[theAlphaDuck]

the time taken for standing water to become dangerous to drink depends 2 main factors

1. impurities or particulate matter within the water
2. temperature

and as they gonna fill the pot with impure water anyway...to then leave that in the cooking sun...that which has not evaporated....will be warm..and teeming with bacteria

and yes...EVEN deserts contain natural springs.... did you NOT learn survival or something?....water can be found practically anywhere there are large rock formations.....

also carrying enough water for a 3 day hunting trip...in a clay pot?....
so your going to carry around a 12 litre pot.... EACH!....
and what your gonna just strap that to your back?
and then how do you take your kill home if you are each carrying a pot?

think about it tenchu...can you actually think of anything LESS practical than a clay pot, for a 3 day hunting expedition?

and i'm not arrogant... i'm just right