Never seen asbestos on plumbing before… but what I am wondering is why is there a p-trap? It looks like a 3 or 4"line, correct?
I thought the same thing about the P-trap, in my head I sized the pipe at 4”, then I just figured if the trap has been there that long with no issues then must be doing it’s job. I would like to be educated on this material, but I would guess 1960’s but that is nothing but a guess. Well maybe the trap does cause a problem the trap has been cut out at least one time before.
The rubber couplings looks fresh, so probably the trap was serviced.
What’s the orange pipe Robert?
It’s going to take him a while to google that one and what it’s purpose is. LOL
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Lol, I used google myself … sprinkler seemed to be the answer , or at least the consensus
Yep, CPVC Fire Sprinkler. Fire rated used in Commercial buildings.
Sorry for the late reply.
Images taken in the false ceiling to observe a water cooled package unit. Carrier AQUAZONE 50RHC018. Tight space.
Orange rigid PVC water pipe. Markings/label. (For underground water main. Refer to insulation and technical manual)
Likely as Marcel stated. Fire suppression.
Domestic potable water tubing is Kitec.
But nothing with a pipe that big needs a ptrap… a toilet doesn’t need it. If it’s for anything else it may need a primer pump to keep it full? Not to mention the rise on the trap also looks too high.
Morning, Daniel.
From the [Plumbing INFO] plumbing traps. (https://theplumbinginfo.com/plumbing-traps/): Any plumbing fixture directly connected to the sanitary drainage system must be equipped with a water seal trap. That means every single plumbing fixture used to evacuate waste from a building should have its own plumbing trap.
Maximum distance of fixture Trap from vent. Methods of Venting Plumbing Fixtures and Traps in the 2018 IPC.
Maximum distance of fixture Trap from vent. IRC Table P3105.1.
Hope that helps.
You do realize what you contribute to the MB?
What I mean is a toilet is not supposed to have a ptrap, because the toilet already has one integrated. What else has a 3 or 4" drainage line that would possibly need a trap installed? I was just wondering what that trap is coming off of, since obviously not a toilet
What else has a 3 or 4" drainage line that would possibly need a trap installed? Water catch basins throughout a basement. Another a garage.
Small DWV pipes enter the soil pipe. So Danial, think of plumbing associated with toilets.
Even in a commercial setting bathrooms with urinals are required have floor drains.
As well. Traps impede the path of rodents and insects.migrating upstream.
HUH? …
Evening, Simon. P traps water seal prevents sewage odors, gases, vermin, mice, various species of insects from entering the living or work spaces. Material Identification
I’ve been in construction for 20 years, I know what a ptrap is for. I also know there’s nothing inside a residential property that uses a 3" hard piped ptrap, (that I have ever seen)… that’s why I was asking what this drain, in particular, was being used for, just curious. The largest permanent trap you have is a 2" for a shower drain, or for a basement floor drain. Everything else is a slip joint. (1 1/4 or 1 1/2)
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Daniel. 3.5 decades in residential and commercial building. Many fascist.
I changes underground soil pipes starting when I was 26 years old.
Renovated plumbing discharge pipes under slabs many times.
Traps in all DWV lines.
Look in water catch water basins.
Here a water catch basin from a century building. 1900 row home.
As well, back water valves. So what size pipes are soil pipes.
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSF2g5oPoaZ6IeFvU_1up1iNR-roCGHpkmrLZXpopNisJEJRQSNfA
What size is appropriate ?
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Hey Rob!
You & I have called each other a lot of stuff at times.
But I didn’t know you were a fascist. Sorry it slipped out of ya. 
Marc, he doesn’t have a clue and trying to BS his way out of questions directed to him. The original OP’s picture is of a type of commercial bldg. in which I don’t know what he was inspecting, but obviously doesn’t know what he was looking at.
That type of trap is called a running trap and should have been called out to be removed if he was doing an inspection.
“Running traps are still found on many buildings that have yet to have them removed, however, international plumbing code forbids the installation of running traps on any new buildings. The reason is that nowadays there are better sewer traps that can be installed instead of the running trap method.”