This would be a likely option if you have reason to believe that filtering the water would not be enough. Make sure to check out Instructables about water filtration, it's useful!
Step 1: Supplies!
- A handful of straws (maybe 3-5) (bendy straws are best)
- A sharp implement (My Zebra F-301 was used in this project)
- Two cans of soda (And I'd like to hear about why Dr Pepper works best for this)
- A source of active heat (hot enough to boil water)
Some foil is recommended to make this project easier and more efficient, but is not vital to its operation. I will demonstrate how to use it if you have it. For this Instructable, I'll demonstrate using a campfire as my source of heat.
Step 2: Drink Dr Pepper
Just kidding, it's the easiest part.
The other can will be used in a more... Special way.
Step 3: Puncture the Other Can
Drink all the Dr Pepper through the tiny hole. Make sure your friends are watching and taking pictures, because this is rather entertaining. Be careful to avoid denting the can.
When the can is empty, wiggle the sharp implement in the hole to widen it very carefully. The object here is to get the hole wide enough to cram a straw into it, yet still small enough that steam won't escape around the straw.