Having trouble with a Trevi TT shower valve. It comes with the inlets and
outlets threaded to take MI couplers but can I heckers like find fibre
washers of the correct size to seal coupler to valve body which would be:
Internal diameter 27mm
External diameter 33mm
Found a specialist who can make em - but due to minimum quantities/labour,
you're looking at ?40! (and I just need 3 not 25!).
I've got some that loosely fit but as I'd have to use two to get the
thickness, it will leave the joint a bit iffy I think.