Someone poured concrete into the toilet and the sewage system stopped working throughout the entire building.

Jun 7, 2026 9:22 PM

kenistod

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230500

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650

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10

Are they not paying the people enough to live on?

3 months ago | Likes 8 Dislikes 2

Something is off about this. I would think that the concrete would plug at the P trap. I guess if this was a basement unit it could block the rest of the building. Not sure how it would back up to the tub.

3 months ago | Likes 5 Dislikes 0

Effective way to say "I quit"

3 months ago | Likes 6 Dislikes 0

Any thoughts @AlphaStructural?

3 months ago | Likes 7 Dislikes 0

.

3 months ago | Likes 1 Dislikes 0

Anyone speak (well, listen) Russian?

3 months ago | Likes 6 Dislikes 0

Epic shit

3 months ago | Likes 6 Dislikes 0

3 months ago | Likes 166 Dislikes 0

I used to print this out and tape it to people's monitors when they were in the bathroom.

3 months ago | Likes 1 Dislikes 0

The ancient mural!
Still my all time favourite.

3 months ago | Likes 2 Dislikes 0

"all you had to do was pay us enough to shit"

3 months ago | Likes 12 Dislikes 0

My uncle flipped houses. Sometimes they flipped bank owned properties. One of the worst houses they ever bought had concrete poured down the main sewer line. Add a shit time of expenses to the remodel

3 months ago | Likes 4 Dislikes 0

Retired GC here! If I wanted to do damage this way? I'd haul in a few bags (2 people w/ $7, 80 pound fast-setting Quikrete bags each would do; go to the lowest toilet in the building), pour it in the then immediately flush it, and do that several times until the bags were gone, leaving the last one like this.

3 months ago | Likes 16 Dislikes 0

The "lowest toilet in the building"? Are you specifically targeting the main sewer line, potentially rendering DOZENS of buildings uninhabitable?

3 months ago | Likes 3 Dislikes 0

I'm always mute here (background šŸŽ¶), so the 1st time I just replied. I watched it again listening, and it's not in the US (my experiential locale), and, he tapped on the down drain and it was filled solid; then it erupted out of that toilet & onto the floor. I was saying how to do a similar sabotage; what I described would not be near enough material to block a sewer main. Here, this seems more likely a pump truck w/concrete pumping much larger volumes from higher up to produce such a result.

3 months ago | Likes 4 Dislikes 0

3 months ago | Likes 13 Dislikes 1

is this russian?

3 months ago | Likes 4 Dislikes 0

No shit?

3 months ago | Likes 6 Dislikes 0

Not in that toilet

3 months ago | Likes 2 Dislikes 0

Depending on how far the damage went this could be a great fucking way to get a building condemned.

3 months ago | Likes 70 Dislikes 1

A guy I know had some major renovation work done on his house’s plumbing SEVERAL years ago.

Then one day, his plumbing absolutely refused to pass anything. (Use your imagination.)

After some initial attempts to snake the drains, etc., his plumber sent some fiber optic cameras down to see WTF was going on. Apparently, the company that did his renovations disposed of some concrete down his drains, and it had taken years for the stuff to finally set in the main outflow from the house.

$$$$$

3 months ago | Likes 4 Dislikes 0

We had the same issues with grout from lazy tilers blocking ours

3 months ago | Likes 3 Dislikes 0

This works also with water cooling of AI data centers.

3 months ago | Likes 5 Dislikes 0

Guessing someone got fired or kicked out of their appartment

3 months ago | Likes 36 Dislikes 0

If it’s in that stack pipe and the whole building is not working, depending on the size of the building, that’s a lot of concrete, I have mixed bags of concrete. That’s no easy job. Someone would have to noticed carrying that much concrete. Or a concrete truck

3 months ago | Likes 8 Dislikes 0

Sounds indicate there's building work done in that building. The cement bags likely was already there

3 months ago | Likes 4 Dislikes 0

This seems like a great way to kill a building and any adjoining buildings.

3 months ago | Likes 19 Dislikes 0

I heard of that happening in 2008 when people were being evicted due to the banking industry making bad decisions.

3 months ago | Likes 127 Dislikes 1

I heard it happened in 2026, when they tried to kill off that town to give electricicity to an AI data center.

