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BenutzerPC12 Feb 2017 11:27Hello everyone,
During the planning meeting with the architect from our general contractor, we discussed the issue of the wastewater downpipes. It seems the downpipes are planned to be surface-mounted. Is that correct? Why aren’t the downpipes, for example, planned to be inside the exterior walls? We have 2 full floors and an attic floor. In the attic, there is a bathroom. A pipe has simply been laid continuously from the top down. This means that, for example, on the 1st floor the pipe runs down the inner side of the house wall, right in the middle, including in the living/dining room. On one hand, this limits possible furniture arrangements (the pipe measures 20 x 20 cm (8 x 8 inches)). Another question: I don’t want to sit in the dining room and hear the toilet flushing.
What are common practices in planning these installations: installing the pipes flush with the wall? Does the downpipe have to run fully vertically, or can it be routed somewhat horizontally on the individual floors, so it can “snake” through the building?
During the planning meeting with the architect from our general contractor, we discussed the issue of the wastewater downpipes. It seems the downpipes are planned to be surface-mounted. Is that correct? Why aren’t the downpipes, for example, planned to be inside the exterior walls? We have 2 full floors and an attic floor. In the attic, there is a bathroom. A pipe has simply been laid continuously from the top down. This means that, for example, on the 1st floor the pipe runs down the inner side of the house wall, right in the middle, including in the living/dining room. On one hand, this limits possible furniture arrangements (the pipe measures 20 x 20 cm (8 x 8 inches)). Another question: I don’t want to sit in the dining room and hear the toilet flushing.
What are common practices in planning these installations: installing the pipes flush with the wall? Does the downpipe have to run fully vertically, or can it be routed somewhat horizontally on the individual floors, so it can “snake” through the building?
So... this is not standard practice. A rainwater downpipe from the gutter on the outside of the house, yes. But wastewater drainpipes should actually be built inside the wall according to current standards. Sure, in 1925 they did things differently, but back then electrical wiring was also surface-mounted.
Did you really understand that correctly? I can hardly imagine it.
Did you really understand that correctly? I can hardly imagine it.
Curving the pipe would be problematic for efficiently and quickly flushing waste downward. There is a risk that debris could get stuck at a bend – which would have disastrous consequences.
This pipe cannot be installed in an exterior wall or any other load-bearing wall because, first, the structural integrity could be compromised, and second, the insulation in that area would be affected.
This is just my layperson’s opinion.
Additionally, if the pipes are hidden inside a wall, there is a risk that someone might unknowingly drive a screw or nail into it, potentially causing predictable water damage.
When a house is well planned—for example, placing a bathroom or toilet not directly above living areas—the toilet is usually positioned neatly in a corner of the bathroom. This ensures that the soil stack on the ground floor does not interfere with furniture placement and exits instead in a guest bathroom or utility room.
This pipe cannot be installed in an exterior wall or any other load-bearing wall because, first, the structural integrity could be compromised, and second, the insulation in that area would be affected.
This is just my layperson’s opinion.
Additionally, if the pipes are hidden inside a wall, there is a risk that someone might unknowingly drive a screw or nail into it, potentially causing predictable water damage.
When a house is well planned—for example, placing a bathroom or toilet not directly above living areas—the toilet is usually positioned neatly in a corner of the bathroom. This ensures that the soil stack on the ground floor does not interfere with furniture placement and exits instead in a guest bathroom or utility room.
Yes... when there are multiple floors, bathrooms/toilets should be stacked vertically. However, where I am sitting right now, there is a concealed soil pipe in the wall under plaster running from the shower bathroom above me down to the heating room below and then out into the shaft. The wall is a cavity wall, made of Poroton blocks plus facing bricks. There is an inspection opening in the wall.
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BenutzerPC12 Feb 2017 12:39OK, understood. However, having a downpipe right in the middle of the dining room is also inconvenient. We are planning a semi-detached house, so the design options are somewhat limited. By the way, we have several downpipes. I wouldn’t be too concerned about the bathroom wastewater discharge running 1-2m (3-6 feet) horizontally. You are definitely right about the toilet, though.
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toxicmolotof12 Feb 2017 13:12That is why bathrooms on the upper floor are usually planned above the utility room, the toilet, or a storage room on the ground floor, rather than directly above the living room or dining area.
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