ᐅ Question About Kitchen Drainage and Plumbing

Created on: 25 Apr 2016 19:35
T
Tommes78
Hello everyone,
we have received our detailed construction plans. The issue concerns the drainage of our kitchen. Underneath the kitchen is our basement living area made of waterproof concrete. Now, the drainage from the island with the sink is planned to be routed downwards into the basement room below (which is a living space because it’s a basement living area) and then further to an exterior wall, from where the pipe will be brought down from the ceiling. I hope I explained it clearly?!

I find it quite unattractive to spoil the nice living space like this, since a 10cm (4 inch) pipe will run across the room, and then the pipe will also go down along the wall from the ceiling and will need to be boxed in.

Is there no more elegant solution, or does my builder just want to choose the cheapest option for themselves? My layperson’s opinion would be to place the drain pipe inside the ground floor ceiling and run it along a room edge before going down. From what I understand, I can’t avoid the boxing-in in the basement due to the waterproof concrete?

Thank you in advance for your help.
RobsonMKK26 Apr 2016 15:58
I would approach the issue from a different angle and ask why it should be a 70.
You would have checked at home and noticed that the pipe is not 70, and now you are considering it.
T
Tommes78
26 Apr 2016 19:29
Well, whether it's 50 or 70 doesn't really matter to me, since I definitely don't want the pipe to be boxed in within the basement space. I would suggest having the pipe installed between the ceiling and the screed, just as Uwe82 described.
C
Caspar2020
26 Apr 2016 20:33
Tommes78 schrieb:
place between ceiling and screed

Hmm, the question is what type of floor construction he has.

For example, if there is 62mm (2.4 inches) of screed surrounding the underfloor heating and only 40mm (1.6 inches) of floor insulation below, it will be difficult to hide any pipe with the necessary slope without altering the ceiling accordingly, or the screed would have to be thinner. None of these options are ideal.

In this case, the boxed-in area is basically just a visual limitation.
wrobel26 Apr 2016 22:03
Hello

Assuming that the unventilated pipe length exceeds 4 m (13 feet), the dimensioning with DN 70 is already correct.

Would it be possible, after consulting the structural engineer, to route the pipe within the concrete ceiling?


Olli
T
Tommes78
26 Apr 2016 22:16
Good evening Olli, I want to follow up on this with our site manager tomorrow.