Joining soil pipes together

[billybookcase]

I need to run a 4 metre soil pipe from an understair cupboard to the outside to join up with the soil stack.
I don't have enough room to manoevre 4 metres, can I just cut it in 2 and then join it together again once under the floor?
Is this push fit adapters or solvent weld?
Also joing it to the soil stack outside, do I need to cut the soil stack and insert an adapter, is this solvent weld work as well?
Thanks.

 

[Bahco]

Can I just cut it in 2 and then join it together again once under the floor?

THIS will do the job.

 

[billybookcase]

Thanks Bahco.