The inflate valve can be strectched by other pumps, especially when they use your gear without your permission. Then the dump valve does the job.
. Big kites make leaking valves more prone, unless ypuve been riding big kites to upgrade
You respect your kite, and after 5-10 years the valves will still be in good condition, no need to trade up.
You respect your kite, and after 5-10 years the valves will still be in good condition, no need to trade up.
I find about 100 pumps finishes the kite off on the inflate valve. Fully swelled up.
But 1 pump in the deflate collapses the whole kite and hard to pump up again.
But if you roll her both ways you keep the dump valve open and exposed for easy access makes for easier pumping. 
