Home / Forums / Melodica construction, repair and maintenance / Newbie Hohner Piano 36 owner water key questions / Reply To: Newbie Hohner Piano 36 owner water key questions Reply To: Newbie Hohner Piano 36 owner water key questions August 7, 2014 at 7:04 am #2932 QuetscherParticipant Not for me – I just ordered 3 of them some weeks ago to replace the old and broken caps; but honestly I played my Piano 36 quite often without cap because I loved the difference in sound (lighter and more airy).