Ozone have identified a potential issue with the large black inflate/deflate valve. The black valve is purchased from a China based manufacturer, and the thread quality has been found to be inconsistent. This can lead to the valve leaking slowly and/or cross threading easily.

Ozone is committed to customer satisfaction and have produced a mould to manufacture their own inflate valve. This valve is RED and will be provided free of charge to all Ozone 2011/2012 kite owners that have the black boston valve on their current kites.

All Ozone dealers have adequate stocks of the RED valves to give to customers for free.
Ozone news article here (includes vide on how to replace the valve)

ozonekites.com/water