3 months ago | Likes 3 Dislikes 0

Happened in a couple houses around here. The entire drain system had to be replaced. With a crawl space, not unfixable, just expensive. On a slab, tear it down and start over.

3 months ago | Likes 46 Dislikes 0

Omg...omg all the old suburbs with problems already...disasters

3 months ago | Likes 10 Dislikes 0

Someone injected concrete underground and accidentally hit the sewer line.

3 months ago | Likes 35 Dislikes 0

Right, all these people commenting have never mixed concrete before if they think this was just someone flushing unmixed concrete down the toilet

3 months ago | Likes 15 Dislikes 0

I was thinking that too. No way someone just dumped some bags of concrete in a toilet and it backed up into a bathtub. Maybe they were running a grout pump to fill voids underground and hit a broken sewer line. Or maybe it was intentional...

3 months ago | Likes 30 Dislikes 0

This seems like a reasonable explanation. I was wondering about the logistics of getting enough concrete into the toilet drain pipe to fill up the bathtub. The cement would have to be premixed and the toilet bowl removed and even then it's a challenge to fill up the more or less horizontal bathtub drain pipe through gravity alone.

3 months ago | Likes 7 Dislikes 0

Could you put the dry mixture in your pockets and flush it? Asking for a friend

3 months ago | Likes 7 Dislikes 0

Dry cement + water = cement

3 months ago | Likes 6 Dislikes 0

So that's a yes?

3 months ago | Likes 1 Dislikes 0

Imagine what a pallet of quikrete could do to an AI data center 😃

3 months ago | Likes 31 Dislikes 0

You probably wouldn't need that much to do serious harm, especially a sandwich bag's worth a day, makes the data centers go away. Assuming they have toilets.

3 months ago | Likes 8 Dislikes 0

Not the toilet. They would jsut make the workes shit in a porta. It goes into the coolant system thats busy wasting water.

3 months ago | Likes 8 Dislikes 0

Say more. What exactly does the coolant system look like? You know, so we can be extra careful.

3 months ago | Likes 6 Dislikes 0

Its a giant radiator, but I wonder if the intake pipes are accessable.

3 months ago | Likes 4 Dislikes 0

Did everyone else just have an idea about groups taking 1 gallon Ziploc bags of concrete into .. say financial institutions, and doing this to their bathrooms on multiple floors near the top at the same time?

3 months ago | Likes 12 Dislikes 0

I dont think the top floors are the right ones. The concrete fills the pipes close to the toilet. Sewage from all teh floors above accumulates in the pipes and comes out of the toilets one floor above the stoppage. I think you wan as many floors as possible above the stoppage to maximise the amount spilling. But, IANAP.

3 months ago | Likes 1 Dislikes 0

I like the way you think

3 months ago | Likes 3 Dislikes 0

I once had the idea to fill a Dumpster with concrete so the truck that tried to empty it would flip. I cannot afford enough concrete to try this.

3 months ago | Likes 17 Dislikes 2

Hydraulic systems always have a pressure limit valve that is intrinsic to the system. The truck would try to lift the dumpster, stop, ...and that's about it. I'd suggest something more creative; maybe like filling it with cans of soda and cartons of Mentos.

3 months ago | Likes 7 Dislikes 1

It's a lot cheaper if you get a whole truck of it delivered. Of course, the concrete truck driver may wonder why you're having him unload the product into a dumpster...

3 months ago | Likes 8 Dislikes 0

Not with that attitude

3 months ago | Likes 8 Dislikes 0

More lukely the hydraulics would blow out before it could lift it. An eight yard dumpster, would hold about 8 cubic yards of concrete. That would weigh about 32,400 pounds.

3 months ago | Likes 15 Dislikes 0

Most dumpsters would probably burst before they're full.

3 months ago | Likes 4 Dislikes 0

Correct answer. Those things aren't rated for more than a very few tons. It would probably split a seam unless you put it in one layer at a time and let it harden before adding more.

3 months ago | Likes 7 Dislikes 1

And many garbage trucks weigh a lot more than that and wouldn't tip.

3 months ago | Likes 5 Dislikes 0

To give you an idea of the scale, that's about half the size of your mom.

