Broomerang said..
Folks. . . I aint gonn spill the beans on the brand coz I love the kite and what it does for me (when it's not leaking). . . . appreciate the points RE hot water etc. A mate here also came up with a super cool valve trap idea using sticky sale repair cloth.
Have had a prompt reply from the point of sale and tip-top back up service with apologies and a new bladder in the post.
Happy Days.
www.airtimekite.com/airtime-kite-bladders/valve-repair/valve-trap/valve-trap.html This is a great universal solution for any valve problems of any type/size on any kite. I had a chance to try it recently and was impressed by the results. Allows you to reuse your old valve and have a solid permanent fix. Follow the instructions closely, make sure you clean the area very well and get rid of all the glue residues (you may need Meth spirits for that). very fine grit Sand paper also helps to get a smooth surface.
TIP: avoid valve repairs with glue, it will never last very long and can be a pain to remove the old glue to do a proper repair.