Does anyone know how you would go about coupling a 22mm (or possibly
> 32mm if my route is > 12m - touch and go) copper waste pipe from a
> Saniflow to an old cast iron soil stack. As it stands I would have to
> drill a suitable hole in the stack, then couple it some how. This is
> the bit I'm unsure about.
>
> The only complication is that I only have access to one 'side' of the
> stack. There has been an extension on the house and the soil pipe now
> runs down partially behind the wall of the extension:
>
> __________________ house wall
> ______|O -
> |
> | |
> |
>
> My rudimentary diagram does not show that the 3 walls that surround
> the stack are very tight against it and all cemmented up to the pipe,
> so I don't think I could get any strap type fitting round the pipe. > > Cheers