Looking for some advice. I just installed this Quoss shower mixer transformer.
Installation seemed to go fine, using this installation video
Shower was used 3 times without issues, but then suddenly, 36 hours after installation and while not in use, it started leaking from the mixer. See video here
I have taken everything out and reinstalled but still leaks. I have also tried changing to the deeper extension as outlined in the video, even though I don't think it was necessary as my pipes were not too far from the wall.
Any advice greatly appreciated
Call a licensed plumber