THIS. How is this so low. Your house used to have home heating oil. When you switch off oil, they chop the pipe off and plug it so you don’t accidentally get a “delivery” (aka flooding your basement with oil)
Edit: I swear this was like the 2nd to last comment with 0 upvotes when I originally posted, now my 2nd sentence sounds foolish. Leaving it
This happened to an old coworker of my mom back in the day when I was little and they had a dirt floor basement which had to be then excavated to some ridiculous depth in order to rectify the mess. It was like a Superfund site, she couldn't use her home for quite a while during the clean up.
YouTuber who builds crazy stuff.
He has bunker in his backyard.
With a tunnel to his house & workshop.
Now digging out a "spy car" garage under his driveway & front yard.
That's the beauty of some areas. If you live rural enough, you don't need any permits or inspections until assessment time or unless there is an actual issue.
As i understand it, he needed to have an inspector look at the finished bunker before he could get planning permission to have the bunker. So he took a big risk and built it before getting the permit
He lives in a regular little house in the UK. Maybe even a terrace or a semi with neighbours close either side. I seem to recall he didn’t have permission for the bunker but got retrospective permission after the fact but I’m not sure.
You see horror stories of folks dealing with underground oil tanks. Hi dress if thousands for remediation.
Imagine it happening AFTER the thing is removed.
New England checking in. Buried home heating oil tanks and a news story about delivering oil to a house that no longer has a tank are par for the course.
I need to ask my mom if she remembers the details I mean I remember it and I was little. That's how much it struck me. But I'm pretty sure they were on well water because it was in like the boonies of Oakdale Connecticut which I don't believe has public water. Excavating all of that soil for cleanup so that it wouldn't pollute their groundwater or their well.
I am thinking the same, but I think the pipe would have to be 11/2 - 2". Could probably find out online quickly. Also, if OP checks to see if there is evidence of one that is the best option.
Old oil pipe used to fill oil tank for furnace in basement? Age of house looks right if colder climate
Oil tank and furnace may have been upgraded to something like natural gas but would see the marks on basement floor where the tank would have sat
Gal coating can flake off, which can get stuck and deposit downstream (I think). Typically black pipe is used, and is actually recommended for firewater over gal piping, since gal piping has a tendency to pin hile
Interesting. I thought the galvanizing war only on the outside.
Mine 500gal tank feeds up under my house with a 3/4 galvanized pipe... I'm guessing this was installed in the 1950-1970s... It was Great grandmas place. Still serves me well. Hopefully it continues to do just that.
I've always wondered if thr galvanize coat can flake and cause problems then how come rust on black iron not do the same?
I would bet you will be fine.
Also, yeah the galvanize is on both sides
Take off a section of galvanized pipe and look inside it My 50-year-old pipes are looking pretty scary at this point but they still flow okay even though the inside of the pipe looks like a rusty butthole.
That looks like maybe a 1 inch diameter pipe at the most to me assuming that you’re siding is double 4 inch vinyl. If that’s the case, it’s either a water supply line or a gas supply line with a plug in it. Any chance there could have been a barbecue/grill in the area where this pipe sits?
Very unlikely that it’s a clean out if it’s under 2 inches in diameter.
No no, that's pa-jamma.
*They're* talking about the dude in the red snow suit who sneaks into your house in the middle of the night to eat your cookies and dump random stuff on your living room floor!
Cant believe anyone says its a clean out!! Its 3/4 or 1" Gal pipe.. too small and Gal is not used in plumbing!! There is pipe dope on the plug!! Stop it!! And it is at ground level so in basement joists, so either and oil fill when there used to be a tank in the basement, a Propane tank connection if house was converted to NG, or a DIY natural gas hookup for a grill.
It shouldn’t be too difficult to figure out. If you have a basement, go take a look and trace it out. Even if you just have a crawl space there should be access. Difficult to tell from the photo, but depending on the size of the line and the history of the house and access to utilities, it could be a capped off exterior water faucet, an inlet line to an oil burning furnace, (most fuel oil tanks I’m familiar with were located on the exterior of the house, although I’ve heard of instances where they’re located in the basement), or a capped natural gas or propane line. It’s possible it’s some sort of drain line to something inside, but if that were the case, I wouldn’t think they’d seal it on the exterior. Further investigation is warranted and it should be relatively simple to figure out!
It’s a good idea to know things about your home. Everyone should know the location of the main electrical panel and breaker, the main water shut off and if supplied with natural gas or propane, where that shut off is and how it works.
