Depending on the type-
One fitted in the top centre of a cistern lid will likely unscrew (gently) to allow you access to the cistern. Or it may be connected by a cable which operates the siphon, this will be clipped onto the button from underneath. There should be a slide clip on the connector which can be moved to allow the cable assembly to separate from the push button.
Happy to assist of you need further help.
Projects that add value to your home - Phil Spencer
Looking to extend your home but don't know where to start? Property expert and Rated People ambassador, Phil Spencer, shares some thoughts on why loft conversions are such a popular way to create more living space and add value to your home.