Depends if said taps are at one end or in the middle against the wall!
Usually not but can be a bit of a fiddle. [plumberspeak for £120]
AFAIK all plastic 110mm pushfit soil/drainpipes have the same standardised OD: you can mix and match fittings.
More importantly, how do they get the champagne cork in?
Any here ever managed to reseal a half-finished bottle with the original cork without...
On underground foul drainage?
Inspection/rodding access required at every change of direction or gradient.
2 Not a make i recognise but the good folk here may help
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