Layout Question for Utility Building - shower/sink/toilet

I have two questions regarding the plumbing layout for my utility building: I would like to run the plumbing from the inside of the utility building to a currently existing main four-inch line ...
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2 votes
2 answers
111 views

What material to make a custom sewer trap access pit lid from?

Just had my sewer line redone in my basement and when they poured in the concrete it created a trapezoidal shape and the dimensions are not standard. This is similar to covering a sump pit in the ...
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0 answers
23 views

Sump pit not draining (or maybe it's a retention tank)

I recently had a flood caused by a blocked storm water pipe. I got the blocked line running again. I then dug 2 feet of soil off the top of my sump pit to try to clean the pipe more thoroughly from ...
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-1 votes
1 answer
85 views

Connecting water system drain line to sewer

I’m replacing my water filtering and softener system. The only drain we have in the basement is connected to the sewer pipe. The drain line for the old system are T’ed together and connected to the ...
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3 votes
2 answers
594 views

Can I connect a 90 degree tee to my plumbing that goes straight down?

I currently have a kitchen sink on the first floor which leads to a vertical pipe (illustrated in black). I would like to connect a bathroom sink to the same vertical pipe (illustrated in orange). Can ...
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0 answers
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Sulphur Smell in house when dishwasher is unloaded

I'm going crazy. I have had a sulphur/sewer smell going through A/C vents for 6 weeks. As soon as I smell it, I turn air off for a while ... then it's OK. IT ONLY HAPPENS 1 TIME A DAY. I've had A/...
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1 vote
0 answers
46 views

Best backflow prevention for sewer surges from storms

I have a townhouse in New York City that is on relatively high ground but has had stormwater and sewage backup during intense short-burst periods of rain. What is the most effective way to prevent ...
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2 votes
1 answer
93 views

What considerations should I make when demolishing a driveway?

I have a really long concrete driveway, and we'd like to turn the back half of it into part of the backyard. From this: To this: I'm hiring a demolition contractor for this task, but I'd like to ask ...
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1 answer
106 views

Can a sewer vent pipe be rerouted?

We are adding a new shower and want to extend it by a few inches. But behind it is a sewer vent that has a bump out framed around it. It is on exterior wall and the roof is directly above it. Can it ...
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0 votes
1 answer
44 views

New Kitchen sink poor drainage

After installing a new sink water backs up too quickly. If I remove the whole construction and pour directly into the sewer line it flows fine, so no line clog. I think I did mistake in positioning p-...
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1 vote
2 answers
150 views

Will the InSinkErator Evolution Compact garbage disposal fit under this sink without modifying the plumbing?

I'm trying to help out an elderly friend with a plumbing issue. He doesn't know anything about plumbing, and I don't consider myself very knowledgeable in the field. His sink currently has an ...
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16 votes
1 answer
3k views

Is abandoned sewage pit hazardous?

I own a family house that used to until about 20 years ago have a sewage collector pit in use. It has been abandoned for about 20 years now. It has concrete walls and roofing and gravel on the bottom. ...
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12 votes
4 answers
3k views

Strange suction in toilet and sink, like a vacuum in the sewer pulling the water out

This is hard to explain.. But I was sitting in my bedroom when all of a sudden my toilet started draining, then the sinks in the bathroom started pulling air in, then when the water from the toilet ...
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2 votes
4 answers
563 views

Can I Run Electrical Wire through sewage pipe/ vent

I'm trying to run new electrical wire from the basement to my 3rd floor apartment. There’s a cast iron vertical sewage pipe that goes in the exact route I’d like the wire to go. But there would be ...
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2 votes
2 answers
155 views

What is this pipe? It leaks when the sink runs

I have a pipe that is halfway under a door jamb and inside the concrete floor which when I run a the sink water is now coming out of it. This pipe is next to our AC blower unit inside the basement. I ...
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1 vote
1 answer
41 views

Sewer Line Opening - Makeshift Vent or Rodents?

In the crawl space beneath my house, the sewer line has a branch that runs right to the crawl space entry/vent. The end cap has a jagged hole: Not sure if it's been that way since I bought it (...
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7 votes
6 answers
3k views

What do I use for backfilling septic pipe leaving my home?

I have a 4" PVC septic pipe leaving my house on the cinder block wall about 4 feet below my house. There was a crack inside of the part where it leaves the house and I need to replace it (from ...
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1 answer
110 views

What is the material leaking out of my plumbing drain stack?

This has been happening since about a month after we moved and we noticed a fluid leaking out of this pipe. It seems to be a sewage pipe. Whenever we flush, we can hear the water running down this ...
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0 votes
2 answers
522 views

Laundry drain smells like sewer after washing clothes

I have an in-wall laundry drain - pictured below. Since we moved in it had a significant clog which I unclogged with a combination of wet-vac sucking on the drain and snaking the vent pipe. Finally we ...
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0 answers
2k views

Sewer Smell in High Rise Apartment

I rent an apartment in a new high-rise and I´m on the 15th floor. Weird smells are in both of my bathrooms, with one being a lot stronger burdened with smell than the other. In irregular patterns ...
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0 votes
2 answers
46 views

What things to watch for when installing sewer line in the basement under 15" concrete slab

I am going through a major renovation in my house which involves excavating 7'6" basement and pouring seismically strong 15" slab as a floor. The house is pretty high on the hill and ...
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3 votes
2 answers
993 views

How to seal these sewer clean outs?

