u/Redbeard_Rum

I've moved into a new place and want to replace the current washing machine with my own one. The existing machine waste water pipe is connected to a y-shaped pipe it shares with a dishwasher (main photo), but my washing machine has the kind of tuck-it-in end in the inset picture. It I want to attach my washer to the setup pictured here do I cut off the end of the pipe to make it fit the above set up or can I just fit it into the above setup as it is?

I realise I could just try it and see, but I'm reluctant to do that without first asking advice, in case I mess it up and make things worse. Cheers.