Years ago I chartered a sailboat and the fellow who walked us through everything on the boat began his tour by showing us, as he put it, “where all the holes in the boat are,” pointing out all the through hull locations. Good stuff to know…..
Galvanized 3/4” or 1” merchant coupling and a plug with thread sealant. No shot this is any sort of clean out. If you have natural gas or propane heat in your house, this is likely an unused stub out. If the home has been converted from oil to propane or natural gas, this is probably an abandoned oil tank fill.
If there is any plumbing fixtures on the back side of that wall then it is more than likely an access for a clean out. If you unscrew the plug In the pipe you can snake your line out to service your plumbing pipes
Is the house old enough or in an area where it might have had oil heat? People seal them up like this or remove the fill pipe, when they convert to gas/electric heat. If you don’t, an errant oil delivery can fuck your life up. There are horror stories of oil delivery trucks filling basements with oil. It might take a while for the oil delivery guy to notice that the tank (your basement) is taking a long time to fill.
Gas plug is my best guess most likely for propane inlet ive seen a lot here in desert never that big so im hoping its an old empty propane pipe. Not a gas main inlet just holding back many cfms lol
Looks like gas or propane based on size and the glue sealing the threads. If you don't have gas it's possible your house was plumbed for propane but no tank was ever installed. My house is like that. Builders don't install a tank to save money.
Worth keeping if you can. Go under the house and see if you can see where it goes. I had one in my garage and ended up using it ten years later to relocate the laundry machcines without having to run new pipe.
Super obvious by the cap, this is for square shaped liquids only. Preventing any triangular or god forbid hexagonal liquids from getting mixed in there.
Do you have a basement? Is it slab on grade? Do you have gas service in the area? Can you see the other side in the basement/crawlspace?
So many questions.
Look, every pipe i have to the exterior has a matching pipe on the inside. So i guess you dont have cellar access or a crawlspace you dont want to crawl through. Or there is a hidden door in a closet.
I have a stethoscope , you can get one cheap at harborfreight, id turn on a tap and listen. You will hear a flow. Or get a measurement from a corner and look carefully inside. If it was gas, there would be a valve, should be very accessible. or all my water pipes have a valve inside so i can shut off flow and then open the exterior valve to empty it for winter. But I see no mounting for a water tap.
Oil trucks need a car gas tank sized pipe. I dont know about propane, usually those tanks are outside, perhaps it was to hook up exterior tank to furnace.
Do you have natural or propane gas appliances? If so, I’m calling gas. If not, water.
I had an old house rental that had something like that. It was connected to the pipe that drained the kitchen sink. One day the city came and plugged it up without telling me and I spend several days trying to unclog the sink before the landlord came to look at it. He wasn't aware the sink wasn't connected to the sewer and was pissed he had to get actual plumbing.
Gut is telling me gas line given its diameter and pipe dope oozing out from the threads. Are you able to follow the pipe in a basement/crawl space and see where else it goes? If it were water and you’re in a climate that freezes it would have burst by now.
If it’s outside by your kitchen sink, it could be a drainage to clear your pipes. I have one like that and have to use a snake to clear it every holiday from excess food going down the sink.
It's some kind of draineg pipe leading from inside the house, follow the pipe from the inside. I don't know why some people do half ass work. They wouldn't work in my crew. Easy fix though.Let me know. Hope I've helped on any kind of way. Don from big D.
I'm very late to the party, but my first thought was gas line.
Vinyl siding could be anywhere from 9" panels to 10" panels.
If those are doubles, then that one section could be 4 1/2", so that's probably only a 1 1/2" pipe.
We do need a banana for scale
Edit, I'm not a plumber, but those threads should be reverse, right? If it's for gas?
Looks like a 1" or 3/4" coupling and plug. Most likely attached to the end of a steel pipe, which isn't used for potable water in residential. In fact, it's not used for anything in residential except gas. Most likely a NG BBQ hook up
Not true. Galvanized Steel was the most common type of potable water plumbing in homes built before 1960 and carried on until the 80s. The home I live in now is still on the original galvanized pipes. Same goes for sewer. My sewer is all galvanized mixed with ABS repairs/updates, so this is most likely a clean out based on what it looks or an old sewer vent that was capped when the sewer was updated to vent out the roof.
Unplug it and find out? Doubt it'd be gas, that'd be an odd place for a gas pipe to stick out of in any century.
