Hi

I am reasonably adept at diy but know nothing about plumbing. My
mother's flat has a water leak that I need to fix quickly. It
concerns the pipe to a cold water tap. The pipe looks about 7 or 8 mm
diameter and is copper. The leak is at a right-angle connector. The
connector is metal and is push-fit.

How would I remove the connector and what sort of connector should I
use to replace it with?

I would be very grateful for a quick reply.

BR

David