Odd waste pipe on a toilet.

[Agile]

This was sent to me by a friend.

You will see in the video that the soil pipe disappears into a bricked off corner.

This is on the first floor of a four story of a block built around 1900.

Above the soil pipe there is another pipe coming up and bending back towards the vertical soil stack hidden inside the corner of the bathroom. My question is what is the purpose of the second pipe ?

Unfortunately the video sent to me is not one of those which is portable. So you have to imagine a pipe going upwards for about 400mm just before it enters the wall and then turning to go horizontally into the wall.

 

[pcaouolte]

You will see in the video

Unfortunately we can's see a video at all.

 

[pcaouolte]

Unfortunately the video sent to me is not one of those which is portable. So you have to imagine

Ah, I see, we have to imagine seeing a video of some unusually placed pipes. Can you at least get a few relevant frames from the video and post them as photos?

 

[CBW]

Vent pipe is what I imagine

 

[Nige F]

+1 for vent pipe

 

[Hugh Jaleak]

As above, it will be a vent pipe. The Victorians used to fit vents from the outlets at the backs of WC pans, going upwards to reconnect with the stack slightly further up.

Good example on a shoe factory near me. https://maps.app.goo.gl/o6pU8ur4c2jg4vd6A

 

[HERTS P&D]

+2 for vent pipe.

Andy

 

[Exedon]

Victorians? I was still fixing 2 pipe soil and vent pipes well into the 80s L C C pattern cast iron lead run calked joints copper vent pipes .
Underground drainage was cast as well

 

[Bod ...]

You still see this on old London buildings with a good few floors.

It was a practice that the Canadians where still doing 30 years back. I did this sort of work myself. Would imagine it's still happening in North America