Kevin's crews drink enough water. That is rarely the gap. The gap is what happens to a body core temperature when the air around it never moves and never cools, no matter how much fluid goes in. Hydration replaces what a crew sweats out. It does not lower the ambient heat load they are standing in for eight hours.
That is where jobsite cooling equipment comes in, not as a replacement for hydration protocol, but as the other half of a real heat stress plan.
Here is what evaporative coolers and industrial fans actually do, which setup fits which jobsite, and how to build a cooling plan that works alongside hydration instead of assuming water alone will carry the shift.
An industrial fan moves air. An evaporative cooler moves air across water and drops the temperature of that air before it reaches the crew, which matters most in dry heat where evaporation is efficient.
Not every site needs the same setup. A loading dock with cross-breeze needs less than an enclosed warehouse bay running at 95 degrees by noon.
Cooling equipment and hydration are two halves of the same problem, and ordering them separately usually means one half arrives late. Hydration Depot carries both, so a heat stress plan for the summer does not depend on three different vendors syncing delivery dates.
Cooling and hydration work together, not apart. Build the full plan with Hydration Depot.