"The Pure-Pumper has been a lifesaver! The 18v clip in batteries are awesome. No more hassle with burnt out fuses or messy wires. The Pure Pumper can be moved with ease, the no flat tires are great, and the unit is durable. The water pressure from the hoses is slower forcing the athlete to actually drink the water! This means less water wasted and very few refills. Add the Kozy cover and even on the warmest days the water stays cold! Athletic Trainers are busy enough at practice to have to worry about keeping the water filled and cool. Let the Pure- Pumper do that" You can't beat this hydration unit. Athletic Trainer approved!