I'm fitting a new shower pump and bought a 22mm warix flange as advised in the installation guide, but when I disconnected the flange on top of the cylinder it turned out to be a 3/4" outlet. The warix is obviously 1" does anybody know if there is an adaptor available, 1" female to 3/4" male, that will allow me to fit it. The guide states that all pipes should be of 22mm and if I fit a 3/4" warix obviously the outlets are 15mm. And it's bloody Sunday 