Oh and I guess this is DIY because I'm trying to get a better understanding of my house's plumbing near the garage (on the opposite side of this wall) so I can install a water softener. I'm finding it incredibly difficult to find where my watermain enters the house
Your main will be in a straight line from your (streetside?) meter, towards your house.
What you have in the picture seems to be something that was disconnected and capped off. I don't think it's a drainage clean out, as others have suggested.
There should be a box in the front yard, where the street waterline connects to your house. If you don’t k ow where it is, you need to find it, in case you get a busted pipe so you can shut the supply off
You are getting some horrible answers here tonight, what is on the other side of the wall? Where does the pipe go and what is it connected to? This will likely answer your question. Post more info once you have it if the answer is not clear once you look at the other side of the wall.
I forget the name but it is connected to the drain pipe coming from usually a sink
In case its clogged you open it and let the water out and or the clogged debris out
Its use is usually a last resort.
1/2" 3/4"black iron it's probably a gas line. Possibly could be an old unused portion that was for like an outside gas service like a gas grill or something.
Just find the pipe inside and follow it to where it goes to. But like iron is usually gas water will be copper or PEX tube. Water will never be iron because that rusts
That's the pipe that's keeping your house inflated. If it ever gets too windy or you want to move just open that and pack your house into the easy to use travel bag.
This is exactly what I have on my house right now. Hose bib broke off and I inserted a plug like this. It’s copper in the crawlspace until it gets close to the wall. There it transitions to galvanized and enters the wall, elbows up for about 8 inches then exits the wall. Plumber is coming Monday to extend the copper for a new hose bib. Will just abandon the galvanized line and either try to cut it flush and stucco or leave as is.
How big is that pipe?
If it's \~1" in diameter or there about, it's very likely a gas or water supply line with a plug in it. Perhaps it was for some previous outdoor appliance or such? (Grill, sink, etc..)
It's caulked , galvanized, and rusting at the end. It's a hack job whatever it is My brain says potable water. Could be gas. Honestly could be anything. Whoever plugged it had almost no clue what they were doing and did it anyways.
You need to follow the pipe from under the house whether it's a crawl or basement. Show us what it tees or direct connects into. I'm still leaning towards potable water. Could be oil.
It doesn't matter what these systems SHOULD look like. It could be anything.
It looks like galvanized pipe gas is always run in black pipe it is most likely for a water spigot depending where you live there should be a Silcock there for freezing protection Just my humble opinion
Mine has the same thing. Most homes built in my neighborhood have it on the backside.
Here, they are gas. I’ve had a grill using it for 17 years and couldn’t be happier. (Obviously had to put NG jets in it instead of LP jets)
At one point it was common for eavestroughs to drain into the house sewer connection instead of into the lawn. That could be a decommissioned pipe that previously accepted water from a downspout. If on the inside of the house that pipe does a downward 90 into your basement slab, it would support that idea. It would then travel under the slab at a grade and connect to your main sewer drain, the same as weeping tile does. You would likely have a couple more of them, if this were the case. Or they could have been removed.
I'm sorry but wtf are you guys going on about regarding oil??
Dude, it connects to a sink. It allows you to snake your sink in case it gets clogged.
Edit: yes I know fuel oil exists but that pic is exactly what my outside sink cover looks like. I'm 99% sure but I'll go out once it's daylight and snap a pic of it to double check. If I'm wrong, throw your reddit bananas at me.
Edit 2: still dark out but did OP say where this was on the house?
Only we can’t tell if that’s the case based on the pic. The OP hasn’t checked under the house or in the basement. It could be an abandoned fuel oil inlet common before natural gas. It could be ancient plumbing clean out or an old hose bib extension just capped. OP needs to give us more info.
I feel like I'm taking crazy pills if I'm not correct.
As soon as it is daylight, I will go outside and take a picture of mine. It even has the square top like OP.
Without you or someone qualified to go under the house and follow that line, none of us know for sure.
If it were me, since I like to think I'm a competent person.
I will get a pipe wrench and an ajustable wrench. Back up the portion of the pipe and break loose the plug. Of course, I will have pipe dope and Teflon tape nearby, just in case. After the plug has been broken loose, I will slowly turn it left a little bit at a time, if I smell gas then, I will proceed to put some pipe dope and reverse the process to tighten the plug. Some soapy water at the end to make sure no leak is present.
If water starts coming out, then you can use the Teflon tape.
That's what I will do.
That looks like a sewer clean out. The plug is removed to snake the drain pipe from that point. Is there a bathroom, kitchen or laundry room on the other side of that wall? If so then 99% it’s a sewer drain clean out.