3 months ago | Likes 15 Dislikes 1

v

3 months ago | Likes 3 Dislikes 0

Im no plumber so forgive my ignorance... that whole system is fucked now is it not? It seems like theyd have to remove the entirety of every pipe effected and replace them.

3 months ago | Likes 275 Dislikes 0

Nah, pretty sure if you just plunge it you will be fine.

3 months ago | Likes 1 Dislikes 0

There are theoretical ways to clear it for short runs. Basically drill it out. But it'll be a problem forever and it's cheaper to replace it. It isn't really a 'treat the symptoms' situation, we're in 'cut out the cancer' territory.

Things above them are probably okay, but the way the tub filled indicates it found a shared drain, and spread into things connected to it. The whole system may not be contaminated, but the whole system IS currently unusable. A lot will have to be replaced.

3 months ago | Likes 5 Dislikes 0

Probably mostly the pipes on the way out. But not quite all of time. Imagine if someone did this from a top floor in multiple places and kept flushing the stuff down to spread it around.

3 months ago | Likes 5 Dislikes 0

Yes, this kills the pipes

3 months ago | Likes 3 Dislikes 0

Yep. Big job. Lots of tear out and re finish work too. All depends on the size of the building

3 months ago | Likes 14 Dislikes 0

You can break down concrete using acid, but... well, that's a LOT of concrete, and the acid thing is mostly effective against thin layers.

3 months ago | Likes 5 Dislikes 1

Plus all the lost revenue from the tenants who can no longer use the building.

3 months ago | Likes 9 Dislikes 0

We had a partial clog because the builders put grout down the drain without washing it all the way out, and they were able to (very carefully) chip it out of the pipe. But if they hadn't been able to, we'd have had to replace the pipe. With full clogs like this, probably that's not an option anymore.

3 months ago | Likes 8 Dislikes 0

If you disconnect the completely blocked pipes within a couple of days, the partial blockages can be broken up and sucked out before cure.

3 months ago | Likes 11 Dislikes 1

Its still a horribly nasty job and likely involves removing and replacing about 10 feet of pipe in all directions. Depends on how much was

3 months ago | Likes 12 Dislikes 0

used, of course.

3 months ago | Likes 8 Dislikes 0

Depending on how far down it set, this could go down to the sewer or further. It backed up to the bath tub. Every pipe requires replacement. These are full of set concrete. That is major removal. Depending on the floor this was done on... Total drain replacement. Sections of pipe will need to be cut out likely with concrete rated tools. That means slow. Everyone who lives in this building will need relocation during the repair. Masterclass in sabotage.

3 months ago | Likes 55 Dislikes 0

How does the floor affect things? Are they more fucked over if it's on the ground floor or a higher one?

3 months ago | Likes 1 Dislikes 0

Ground floor is best case. The higher the floor the more pipe affected. It could potentially back up into other floors or rooms. This will massively increase cost of repair. Every higher floor is just that many more feet / meters of pipe to be replaced and inspected. As the concrete goes down it dilutes as well, and it can be corrosive damaging backflow prevention valves. All of those may need to be inspected.

3 months ago | Likes 2 Dislikes 0

Absolute masterclass. Well said.

3 months ago | Likes 4 Dislikes 0

Yup. Depending on how big the building is, tens or maybe hundreds of thousands in damages. Whoever did this is probably going to end up in prison.

3 months ago | Likes 7 Dislikes 0

Assuming they get caught and convicted, of course.
Then there's the restitution ...

3 months ago | Likes 2 Dislikes 0

I'm no plumber either, but I don't think there's any way to get the concrete out of the pipes without at least completely disassembling them, and even then buying new pipes is probably cheaper than putting in the work hours trying to get the old pipes clean again.

3 months ago | Likes 63 Dislikes 0

I am a plumber and you are correct. Cheapest fix will be to replace the affected fixtures and piping.

3 months ago | Likes 11 Dislikes 0

yeah you dont try to chip that shit out or whatever, you just cut it all out and start over. Had to do this once years ago, Some Aholes broke into one of my companies properties (unoccupied, was trying to sell) and dumped bags of concrete in all the floor drains. Had to jackhammer up all the concrete floors to replace piping. Had to foot the bill for that BEFORE we coud sell the place.

