How much water is enough?

There are*different opinions on how much water is enough.* Some sources say drink 6-8 8 oz. glasses a day.* Some say drink a 16 oz. bottle of water every hour, especially in the heat.
There is such a thing as drinking too much water.* Just as with not drinking enough, drinking too much can cause problems.
A good barometer of the adequacy of your water intake is your urine output.* If your urine is dark and strong smelling, you are not getting enough water.* But if it is very light colored, almost clear, and pretty much odorless, you are getting enough fluid, even if you don't drink 8 8oz glasses of water a day.