Retro Week - Day 3

Reaching way back to my College of DuPage years on this one - Circa 1999. Found a drafted contraption on vellum slipped into an old sketchbook. Im sure this contraption had some great and fantastic use which i have long since forgotten. Or have I?


Rain water runoff from a memorial I designed would funnel down and collect into this, and amonst the pouring rain would divert the water into these channels which would slowly release trickles of water out of the two holes! You could use the lever to unclog the holes with pegs mounted on another surface. Why this technique is not implemented today is completely beyond me!