3 months ago | Likes 11 Dislikes 0

Maybe pouring coke down the drain fixes it? Or a bag of rice? /s

3 months ago | Likes 22 Dislikes 0

I dont think cocaine is getting us out of this one, but im willing to give it a shot. ...For science, of course

3 months ago | Likes 3 Dislikes 0

It opens the nostrils, so why not a pipe?

3 months ago | Likes 2 Dislikes 0

Plumbers hate this one simple trick

3 months ago | Likes 13 Dislikes 0

I'm no plumber either, but I've laid some pipe in the past..

3 months ago | Likes 16 Dislikes 3

Probably $30k plus in damages they have to dig out and replace it all

3 months ago | Likes 136 Dislikes 2

Totally random guess since you have no idea how big the affected area is

3 months ago | Likes 1 Dislikes 0

I think you might have forgotten a zero there.

3 months ago | Likes 30 Dislikes 0

That really depends on the size of the building. I wouldn't be surprised if the 4plex I'm in would be under $10k. An urban high rise I could see costing millions; especially when factoring in needing to put everyone in hotels for the duration of the repair.

3 months ago | Likes 3 Dislikes 1

I had the pipes above my kitchen ceiling replaced after my upstairs bathroom toilet intake flow pipe leaked between my floors and that was like 3 grand. ( I replaced it all as my ceiling was open and all my piping was exposed and around the same age). That was just the piping under 2 bathrooms. I can't imagine trying to replace CONCRETE filled pipes for under 10 grand.

3 months ago | Likes 1 Dislikes 0

I manage a restraunt inside a very small log cabin. Our plumbing is garbage and needs replaced. The lowest estimate I got was 30 k

3 months ago | Likes 2 Dislikes 0

"The whole building" so add another zero. By the time you figure in having to pay for tenants to stay at motels and getting this fixed at emergency levels of hourly rates, going over a quarter mil isn't unreasonable. This is "get the police involved" levels of damage because for shit sure his insurance company will want *someone's* ass to nail to the wall for this.

3 months ago | Likes 2 Dislikes 0

More than that... Replace flooring, walls, tile, in addition to the plumbing

3 months ago | Likes 14 Dislikes 0

So you're saying we can protest Amazon civilly(civil, not legal)?

Don't do crimes, though. That'd be a property crime.

3 months ago | Likes 7 Dislikes 1

Depends on the number of units affected and the complexity of the structural architecture. It could easily be hundreds of thousands.

Basically you get to remove a concrete-filled plumbing system and install a brand new one.

3 months ago | Likes 4 Dislikes 0

thats gonna cost way more than 30k

3 months ago | Likes 3 Dislikes 0

$30k seems an order of magnitude too low

3 months ago | Likes 3 Dislikes 0

$30k feels low

3 months ago | Likes 36 Dislikes 0

As a general contractor, that’ll get you the inspections needed so you know exactly how fucked you are. Easily a million or three pending how much was poured, where it started, how much of the mains got f’ed.

3 months ago | Likes 1 Dislikes 0

If it's just that one apartment and the flow in the main line was high enough to keep it flowing so it didn't set that could be right.
If it blocked up the entire main line in a larger building 30k won't cover the hotel cost for the people who can't live at home for a couple of weeks.

3 months ago | Likes 11 Dislikes 0

Jfc. It had to be done on purpose. I understand giving an F U to landlords but this fucks over everyone. Dick move.

3 months ago | Likes 48 Dislikes 4

depends on where this is

3 months ago | Likes 2 Dislikes 0

Have you seen the stupidity of some contractors?

3 months ago | Likes 3 Dislikes 0

pretty hard to accidentally fill a toilet with concrete

3 months ago | Likes 50 Dislikes 0

I don't know what you're given to eat over here, but shitting concrete ain't normal !

3 months ago | Likes 1 Dislikes 0

The tenant is 100% getting sued and likely thrown in jail if they can find him

3 months ago | Likes 30 Dislikes 1

I meant to purposely destroy the system. Vs someone just being dumb and thinking flushing it wasnt going to be a big deal?

3 months ago | Likes 7 Dislikes 1

It looks like way more than simply filling the toilet. It looks done several times over.

3 months ago | Likes 2 Dislikes 0

That is an interesting sabotage method I hadn't even thought of before.

