Half sink waste challenge - IDEAS PLEASE???!

[CC81]

Hello, hope someone can help.

Just got a new sink, with an incorporated half sink. Need to connect the half sink waste to the existing setup (main sink waste 40mm with double nozzle adaptor for washing machine and dishwaster waste). ***SEE IMAGE BELOW***

A T-junction seems the best answer, but where could it fit, without pushing the u-bend too far down to reach the exit? And connections are also a problem... mostly screw-on (u-bend and nozzle adaptor) - but available Ts seem to be push fit OR compression. Not screw-on.

Thought about maybe putting the nozzle adaptor on the half sink, then using a flexible waste pipe to a T-junction, that connects the main sink to the u-bend. But that's where the issue with connections arises.

Any advice will be much appreciated...

 

[stani]

These sinks normally come with their own trap kits.

 

[CC81]

These sinks normally come with their own trap kits.

It did, but only for the overflow. Nothing for the half sink. It's a Franke Ascona 1.5 sink - as you can see, suggested trap kits would have a u-bend that's too low for the exit pipe (out the wall):

https://www.google.co.uk/search?q=f...ved=0ahUKEwi9pJayrL7OAhVbF8AKHYrtAswQ_AUICSgC

 

[MOSSEP]

Fit a 1 1/2" trap to the half sink and tee it into the black waste pipe that goes out of the wall.

 

[stani]

Put your T in the black waste, then use an adjustable trap with short pieces of waste pipe and 1 elbow.d

 

[snowhead]

Stick another trap on the half sink, then Tee in the pipe to outside.
Probably elbow off the trap and 45 straight after then down to Tee.

 

[stani]

3 expert answers

 

[Riley]

http://www.NoLinkingToThis/p/mcalpi...6GS3ItCGABIHMKL6qGdk8ShiG0zAUIFsixhoC4HHw_wcB

 

[CC81]

Thanks all! You are wonderful

 

[JCplumb]

http://www.NoLinkingToThis/p/mcalpi...6GS3ItCGABIHMKL6qGdk8ShiG0zAUIFsixhoC4HHw_wcB

I'd definitely go with that.
The hot/cold pipework in the original picture is astounding, I'm sure there are actually more fittings than pipe there, must have cost a fortune

 

[kay-jay]

Loks like it was installed by a push fit rep

 

[stani]

It is clipped though, more than you see with copper.

 

[PlumbBobBob]

when you re do it try and get the washing machine and dishwasher waste pipes coming in higher up, so that they flow down to the trap.

 

[CC81]

[*response deleted* - replied in the wrong place]

 

[CC81]

Yeah, the DW and WM outlets need amending. Thanks.

 

[CC81]

Loks like it was installed by a push fit rep

Haha, it was me! Had spare fittings to use from a previous project - and wanted everything neat and isolated separately (tap, outside tap, washing machine, dishwasher). It's all soldered copper below cupboard level, though