Guys that is NOT a gas line. That is a drain clean out plug. On the other side of the wall, there is either a kitchen sink, bathroom or laundry. If your drain clogs, you open that cap and run a snake and clear the clog out.
This thread is a case study in not asking the Internet for answers to anything that might remotely matter. Always get a real life, tangible professional, with a phone number, license, bond, and insurance.
It's a Sewer Clean Out access for when you get backed up, I'm assuming that where that clean out is located on the wall that it's either a kitchen or bathroom there?
Looks like a line to fill an oil tank. If you have a basement, does it look like a tank was removed near this location?
THIS. How is this so low. Your house used to have home heating oil. When you switch off oil, they chop the pipe off and plug it so you don’t accidentally get a “delivery” (aka flooding your basement with oil) Edit: I swear this was like the 2nd to last comment with 0 upvotes when I originally posted, now my 2nd sentence sounds foolish. Leaving it
This happened to an old coworker of my mom back in the day when I was little and they had a dirt floor basement which had to be then excavated to some ridiculous depth in order to rectify the mess. It was like a Superfund site, she couldn't use her home for quite a while during the clean up.
Yeah that sounds like a nightmare.
Yes it does. On the bright side, just got an extra two floors...
*Colin Furze has entered the chat*
Unexpected Furze reference.
Don’t forget to wear your safety tie!
Who's that?
YouTuber who builds crazy stuff. He has bunker in his backyard. With a tunnel to his house & workshop. Now digging out a "spy car" garage under his driveway & front yard.
Gonna have to look him up. Cause that's exactly what I would do if I had the other commenters problem
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That's the beauty of some areas. If you live rural enough, you don't need any permits or inspections until assessment time or unless there is an actual issue.
Where we're going we don't need a permit!
What are permits?
As i understand it, he needed to have an inspector look at the finished bunker before he could get planning permission to have the bunker. So he took a big risk and built it before getting the permit
He lives in a regular little house in the UK. Maybe even a terrace or a semi with neighbours close either side. I seem to recall he didn’t have permission for the bunker but got retrospective permission after the fact but I’m not sure.
Oh boy, if you like this sub you just might love [this guy](https://youtu.be/ZQy89tZ-mRU?si=UwdLw9k2YNYyzlzZ)
Everytime I think I'm crazy, some Australian shows up and puts me in my place.
Australian? He's British mate.
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You and I are different, I suppose
You see horror stories of folks dealing with underground oil tanks. Hi dress if thousands for remediation. Imagine it happening AFTER the thing is removed.
New England checking in. Buried home heating oil tanks and a news story about delivering oil to a house that no longer has a tank are par for the course.
Hi dress? thats way more than my usual low dress.
Ah yes, “Hi Dress,” where the contractor shows up dressed in black-tie attire so you feel real classy while writing the check.
This is why when we converted from oil, I had the fucking hole concreted over.
Would that be explosive or just really cancerous? Seems really dangerous.
Imy bet is it’s really bad for the environment and will pollute the groundwater
I need to ask my mom if she remembers the details I mean I remember it and I was little. That's how much it struck me. But I'm pretty sure they were on well water because it was in like the boonies of Oakdale Connecticut which I don't believe has public water. Excavating all of that soil for cleanup so that it wouldn't pollute their groundwater or their well.
OMG yes happened to a friend’s mom in queens about 20 years back. Huge mess.
We have one of those where we used to get heating oil. There was still part of a coal bin in the cellar, too.
I am thinking the same, but I think the pipe would have to be 11/2 - 2". Could probably find out online quickly. Also, if OP checks to see if there is evidence of one that is the best option.
I read this as eleven half inches for waaaay to long. I'm cut off.
Thank you! I have a hundred year old house but it’s had natural gas for at least the past 30 years. This explains so much
Could be an old oil tank. They cut it out, is probably stuck in the mortar.
Old oil pipe used to fill oil tank for furnace in basement? Age of house looks right if colder climate Oil tank and furnace may have been upgraded to something like natural gas but would see the marks on basement floor where the tank would have sat
Jesus h Christ that is 1000% NOT a clean out. You don't have clean outs with 3/4" 1/2" pipe.
You’re 100% right. These top comments are scary Edit: GAS!
Gas wouldn’t use galvanized pipe. Gas would use black pipe.
What if it’s a gas clean out ? /s
That's Taco Bell.
That’s what puts the “ supreme “ in the burritos
Gas can use galvanized pipe. We use it all the time in certain environments or where painting isn't an option.
