ᐅ 2 faucets, but only one water supply and drain connection

Tx-25 schrieb:

Yes, the wiring has been installed so far.

I still haven’t understood whether the walls are already closed or still “open.”

Therefore -> Picture

Are we talking about the supply line or the drain? First, you mention two faucets, then a 50mm (2 inch) pipe, which doesn’t add up.
Yes, a picture would be helpful...

There is a suitable solution for everything. For your cold water supply line, simply use an angle valve with two outlets, like those used in kitchens for cold water and dishwashers. Of course, there is the same for hot water, where you do it almost the same way.
And for your wastewater, there are T or Y fittings, each of which connects to a trap...

The same happened to us during the selection process; we didn’t think about it and then my wife wanted a double sink.

I installed a double angle valve on both the cold and hot water lines, which I got at the hardware store.

And on the drain, a double HT distributor.

So far, so good.

Since we have two drawers next to each other, the divider was directly above the drain...

So I had to cut the cabinet a bit until it fit. But it has been fine for 5 years now.

I’ll send a picture later.
The wall is completely closed, but without tiles, since we are not using tiles around the washbasin.
I’m afraid this might cause some concern.
We will paint the area twice with latex paint (after an initial primer coat).

To explain again: We have supply and drain pipes installed inside the closed wall.
From the supply line, I now need to split two lines to supply two faucets. So far, I haven’t seen any problems with this. We already use this setup in the kitchen because we have a side-by-side refrigerator with a fixed water connection there.

I’m still looking for a solution for the drain.
I have been looking for exactly what @tomtom79 described.

I didn’t find anything like that at our local hardware store.
So I guess I’ll have to check the larger stores.

tomtom79 schrieb:

Since we have two drawers side by side, the separating strip was right at the drain...

So I cut a bit of the cabinet until it fit. But it has worked fine for 5 years.

I can already see that coming for us as well.

Background on the timeline:
The upstairs bathroom isn’t completely finished yet (new build), and the washbasin hasn’t been held up to the wall or installed yet.
I just wanted to take care of the upcoming pipework early, since I want to use the bathroom as soon as the washbasin is installed.

Since we moved in (01.06.20), the bathroom has still been a construction site because the plumber forgot to install a part in the concealed shower valve. Yesterday, the first demolition work already took place in the new build.

Ah, just try googling "drain fitting double washbasin" – you'll find countless options...