Quick and dirty I add 1/2 pack of salt and 1 pack of sugar to 1 litre of water. I actually have little packs of table salt and sugar in my emergency survival kit.
However you'll still need to get those other 3 electrolytes in some other way but the salt and sugar water thing works in a pinch in emergencies.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE