IM WANTING TO FIT A ONE PUMP SYSTEM TO MY 06 GK SONIC... IM WANTING TO KNOW IF THERE IS A KIT THAT U CAN BUY TO RETRO FIT TO A KITE WITHOUT A ONE PUMP SYSTEM... OR THERE A PERSON THAT COULD DO IT FOR U? AND AT WHAT SORT OF MONEY$$$$$ AS I GUESS U WOULD HAVE TO STICTH ROUND THE HOLES 4 THE ONE PUMP VALVES??
pffft - after just buying my 06 sonic and trying my first kite WITHOUT one-way valves, i don't know why people want them! it pumps up about 10x quicker and easier without the valves in there, gets you out on the water faster. with a one-pump system, you're adding a whole bunch of them in series with the main bladder.
my sonic takes 5 minutes less time to pump than my old 10m C kite, and it's heaps easier even with one more baton.
i reckon moti levy could do it if you were really that keen though.