ᐅ How can you identify drainage pipes embedded in walls or floors?
Created on: 18 Aug 2021 17:15
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Heidi1965
You’ll probably laugh at me again:
In our hallway, the drain pipe from the upstairs apartment runs inside the wall. It’s not exactly centered. I have a photo of the shell construction here. The entire wall is 3.90 m long (12 feet 10 inches). How long do you think one of those white blocks is?
Problem: I bought a wardrobe, and the middle part needs to be fixed to the wall with anchors. It would be really unfortunate to hit the drain pipe while doing that. I believe the calcium silicate brick is 24 cm wide (9.5 inches). So I guess I have to roughly count the blocks. Or is there another method?

In our hallway, the drain pipe from the upstairs apartment runs inside the wall. It’s not exactly centered. I have a photo of the shell construction here. The entire wall is 3.90 m long (12 feet 10 inches). How long do you think one of those white blocks is?
Problem: I bought a wardrobe, and the middle part needs to be fixed to the wall with anchors. It would be really unfortunate to hit the drain pipe while doing that. I believe the calcium silicate brick is 24 cm wide (9.5 inches). So I guess I have to roughly count the blocks. Or is there another method?
Heidi1965 schrieb:
What do you use for tapping? And can furniture assemblers do something like that? With your hand or carefully with something hard. A wooden spoon, a paintbrush handle, a broomstick, a rubber mallet, a screwdriver handle...
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wdreizehn18 Aug 2021 20:37Hello,
I would also expect that the position of the soil pipe could be determined by tapping the wall.
If not:
There is a very good photo where, using a simple proportion calculation and the known distance between, for example, the left sockets in reality, you could determine the central distance to the soil pipe from the starting point:

Here, as an example, assuming the distance between the two left sockets is 4 m (13.12 ft) in reality and a measured distance on the photo of 22 cm (8.66 inches), this results in a central distance to the soil pipe from the left socket of 2.18 m (7.15 ft). Due to perspective, there may be deviations, but it should be accurate enough.
Best regards
Guido
I would also expect that the position of the soil pipe could be determined by tapping the wall.
If not:
There is a very good photo where, using a simple proportion calculation and the known distance between, for example, the left sockets in reality, you could determine the central distance to the soil pipe from the starting point:
Here, as an example, assuming the distance between the two left sockets is 4 m (13.12 ft) in reality and a measured distance on the photo of 22 cm (8.66 inches), this results in a central distance to the soil pipe from the left socket of 2.18 m (7.15 ft). Due to perspective, there may be deviations, but it should be accurate enough.
Best regards
Guido
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Heidi196522 Aug 2021 12:31Thank you very much for the helpful tips. Our plumber located the center of the drain pipe and marked it with tape on the floor. The wardrobe is now hung/placed. The tape will remain there forever under the cabinet for all future generations.
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