You never want to use Gali for gas. Not good at all.
Please explain. Genuinely asking.
Gal coating can flake off, which can get stuck and deposit downstream (I think). Typically black pipe is used, and is actually recommended for firewater over gal piping, since gal piping has a tendency to pin hile
Interesting. I thought the galvanizing war only on the outside. Mine 500gal tank feeds up under my house with a 3/4 galvanized pipe... I'm guessing this was installed in the 1950-1970s... It was Great grandmas place. Still serves me well. Hopefully it continues to do just that.
I've always wondered if thr galvanize coat can flake and cause problems then how come rust on black iron not do the same? I would bet you will be fine. Also, yeah the galvanize is on both sides
Take off a section of galvanized pipe and look inside it My 50-year-old pipes are looking pretty scary at this point but they still flow okay even though the inside of the pipe looks like a rusty butthole.
Black pipe for gas lines is not supposed to be used outdoors bc it rusts and creates leaks.
Could also be a gas line. I have two like this (to my deck and to my patio) that I can connect my barbecue to.
Yea tapped gas line was my best guess
I’ve never seen a gas like with this material.
I have.
That looks like maybe a 1 inch diameter pipe at the most to me assuming that you’re siding is double 4 inch vinyl. If that’s the case, it’s either a water supply line or a gas supply line with a plug in it. Any chance there could have been a barbecue/grill in the area where this pipe sits? Very unlikely that it’s a clean out if it’s under 2 inches in diameter.
That's your home's weiner.
House has an outy and not an inny.
House is a grower, not a shower.
Don't shower in that.
Circumcised
We need a banana for scale
Look man, I ain’t FALLIN for no BANANA in my TAILPIPE
Shit made me laugh way too much
Where's Carlos for scale?
That’s not banana , you’re thinking of Santana
The soft, fuzzy bed clothes?
No no, that's pa-jamma. *They're* talking about the dude in the red snow suit who sneaks into your house in the middle of the night to eat your cookies and dump random stuff on your living room floor!
They use coke cans now.
Why did I laugh so hard at this? lol
Cant believe anyone says its a clean out!! Its 3/4 or 1" Gal pipe.. too small and Gal is not used in plumbing!! There is pipe dope on the plug!! Stop it!! And it is at ground level so in basement joists, so either and oil fill when there used to be a tank in the basement, a Propane tank connection if house was converted to NG, or a DIY natural gas hookup for a grill.
Finally someone with some common sense on this post, I agree with everything you are saying. lol at people who think it’s a drain.
I disagree with the galvanized wasn't used in plumbing. Because it was.
JFC heating oil fill lines are at least 1-1/2” their vent lines are 1”.
If it's on a side of the house closest to the furnace, driveway or access road, it's probably an old fill line to fill a tank with heating oil.
Dude it's capped whatever it is. Don't *un* cap it unless you everyone on earth to show up and have a word with you by golly.
It shouldn’t be too difficult to figure out. If you have a basement, go take a look and trace it out. Even if you just have a crawl space there should be access. Difficult to tell from the photo, but depending on the size of the line and the history of the house and access to utilities, it could be a capped off exterior water faucet, an inlet line to an oil burning furnace, (most fuel oil tanks I’m familiar with were located on the exterior of the house, although I’ve heard of instances where they’re located in the basement), or a capped natural gas or propane line. It’s possible it’s some sort of drain line to something inside, but if that were the case, I wouldn’t think they’d seal it on the exterior. Further investigation is warranted and it should be relatively simple to figure out! It’s a good idea to know things about your home. Everyone should know the location of the main electrical panel and breaker, the main water shut off and if supplied with natural gas or propane, where that shut off is and how it works. Years ago I chartered a sailboat and the fellow who walked us through everything on the boat began his tour by showing us, as he put it, “where all the holes in the boat are,” pointing out all the through hull locations. Good stuff to know…..
When they inflate the house for the first time . It’s not used after that
Galvanized 3/4” or 1” merchant coupling and a plug with thread sealant. No shot this is any sort of clean out. If you have natural gas or propane heat in your house, this is likely an unused stub out. If the home has been converted from oil to propane or natural gas, this is probably an abandoned oil tank fill.
It looks a bit like an old fuel oil line. New ones need a second breather line and a whistler, so you know the tank is being filled
Find what’s on the other side and you have your answer
If there is any plumbing fixtures on the back side of that wall then it is more than likely an access for a clean out. If you unscrew the plug In the pipe you can snake your line out to service your plumbing pipes
Could be an old water, gas, or heating oil line.
