If you have a water bottle, put the spray inside, make holes inside and put 2 matches on it.
To reload it (if you made it after the first time - the bottle is not anymore to use for drinkwater) you Need only the spray and 2 more matches and you have to collect the used bottle again from the ground.

Each time you use it, the bottle get more damage
(starting by the bottle Status (here is the bottle pristine as an example)
0x used: pristine
1x: worn
2-3x: damaged
4-6x: badly damaged

7x: ruined (Not rechargeable. Out brannd)