bath and sink sharing same drainage

[mickfitz]

Hello

I'm refitting my bathroom and in the process of removing all the old stuff. I intend to hide all the pipe and drainage when I fit the new stuff as I'm going for a minimalist kinda look.

I've noticed that the sink and bath have their own seperate drainage running into different points in the soil pipe. Is this necessary?

It would help me big time if I can join the 2 different drains before they go into the soil pipe therefore keeping the pipe work down to a minimum and hidden. I will be using hepvo's for both the bath and sink.

If I haven't been clear I can add a sketch to help explain

Thanks in advance ... Mick

 

[jona]

as long as you get the correct fall down to the stack you should be o.k.