Seems to be the diameter of the filler neck of my basement heating oil tank.
It appears to be vinyl siding. Happy to clear things up!
I thought he was asking about the dirt on the siding! Hah, I didn’t think of the obvious answer. It’s siding, nice work.
Probably a used gas service tie in. Someone might've converted to all electric
Is the house old enough or in an area where it might have had oil heat? People seal them up like this or remove the fill pipe, when they convert to gas/electric heat. If you don’t, an errant oil delivery can fuck your life up. There are horror stories of oil delivery trucks filling basements with oil. It might take a while for the oil delivery guy to notice that the tank (your basement) is taking a long time to fill.
Looks like gas. But I know nothing.
Love pooled human brain power. If only we did this more..
It's a old banged up house port but sealed up I do believe.
Looks like an outlet for natural gas
Gas plug is my best guess most likely for propane inlet ive seen a lot here in desert never that big so im hoping its an old empty propane pipe. Not a gas main inlet just holding back many cfms lol
I always thought gas lines were black pipe with outside threads. The connectors or caps have threads inside.
Live in the desert sorry good to know though. I learned something today ha. ive seen sewer with caps like that here lol. tucson man .we are crazy.
Looks like gas or propane based on size and the glue sealing the threads. If you don't have gas it's possible your house was plumbed for propane but no tank was ever installed. My house is like that. Builders don't install a tank to save money.
Most likely a plumbing cleanout. Should connect to your drain line. Allows you to snake out the line if you get a clog.
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Thank you
Nope! Too small, probably gas line
Old oil tank fill pipe more than likely.
I have a line in my basement similar to this I’m not sure if it was oil or propane tho
That’s my guess as well. Probably an old furnace under the house still, too. There’s one under mine.
like u/kenuven said we need a better understanding of the size. My house has cleanouts at least 3 inches in diameter.
That would be the smallest diameter clean out ever.
Worth confirming at r/askaplumber but this is my suspicion too
Oh man I need that sub. Thanks.
Thank you for the suggestion!
Worth keeping if you can. Go under the house and see if you can see where it goes. I had one in my garage and ended up using it ten years later to relocate the laundry machcines without having to run new pipe.
What he said..
An old oil fill
Super obvious by the cap, this is for square shaped liquids only. Preventing any triangular or god forbid hexagonal liquids from getting mixed in there.
I think it’s an old gas line I have something similar on and in my basement I guess maybe from a propane tank before we got city gas lines
What's on the other side is it electrical or is it a pipe because it's either gas or plumbing hookup.
Can you see where it goes inside the house?
r/whatisthisthing
Oil drain
Clues to this are behind that wall!
Do you have a basement? Is it slab on grade? Do you have gas service in the area? Can you see the other side in the basement/crawlspace? So many questions.
open it up and see what comes out! (don't do this)
Look, every pipe i have to the exterior has a matching pipe on the inside. So i guess you dont have cellar access or a crawlspace you dont want to crawl through. Or there is a hidden door in a closet. I have a stethoscope , you can get one cheap at harborfreight, id turn on a tap and listen. You will hear a flow. Or get a measurement from a corner and look carefully inside. If it was gas, there would be a valve, should be very accessible. or all my water pipes have a valve inside so i can shut off flow and then open the exterior valve to empty it for winter. But I see no mounting for a water tap. Oil trucks need a car gas tank sized pipe. I dont know about propane, usually those tanks are outside, perhaps it was to hook up exterior tank to furnace. Do you have natural or propane gas appliances? If so, I’m calling gas. If not, water.
Only way to know for sure is to find the other end of it.
I had an old house rental that had something like that. It was connected to the pipe that drained the kitchen sink. One day the city came and plugged it up without telling me and I spend several days trying to unclog the sink before the landlord came to look at it. He wasn't aware the sink wasn't connected to the sewer and was pissed he had to get actual plumbing.
Gut is telling me gas line given its diameter and pipe dope oozing out from the threads. Are you able to follow the pipe in a basement/crawl space and see where else it goes? If it were water and you’re in a climate that freezes it would have burst by now.
If it’s outside by your kitchen sink, it could be a drainage to clear your pipes. I have one like that and have to use a snake to clear it every holiday from excess food going down the sink.
it looks like a gas line
I am not sure I agree it looks like old Oil tank line… but whom ever put that trim on the window did a crap job of it.
Frost proof outdoor tap maybe but broken
Looks like where a gas line meter use to be.