I have these caps just outside of my house that I’m assuming are sewer clean outs. The problem is the pipe is all corroded and the caps are PVC that are just set on top of it. They don’t seal as there ...
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0 votes
1 answer
79 views

Is it normal to smell sewer gas from a plumbing vent?

We have a second floor room that is centered on top of the house - but this means that the windows of this second story are ABOVE the plumbing vents from the first floor. These plumbing vents are a ...
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1 vote
1 answer
260 views

Basement Smell in Utility or Bathroom?

In our house, we have a partially below grade basement. Occasionally, our basement will smell like sewer gas (farts) but I can not determine where the smell is coming from. The basement does have ...
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1 vote
1 answer
40 views

Clogged downspout pipe

My downspout, next to a stucco wall, used to go into a cast iron pipe. Recently, the water must have gotten behind the stucco and in the winter, the stucco wall collapsed, pushed the downspout out of ...
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1 vote
4 answers
775 views

Will separate dishwasher drain cause sewer gases and wet dog smell?

Will this separate pipe for dishwasher cause sewer gases to enter into cabinet and dishwasher to get wet dog smell? The separate dishwasher pipe design - at top of pipe is a 2” Wye fitting - one side ...
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2 votes
1 answer
954 views

Sewer smell in bathroom ONLY when central a/c is on and kitchen sink is running water

This is a weird one, and have come across multiple handymen and none of them can pinpoint the problem when I describe it. Though they have never been in the room when it happens. Here is the scenario.....
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0 votes
0 answers
116 views

How To Neatly Cover an Indoor Sewer Cleanout?

I am currently renovating my room and realized that there is a wall popping out. It was bothering me because it would be an obstruction when placing new furnitures. I removed it and planned to make ...
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3 votes
2 answers
314 views

In-place sewer cleanout tee replacement?

I had a contractor roll over a sewer cleanout with some heavy machinery. It looks like the contractor may have amnesia about the damage and reporting to his insurance, so I may be out of luck and need ...
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0 votes
1 answer
54 views

External sewage pipe damaged

I recently had some tree service done to my yard by a contractor, which required them to drive heavy machinery through the lawn. It was pointed out to me that they drove over and damaged an external &...
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2 votes
2 answers
123 views

Which of these is the sewer cleanout

I’m trying to locate the sewer cleanout. I found a box that looks like it contains it but there are 3 separate plugs. Which one should I use? I also found this which I’m guessing is something else
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3 votes
1 answer
497 views

Sewage coming out of concrete in basement floor

My basement has been flooding a little (1-inch or so pooled around a ~20 square foot area) for the past week or so. Whenever I pump out the water, new water starts seeping back in from through the ...
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2 votes
2 answers
183 views

Should I avoid running conduit above sewer line exit on basement wall?

The prior owner of our house had an epoxy repair made on the basement wall where the sewer line exits (see images). We've lived here for 20 years and this repair is solid; there have never been any ...
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1 vote
1 answer
140 views

Toilet Refuses to Flush

Earlier this month, we starting having problems with our sewer line; it began with the downstairs toilet flushing very slowly, then not flushing at all, then backing up when the upstairs was flushed. ...
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1 vote
1 answer
396 views

Cost-effective root barrier for home sewer line

We have 2 trees growing in the same area of our house front yard as the sewer line. As shown in the picture below, one tree is about 5ft away from the line, and the other, about 20ft away. I assume ...
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2 votes
2 answers
2k views

Sewage smell from kitchen sink area

(An update is below the pictures.) We just moved to our house in November and had to buy a new dishwasher. We had installers install it for us. A couple of months ago, we started noticing a bad odor ...
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0 votes
1 answer
123 views

Gray water pit ( bleach or no bleach )

I installed a ( 4’x 4’x 32’) gravel bed gray-water pit in order to relieve the load on my 20 yr old septic tank. I also placed a (4” x 3’) septic-tank effluent bristle brush in the feed pipe going ...
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0 votes
0 answers
125 views

how to reroute black sewer pipe

edit 12/30/2019: - adding a picture of the vent stack above the subfloor and to the right a sink drain that has it's own vent that ties in - there is a red plug in the T. where the trap from the ...
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2 votes
2 answers
139 views

Sewer line repair - most cost effective method?

Background So I recently had a bad clog to which I had a plumbing company come out and clear out. A part of the process is looking at the finished job on their sewer camera. Our sewer line is made ...
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  • 640
1 vote
1 answer
166 views

Is this a displacement or just a blockage?

We just had an inspection done on a house we are buying, and during the sewer scope, the inspector found what he believes to be a displacement. In the video, at about 0:44, there is something ...
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0 votes
2 answers
136 views

Sewage pump sounds like running dry

We have a sewage pump in our basement. We didn’t install it but inherited it with the purchase of the house. I believe the basement was updated in 2014 with a bathroom, hence the sewage pump. The last ...
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0 votes
1 answer
300 views

UK Sewage connection - is an external rodding point mandatory

I have a house extension built circa 1997. Inside there is a three-port shallow inspection chamber where a shower and toilet join to a single 110mm waste outlet heading out of the house. Outside the ...
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