Unscrew the button or screw that holds the tackle set up, clear away the manage, then unscrew or remove include plate. This exposes the system and spindle. If there is water in the top of spindle plus the outer entire body is soaked, it’s an indication the O-ring is leaking.  At https://localplumbernearme43108.creacionblog.com/34520228/kitchen-plumbing-fundamentals-explained