Usage Note
Leerrohr is a hollow plastic pipe installed empty in walls or floors during construction so that cables or pipes can be threaded through later without opening the wall again. It is standard practice in German new-builds.
Examples
"Der Elektriker legte Leerrohre in der Wand, damit später Kabel nachgezogen werden können."
Natural Translation
The electrician laid conduit pipes in the wall so that cables can be pulled through later.
Literal Translation
The electrician laid empty pipes in the wall, so that later cables pulled through can be.
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