solotripper wrote on Jan 12^th, 2011 at 4:46pm:

Simple rule, drink till you pee clear. Works unless your taking meds/vitamins that might color you urine. Then you need to look for enough volume on the outflow ;)

And if you need an alternate measurement (for reason that might include those listed above), you might try the pinch test.  Pinch the skin on the back of your hand when you know you are hydrated.  Watch how quickly your skin "rebounds" to the point it looks normal again.  This is your baseline.  In the field, repeat the test.  If your skin is not rebounding as quickly as normal, you are dehydrated.  Continue to take in fluids until you return to your baseline.

But, don't assume that you are hydrated as you sit there behind the keyboard.  It is not uncommon for us to be slightly dehydrated during our daily lives.

dd