I'm in the process of changing a toilet. The toilet I am removing is
connected to the soil stack via a 90 degree elbow pan connector. The
outlet of the pan I am installing (bought from B&Q) is about 4 inches
further towards the wall, meaning the 90 degree pan connector
(Robomatic -B&Q) will miss the entry to the soil stack. I've tried a
flexible pan connector(Robomatic B&Q) and it would work but would not
be exactly hidden as it would have to balloon out to the side. The
only other option I can think of is shortening the soil stack - which
a) may be difficult as it runs under a partition wall and under the
floor of another room and b) not exactly appealing to me as I'm none
too keen on poo!

Does anyone know of another way around this, like a 90 degree
connector with a shorther knuckle? Can I bend the 90 connector in any
way? Failing that how much a plumber would charge for messing with the
soil stack?

Cheers!
Matt