I've written before about how health department requirements to attach drinking fountains to sanitary sewer lines adds unnecessary cost and water waste to a drinking fountain. At this lovely park in Piedmont, California, though, the water drains right into the sand play area, making drainage water a fabulous ingredient in play:
The water bubbles happily down a line of boulders. And everyone knows that wet sand is way more fun than dry sand! This double-duty fountain saved money, enhances play, and likely keeps all the playing kids well-hydrated!