Really nice water shader and art.
It felt like it was missing player feedback. Also, placing the refill station is a different area than the update station. It took me a while to figure out that the refill station and update station were different. It would have also been more interesting if I had to go to a different spot each time for the refill. Running back and forth got a bit repetitive.
Not bad for a quick submission and that water shader is sick!