There are sealant/coating kits for sealing old gas tanks, I thought there might be something like that for sealing a jerry can with food grade lining.
Yes, you can buy a water can for $50+, but this fuel can was part of a package deal, less that $25 for one can..... I wanted 2 more fuel cans and it was cheaper to buy 4, sell 1 and have 3 for myself....
I will trade a fuel can for a blue water can.....