Problem with connection of washbasin to drainage pipe

This problem is known to us. We had the same problems with the bathroom furniture in the shower bathroom. Helpful was the sanitary and heating fitter involved in the construction of our house. He gave the decisive tip. The installers from the furniture store were clueless and didn’t even try. We built the entire drain individually and cut out the lower drawer at that spot. We had no other chance.

Moin Moin

The elongated horizontal component will serve the function of the overflow.
No siphon is installed here.
For an exposed siphon for under-ridable washbasins, the height difference of the connections will not be sufficient.
I would solve this with a PVC siphon in 11/4" x 40 mm and a space-saving bend.

Olli

Hello Gregor, Olli is right, it is a drain and overflow valve (Geberit Clou). To install a siphon at your place, the drawer will probably have to be replaced with one that has a cutout, otherwise there is not much space.

Hello again

yes, a drawer with a cutout would also fit.
But it certainly costs time, money, and space, if available at all.

Since I don't really know the space between the drawer and the wall,
with reservation:
With a HT bend 40 mm 87° to the left or right
a PVC siphon 11/4" x 40 mm between the wall and the drawer
and with a space-saving bend 11/4" make the connection between the drain and the siphon.

Done.

Working time 15 min Material 30 €

Olli

What you are missing is a Viega Raumschaffer odor trap 32 570323 so long Scarfy