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Whose Pipe Is It?

Plumbing answers for condos and apartments

Photo credits

Most pictures on this site are real photographs from Wikimedia Commons, including public-domain government surveys. We crop them to fit and blur maker names and logos where we spot them. A blur is noted on most captions where it shows. Each page shows the photo closest to the topic that we could find, which is not always a photo of the exact problem or of an American apartment. The caption says so where it matters.

PictureByLicenceSource
A drop-ceiling panel with a large brown, crumbling water-damaged patch above a tiled wallAtomicdragon136CC BY 3.0Source page. Cropped or retouched for this site.
A white plastic sink trap with a thin stream of water running from its undersideTony WebsterCC BY 2.0Source page. Cropped or retouched for this site.
A rust-brown water stain on a textured painted ceiling where it meets a yellow wallEd! (Photography Gallery)CC BY-SA 3.0Source page. Cropped or retouched for this site.
Dark mold blooms across the ceiling and upper walls of a room with a ceiling fan and tall windowsInfrogmationCC BY 3.0Source page. Cropped or retouched for this site.
A chrome recessed fire sprinkler head with a red glass bulb in a plain white ceilingHomeSpot HQCC BY 2.0Source page. Cropped or retouched for this site. Credit link requested by the source: HomeSpot HQ.
Wooden water tanks on steel legs among the brick rooftops of New York apartment buildingsRoy GooginCC BY-SA 3.0Source page. Cropped or retouched for this site.
A new faucet aerator in a plastic bag next to a worn old one on a wooden surfaceMKFIPublic domainSource page. Cropped or retouched for this site.
Two copper water pipes running on the surface along a wood-panelled ceiling and down a cornerSanteri ViinamäkiCC BY-SA 4.0Source page. Cropped or retouched for this site.
A chrome shower lever and a square wall spray set in wet blue-grey tileTomwsulcerCC0Source page. Cropped or retouched for this site.
An old boiler seen through a doorway in a scuffed basement wall, with pipes along the ceilingHistoric American Buildings Survey (HABS CA-2404), Library of CongressPublic domainSource page. Cropped or retouched for this site.
White plastic drain piping and a trap inside an open sink cabinetTony WebsterCC BY 2.0Source page. Cropped or retouched for this site.
An old tarnished brass P-trap coming out of a yellow painted wallRaquel BaranowCC BY-SA 4.0Source page. Cropped or retouched for this site.
Gas meters and pipework on an outside wall of a condominium buildingBrokenSphereCC BY-SA 3.0Source page. Cropped or retouched for this site.
Two stainless water hammer arresters fitted to the valves of a washer box, with a braided hose attachedTony WebsterCC BY 2.0Source page. Cropped or retouched for this site.
Red and blue sleeved water lines rising out of a floor along a bare block wallKVDPPublic domainSource page. Cropped or retouched for this site.
A hand lifting a perforated metal grate off a floor drain, with dark water in the openingSgconlawCC BY-SA 4.0Source page. Cropped or retouched for this site.
Two copper pipes passing through a block surface inside sealed rings, with handwritten marks on the blockAchim HeringCC BY 3.0Source page. Cropped or retouched for this site.
A narrow residential high-rise tower rising behind bare branchesM.O. StevensCC BY 3.0Source page. Cropped or retouched for this site.
A modern apartment building lobby with a double-sided fireplace, orange and black chairs and pendant lightsSdkbCC BY-SA 4.0Source page. Cropped or retouched for this site.
Low-rise tan-brick apartment buildings around a grassy courtyard with large bare treesNyttendPublic domainSource page. Cropped or retouched for this site.
Ruined furniture and household debris piled along a street in front of white frame housesMichael RiegerPublic domainSource page. Cropped or retouched for this site.
A plain shared laundry room in an apartment complex with stacked machines and folding countersHistoric American Buildings Survey (HABS VA-1339), Library of CongressPublic domainSource page. Cropped or retouched for this site.
A black, moldy wet patch spreading from the corner of a white ceiling and running down the wallNPS PhotoPublic domainSource page. Cropped or retouched for this site.
A tiled shower floor broken open to show the drain piping and trap belowHardyplantsCC BY-SA 3.0Source page. Cropped or retouched for this site.
A rust-ringed toilet drain opening in a patched old tile floor, inside the outline left by a toiletDowntowngalCC0Source page. Cropped or retouched for this site.
A grey electric tank water heater on a bare concrete floor in an open closetFamartinCC BY-SA 4.0Source page. Cropped or retouched for this site.
Two white water filter units inside an open cabinet under a double stainless sinkFanti SalmsCC BY-SA 4.0Source page. Cropped or retouched for this site.
A vertical plastic pipe and a copper pipe passing through a concrete floor slab, with a steel riser clamp and printed labelsAchim HeringPublic domainSource page. Cropped or retouched for this site.
A small panelled plumbing access door set low in a painted hallway wallHistoric American Buildings Survey (HABS KS-73), Library of CongressPublic domainSource page. Cropped or retouched for this site.
Braided hoses and metal stop valves in a crowded space under a sinkWikimedia Commons contributorCC0Source page. Cropped or retouched for this site.
Several metal-roofed water tanks on a mid-rise roof in front of a large building wrapped in scaffoldingKritzolinaCC BY-SA 4.0Source page. Cropped or retouched for this site.
Thick wrapped pipes and ducts crowding the basement furnace room of an apartment buildingHistoric American Buildings Survey (HABS KS-73), Library of CongressPublic domainSource page. Cropped or retouched for this site.
A three-story tan-brick garden-style apartment building with a rounded corner behind treesJohn GentryPublic domainSource page. Cropped or retouched for this site.
A long white mid-rise condominium building behind autumn trees and a parking lotG. Edward JohnsonCC BY 4.0Source page. Cropped or retouched for this site.
A long carpeted apartment corridor running past dark unit doors toward a lit exit signKurtkaiserCC0Source page. Cropped or retouched for this site.

AI-generated pictures

Where no fitting photograph could be found, we used a generated picture. It is labeled as AI-generated in its caption on the question's page; the small thumbnails on list pages don't repeat the label. These pictures show the kind of scene being discussed, not a real home.

Video stills are stored on this site and belong to the channels named beside each video.

Updated .