3 months ago | Likes 544 Dislikes 3

I'm just mentioning this for no reason.... Trump hotels and golf clubs

3 months ago | Likes 1 Dislikes 0

3 months ago | Likes 38 Dislikes 0

Something to ponder if you don't get that deposit back

3 months ago | Likes 54 Dislikes 1

Datacenters need lots of water for cooling...

3 months ago | Likes 15 Dislikes 0

Likewise. Going to have to remember this one. Concrete is tough to get rid of; You basically have to break it down with acid.

3 months ago | Likes 15 Dislikes 1

They'll "just" replace the pipes.

3 months ago | Likes 5 Dislikes 0

This is why there are blank pages at the back of the Anarchist's Cookbook...

3 months ago | Likes 4 Dislikes 0

I heard of someone doing this yeeeaaars ago because they were going to get evicted

3 months ago | Likes 5 Dislikes 1

I thought the best we could do was put raw chicken behind the faceplates of light switches and power sockets or glue fish hooks to the undersides of tables and drawers. This is genius. I'm gonna keep this forbidden knowledge for later.

3 months ago | Likes 3 Dislikes 1

Frozen shrimp in the shower curtain rid is still a classic

3 months ago | Likes 4 Dislikes 1

Oh, that's a good one too.

3 months ago | Likes 1 Dislikes 1

I've hated some landlords before but this... this is *art*.

I feel for everyone else who has to deal with it but damn does this person make a statement.

3 months ago | Likes 4 Dislikes 1

Apparently lots of people were doing this when being foreclosed on during the 2008 housing crisis.

3 months ago | Likes 2 Dislikes 0

"All they had to do was pay us enough to live."

3 months ago | Likes 261 Dislikes 12

Yeah, fuck all the other people who live in the building. I’m sure filing an insurance claim really inconveniences the landlord.

3 months ago | Likes 12 Dislikes 5

"AI Datacenters hate this one little trick."

3 months ago | Likes 44 Dislikes 2

Now that's a great plan for all of their datacenters.

3 months ago | Likes 7 Dislikes 0

3 months ago | Likes 12 Dislikes 0

Soon : "All they had to do was end the war" you say to yourself as you pour concrete throughout the destroyers water piping.

3 months ago | Likes 52 Dislikes 0

Noted*

3 months ago | Likes 13 Dislikes 0

They say service members get up to the craziest shenanigans...

3 months ago | Likes 15 Dislikes 0

People who are about to be evicted do it all the time. Honestly don't even blame them.

3 months ago | Likes 11 Dislikes 9

My friend and her wife bought a house that was a foreclosure about 15years ago. They lived there for about a week when they found out the previous owner had packed the 4" main line AFTER the cleanout with concrete. Also, hire an independent inspector before you buy a house. Don't trust the bank/seller to do it.

3 months ago | Likes 25 Dislikes 0

I won’t rent because of how bad the laws are stacked against landlords. I think this is why a lot of landlords are shitty. Brothers neighbor leased out there house to a tenant that made like one month rent, and it took paying the deadbeat like $10k to move out finally.

3 months ago | Likes 3 Dislikes 3

Most landlords and tenants are fine. You only hear about the bad ones for obvious reasons, but with so many people renting it's apparent that most people are just getting by and getting along.

3 months ago | Likes 3 Dislikes 0

While it does happen - most people aren't so stupid as to turn an eviction into a jail time, court case, and very expensive civil case they'll likely lose.

Don't do this.

3 months ago | Likes 7 Dislikes 1

Wasn't talking about rent specifically as my friend's case I mentioned was pretty common with the major mortgage collapse around 2008-2009. People's rates spiked and they could no longer afford their houses so the banks foreclosed and people did everything they could to tear up their own homes on their way out so the flippers would have to deal with it. It was a shitty time all around.

3 months ago | Likes 4 Dislikes 0

Still sounds to me like they were exposing themselves to legal jeopardy to punish the wrong people.

3 months ago | Likes 1 Dislikes 1

Pretty sure this is also a felony criminal charge

3 months ago | Likes 46 Dislikes 6

So is arson.

3 months ago | Likes 3 Dislikes 0

Well into felony territory. Other ways to show displeasure.

