Planning of wastewater downpipes

  • Erstellt am 2017-02-12 11:27:23

BenutzerPC

2017-02-12 11:27:23
  • #1
Hello everyone, in the planning meeting with the architect of our general contractor, we came across the topic of the wastewater downpipes. It seems that the downpipes are planned to be surface-mounted. Could that be? Why are the downpipes not planned, for example, inside the exterior wall? We have 2 full floors and an attic. There is a bathroom in the attic. So far, a pipe has simply been laid continuously from top to bottom. This means, for example, that in the 1st floor the pipe runs down in the middle of the interior wall, just like in the living/dining room. On the one hand, this affects possible furniture arrangements (the pipe measures 20x20 cm). Another question: I don’t want to sit in the dining room and hear the toilet flush. What are common practices in planning: installing the pipes flush with the wall? Does the downpipe have to run completely vertically or can it also be routed somewhat horizontally on individual floors and thus "weave" through the building?
 

Nordlys

2017-02-12 12:16:18
  • #2
So... that's not usual. Rainwater downpipe from the gutter on the outside of the house, yes. But the wastewater downpipes should actually be inside the wall according to today's standards. Sure, in 1925 they did it differently, but back then the electrical lines were also surface-mounted. Did you really understand that correctly? I can hardly imagine it.
 

ypg

2017-02-12 12:17:43
  • #3
Serpentine routing would be problematic to effectively and quickly transport the s*** down with a flush. There is a risk that something could get stuck at a bend – the consequences would be catastrophic. You cannot place this pipe in the exterior wall or any other load-bearing wall because otherwise a) the static structure and b) the insulation would be at risk here. My amateur opinion Also: if they are hidden in a wall, one could unknowingly put a screw/nail exactly there, which would also result in a foreseeable water damage. If a house is well planned, e.g. a bathroom or toilet not above the living area, then you also plan to place the toilet nicely somewhere in a corner in the bathroom so that the soil pipe on the ground floor does not interfere with any furnishings, i.e. then it comes out in the guest bathroom or utility room.
 

Nordlys

2017-02-12 12:32:48
  • #4
Yes... if there are multiple floors, bathrooms/toilets should be stacked on top of each other. But: Where I am sitting right now, a soil pipe from the shower bathroom above me goes through the wall under plaster into the heating room below me and then out into the shaft. It is a double-shell masonry, Poroton plus clinker. There is an inspection opening in the wall.
 

BenutzerPC

2017-02-12 12:39:55
  • #5
OK, understood. However: a downpipe right through the dining room is also stupid. We are planning a semi-detached house. You are not so free in the planning there. By the way, we have several downpipes. I wouldn't see the discharge of the wastewater from the bathroom as so critical if it runs 1-2m horizontally at some point. You are clearly right about the WC.
 

toxicmolotof

2017-02-12 13:12:32
  • #6
Therefore, bathrooms on the upper floor are usually planned above the building services, the WC, or a storage room on the ground floor and not directly above the living or dining room.
 

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