covediver
Contributor
A very informative article, Hydration for SCUBA Diving and Fitness, appears in this month's issue of California Diver. Might be of interest to some people on this thread. "even when drinking adequately between dives, your body can absorb only between one and one-and-a-half gallons per hour; and fluid loss from immersion diureses may equal the amount of fluid intake. However, a good goal for fluid intake is one liter per hour during activities. You should increase your fluid intake if your urine becomes darker or the volume of urine decreases."