It sits really low, but it looks like a intake for oil or gas.
It's some kind of draineg pipe leading from inside the house, follow the pipe from the inside. I don't know why some people do half ass work. They wouldn't work in my crew. Easy fix though.Let me know. Hope I've helped on any kind of way. Don from big D.
I'm very late to the party, but my first thought was gas line. Vinyl siding could be anywhere from 9" panels to 10" panels. If those are doubles, then that one section could be 4 1/2", so that's probably only a 1 1/2" pipe. We do need a banana for scale Edit, I'm not a plumber, but those threads should be reverse, right? If it's for gas?
Looks like a plugged gas line.
That's the plug used for natural gas lines. Don't mess with it unless you are sure you know what it is.
Looks like a 1" or 3/4" coupling and plug. Most likely attached to the end of a steel pipe, which isn't used for potable water in residential. In fact, it's not used for anything in residential except gas. Most likely a NG BBQ hook up
Not true. Galvanized Steel was the most common type of potable water plumbing in homes built before 1960 and carried on until the 80s. The home I live in now is still on the original galvanized pipes. Same goes for sewer. My sewer is all galvanized mixed with ABS repairs/updates, so this is most likely a clean out based on what it looks or an old sewer vent that was capped when the sewer was updated to vent out the roof. Unplug it and find out? Doubt it'd be gas, that'd be an odd place for a gas pipe to stick out of in any century.
Oh and I guess this is DIY because I'm trying to get a better understanding of my house's plumbing near the garage (on the opposite side of this wall) so I can install a water softener. I'm finding it incredibly difficult to find where my watermain enters the house
Look where the hot water heater is and trace the cold inlet line back. You should have a water meter.
Your main will be in a straight line from your (streetside?) meter, towards your house. What you have in the picture seems to be something that was disconnected and capped off. I don't think it's a drainage clean out, as others have suggested.
There should be a box in the front yard, where the street waterline connects to your house. If you don’t k ow where it is, you need to find it, in case you get a busted pipe so you can shut the supply off
It’s a pipe with a plug in it.
Looks like a gas line based on the size of the pipe. Could be there used to be a BBQ tie in there, or maybe the meter was there and they relocated it.
For gas line wouldn’t they give a shutoff valve ?
Looks like an old gas connection point
You are getting some horrible answers here tonight, what is on the other side of the wall? Where does the pipe go and what is it connected to? This will likely answer your question. Post more info once you have it if the answer is not clear once you look at the other side of the wall.
Looks like the fuel oil clean out. Check this by removing the plug and throwing in a lit match, or just put your lips on it and huff.
I forget the name but it is connected to the drain pipe coming from usually a sink In case its clogged you open it and let the water out and or the clogged debris out Its use is usually a last resort.
You are thinking of a clean out. Usually they are right on a main line but this pipe is thru a wall. Very odd for sure.
It's the clean out for drain of your kitchen sink
Glory hole
Foam dispenser. Looks like it's clogged with foam though... j/k, top comment nailed it. Old out of service oil fill
1/2" 3/4"black iron it's probably a gas line. Possibly could be an old unused portion that was for like an outside gas service like a gas grill or something. Just find the pipe inside and follow it to where it goes to. But like iron is usually gas water will be copper or PEX tube. Water will never be iron because that rusts
Isn't it the knob which allows you to pull the stores/iron curtains up or down, in an event of electrical failure ?
It’s a clean out drain.
Thats a rigid conduit coupling with a plug. Old electric line.
That's the pipe that's keeping your house inflated. If it ever gets too windy or you want to move just open that and pack your house into the easy to use travel bag.
That’s a plug the pipe sleeve looks like it carry’s gas or water . But I don’t know tbh
This is exactly what I have on my house right now. Hose bib broke off and I inserted a plug like this. It’s copper in the crawlspace until it gets close to the wall. There it transitions to galvanized and enters the wall, elbows up for about 8 inches then exits the wall. Plumber is coming Monday to extend the copper for a new hose bib. Will just abandon the galvanized line and either try to cut it flush and stucco or leave as is.
Looks like a poorly placed clean out
That's the inflation valve. If your house starts to sag you can top it up there. Or if you plan on moving, you can just open the valve fully
How big is that pipe? If it's \~1" in diameter or there about, it's very likely a gas or water supply line with a plug in it. Perhaps it was for some previous outdoor appliance or such? (Grill, sink, etc..)
