Feedback: I filled one with water to see how it works. Just gravity run from hosepipe. It takes 17 liters without it running out the top. To close it, the rubber spout gets foulded in a zig-zag fasion and pushed into the round rubber holder (for lack of a better word), and the four rubber flaps that hold it in, gets tied with strings. This bladder is srong! I stood on it with my 100Kg bod, and even bumped up & down a bit to see what happens....... holds good. Remember, these things were made to be thrown from an aircraft. Then left it in full sun until the watertemp was about 33 degrees C. No prob!
But, that folding spout leaks!
There is no way one can use this for Fuel like that! It leaks about 20 ml in 3 hours without pressure! And it is messy to use. That spout flaps about and the bladder is not easy to hold. Perhaps one can use a strap or something to hang it from one's neck while two hand are needed to climb up the aircraft to refuel a highwing, and two hands are needed to handle the flapping spout!
A sight for sore eyes!!
I'll do a mod when I come back from the bush and see if there is a practical way to solve the leak as well as decant problems. Shall keep you posted.
