You can buy on of those plastic kiddie pools for about 15$. I have changed a bladder before , was not that hard to do. Personally if I could not find hole on first attempt I would just replace. I would isolate leak to leading edge or strut and buy a ne one. Not missing one good session is worth the price of new bladder IMO.
you must have money to burn, bladders aren't cheap and the you have to wait for them to be delivered etc, surely quicker to repair than wait a few days for one through the post??
Sometimes, some brands will have you buy a full set, and the price for the frontbladder can be ridiculous high
More important, with so many brands that shops got now, they most often DONT have bladders on stock.
Would be impossible, because there is a different set of bladders for every kitesize.
Multiply this with the number of kites in all brands ranges - and you'll see why it is almost impossible.
Getting bladders by mail order is possible, but the waiting time where you can not use your kite (AND the price) ?
One should also remember, that if you buy a new bladder because you can not find the small hole - you might have the same problem after using the new bladder
Cause, there can be a small thorn or similar stuck in the stitching f.ex - which might poke a hole in the new bladder
But if you have located the hole in your bladder, you will of course feel and check with your eyes and fingers, that there is nothing stuck inside the LE.
On light coulored LE's, one can see this if not in the stitching.
On dark ones, it is not as easy, and better to check.
I remember a guy who had his kite in a really bad thornlike bush.
First he patches every single hole up, so no leaks in the bladder (that was maybe 30 holes or more ?).
Reinserted - and when pumped it still leaked like crazy
(of course because small thorns were still all around in the LE)
He bought a new bladder, and even AFTER having felt with his fingers and removing anything inside, and having used a brand new bladder - it was still a "porcupine" and leaked like crazy.
He gave up and ditched the kite, seriously
(and bought a new one)
So these small thorns in a huge number can be REALLY annoying...