Home / Forums / Melodica construction, repair and maintenance / Air Leak in Hohner Piano 36 / Reply To: Air Leak in Hohner Piano 36 Reply To: Air Leak in Hohner Piano 36 November 10, 2020 at 9:10 pm #11835 Melodica-MeParticipant Are you currently missing the cap, if so that’s where your leak is coming from if so wrap with plastic wrap and use a rubber band to hold the wrap in place temporarily MM