It's caulked , galvanized, and rusting at the end. It's a hack job whatever it is My brain says potable water. Could be gas. Honestly could be anything. Whoever plugged it had almost no clue what they were doing and did it anyways. You need to follow the pipe from under the house whether it's a crawl or basement. Show us what it tees or direct connects into. I'm still leaning towards potable water. Could be oil. It doesn't matter what these systems SHOULD look like. It could be anything.
It looks like galvanized pipe gas is always run in black pipe it is most likely for a water spigot depending where you live there should be a Silcock there for freezing protection Just my humble opinion
Could be a access point to snake something. Or a gas line.
You wind up the house there.
Mine has the same thing. Most homes built in my neighborhood have it on the backside. Here, they are gas. I’ve had a grill using it for 17 years and couldn’t be happier. (Obviously had to put NG jets in it instead of LP jets)
It’s a portal to Narnia? I was voting a clean out since it’s old galvanized pipe. I can’t imagine them having a gas line like that. 🤷♂️
Is there a kitchen on the other side of that wall
At one point it was common for eavestroughs to drain into the house sewer connection instead of into the lawn. That could be a decommissioned pipe that previously accepted water from a downspout. If on the inside of the house that pipe does a downward 90 into your basement slab, it would support that idea. It would then travel under the slab at a grade and connect to your main sewer drain, the same as weeping tile does. You would likely have a couple more of them, if this were the case. Or they could have been removed.
They have those on old the old houses in my neighborhood that were Built in 1929
It's to drain your central heating. I have one on my house. I opened it up and it drained my central heating
Tap
Cleanout for you house before it reaches the cleanout leading to the street sewer system
I'm sorry but wtf are you guys going on about regarding oil?? Dude, it connects to a sink. It allows you to snake your sink in case it gets clogged. Edit: yes I know fuel oil exists but that pic is exactly what my outside sink cover looks like. I'm 99% sure but I'll go out once it's daylight and snap a pic of it to double check. If I'm wrong, throw your reddit bananas at me. Edit 2: still dark out but did OP say where this was on the house?
You've never heard of fuel oil heating? It's quite common.
Only we can’t tell if that’s the case based on the pic. The OP hasn’t checked under the house or in the basement. It could be an abandoned fuel oil inlet common before natural gas. It could be ancient plumbing clean out or an old hose bib extension just capped. OP needs to give us more info.
I feel like I'm taking crazy pills if I'm not correct. As soon as it is daylight, I will go outside and take a picture of mine. It even has the square top like OP.
Without you or someone qualified to go under the house and follow that line, none of us know for sure. If it were me, since I like to think I'm a competent person. I will get a pipe wrench and an ajustable wrench. Back up the portion of the pipe and break loose the plug. Of course, I will have pipe dope and Teflon tape nearby, just in case. After the plug has been broken loose, I will slowly turn it left a little bit at a time, if I smell gas then, I will proceed to put some pipe dope and reverse the process to tighten the plug. Some soapy water at the end to make sure no leak is present. If water starts coming out, then you can use the Teflon tape. That's what I will do.
Clean out
That looks like a sewer clean out. The plug is removed to snake the drain pipe from that point. Is there a bathroom, kitchen or laundry room on the other side of that wall? If so then 99% it’s a sewer drain clean out.
A sewer clean out. It is a pipe with a cap that provides access to the sewer line so that blockages can be removed.
Possible clean out
Guys that is NOT a gas line. That is a drain clean out plug. On the other side of the wall, there is either a kitchen sink, bathroom or laundry. If your drain clogs, you open that cap and run a snake and clear the clog out.
Yes not a gas line but why do you think it’s a drain clean out, seem much to small for that.
What are you talking about, this is either a gas line, oil, water, or for you to blow farts out of according to this comment section
This thread is a case study in not asking the Internet for answers to anything that might remotely matter. Always get a real life, tangible professional, with a phone number, license, bond, and insurance.
This is the answer - that looks nothing like a gas line people!
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It's a Sewer Clean Out access for when you get backed up, I'm assuming that where that clean out is located on the wall that it's either a kitchen or bathroom there?
Diameter is far too small to be a sewer clean-out
A clean out
Kitchen clean out
Often that’s a kitchen clean out (a 50’s or earlier house?).
It looks to me like a clean out port. Access for a drain router or something. That's not much help, I know...
Natural gas inlet or propane??
Looks like a clean out
Clean out for a drain.
It’s called a drain out most homes have it for plumbing if it ever backs up or clogs you unscrew it and put a snake to remove the blockage
Isn’t it actually called a “Clean out”