Repair Issue - Plumbing for Dishwasher

[foldorcrumple]

Hi everyone, wondering if anybody has any advice on this my latest issue as a reluctant and angry tenant!

 

We recently moved into a house which previously had a dishwasher installed. We were told that the dishwasher was broken and would not be replaced. We said it was fine as long as we could install our own dishwasher, which the agent confirmed was fine. We installed it, but then the connection was a bit loose, and the drain pipe leaked and is now causing loud noise from vibration because it's loose. It's disturbing the neighbors. The LA sent a plumber out who glued the threads of the drain pipe to try to get it water tight, but it's still loose enough to vibrate, causing 'screaming' sounds. The problem is the drain pipe needs a proper joint fitting to attach the dishwasher drain hose to the house's plumbing. This is not a plumbing part that comes w/ a dishwasher; it should have been on the existing plumbing and was obviously removed when the broken dishwasher was taken out. (Hubby said it looked as if it had been snapped off, or maybe hack-sawed off.)

 

We are now in a disagreement w/ the landlord over who should pay for the repair. So who is responsible for paying to have the proper joint fitted onto the drain pipe? Does this qualify as a plumbing issue that the landlord is responsible for, or an appliance issue that the tenant is responsible for? And if it's a tenant's responsibility, what is our liability if something goes wrong later as a result of the repair?

 

Thanks for any advice/comments!