3 months ago | Likes 10 Dislikes 4

Pope says it’s fine if you say three hail-Mary’s first

3 months ago | Likes 6 Dislikes 1

More importantly - *better* ways to show displeasure rather than to fuck the people who need to shit, which is everyone.

3 months ago | Likes 14 Dislikes 2

Seems more like a misdemeanor. Though if they had a lease, they might actually get somewhere with "this is a civil matter." Might. Depending on how late into the cops' shift it is.

3 months ago | Likes 4 Dislikes 4

That’s $20k in damage…

3 months ago | Likes 3 Dislikes 0

Oh, no, that's property damage, and it's big property damge. That's not civil, that's a crime. And the costs we can guess at, misdemeanor is usually under $500-$1000, varying by state.

Drain pipes are fragile, so it's likely you're cutting apart and replacing every single affected pipe, and PRAYING that this means a straight line from the sabotage site to the main. But the way it came up into the tub from below, it's almost certain it's spread into other stuff connected to a shared drain.

3 months ago | Likes 7 Dislikes 0

Criminal mischief. Beyond a certain dollar amount (depends on where you are), a felony.

3 months ago | Likes 3 Dislikes 0

Not if you wear gloves and sneak into that asshole neighbor's apartment to pull it off.

3 months ago | Likes 5 Dislikes 1

If a guy fucks over 49 innocent people because one of them was a jerk…. Fuck that dude. No. Was this an apartment building? If I can’t take a poo in my own home cuz Steve sucks, both them dudes are losers.

3 months ago | Likes 3 Dislikes 2

Easier if its a public/community restroom, albeit sneaking in a 50+ lb bag of concrete mix would be tricky... you could hide it. Save smaller portions in the ceiling multiple trips over time. Wear gloves, use cash etc. Depending on your country the police probably suck more than they want you to think.

3 months ago | Likes 32 Dislikes 0

But why? Community bathrooms are for the community.

3 months ago | Likes 3 Dislikes 0

I don't mean the ones in parks or libraries more so the ones in a Walmart or Citigroup marketing lobby's loo on the 24th floor of the Citibank building.

3 months ago | Likes 2 Dislikes 0

Don’t forget insurance companies.

3 months ago | Likes 2 Dislikes 0

3 months ago | Likes 6 Dislikes 0

You might be overthinking this. Gallon zip lock baggies, each filled with enough concrete to be relatively about an inch thick when laying flat on a table. Double bag to prevent tears, then tape them around your torso. Throw on an extra large shirt or two to muffle sound and hide any weirdness with your shape.

You can move an entire 50lb bag in one trip with minimal effort.

3 months ago | Likes 20 Dislikes 0

You guys are ALL overthinking it. Some coveralls, a baseball hat, a belt full of plumber tools, a big wet dry vac full of 50lbs of concrete mix, and an out of order sign. Can even run the shopvac hose past the bend in the toilet, set it to reverse, and blow the concrete mix all in before you start flushing.

3 months ago | Likes 15 Dislikes 1

You guys are ALL overthinking it. A Hawaiian shirt, sunglasses, a hat and a rolling suitcase and your golden. Bonus if you wear a COVID mask because you are "traveling", makes the camera footage less useful

3 months ago | Likes 2 Dislikes 0

You guys are all under thinking this. Gee, I wonder who poured concrete into the toilet. Let's see. Three people were in the bathroom about that time. Let's just investigate all three and follow the gazillion security cameras we have set up throughout the building

3 months ago | Likes 15 Dislikes 2

Yeah until they check the footage and see a random ā€œplumberā€ they didn’t hire walk in with a shop vac lol

3 months ago | Likes 5 Dislikes 1

Oh yes it is. And a delightfully expensive civil suit.

Again - this won't actually harm the business, it just inconveniences the people there. Insurance covers vandalism.

3 months ago | Likes 6 Dislikes 4

Kinda depends on certain things, though. Like whether it happens to every new set of pipes and at every one of the business' locations. But yeah there are better ways.

3 months ago | Likes 3 Dislikes 1

If it becomes a pattern they look at security camera footage and someone goes to jail. And again - nothing changes. Property damage isn't a compelling threat because the business pays for it, not the people making decisions.

3 months ago | Likes 2 Dislikes 5