Designer Creates Fake Rocks That Help Save Water

water displacement objects rochus jacob image
'Water displacement objects.' Images: Rochus Jacob via designboom.

Putting a brick or a bottle filled with pebbles in your toilet tank is well known as an easy way to save water -- about a half a gallon with each flush. But sometimes a little style is needed to entice people to take such basic measures -- something designer Rochus Jacob provides with his latest elegantly simple creation.A shortlisted entry in the Incheon International Design Award (IIDA) 2010 competition, Jacob's "water displacement objects" are as straightforward as they sound: white, rounded stone-like pieces of recycled plastic that allow people to take a full bath with 50 percent less water.

Drastic Reductions Without Big Behavior Changes
As the designer, who won the grand prize in last year's IIDA awards with his thermodynamic cooler that relies on evaporating water rather than electricity and his Murakami chair, a rocking chair that powers its own reading lamp, explains:

I always loved taking a bath but felt guilty about the consumption. By adding volumes to your tub, the amount of water used can be drastically reduced without radically changing behavior... I collected stones at the beach that are just beautifully shaped by nature. 3-D scanning them allowed me to manifest their form in a prototype.

Though the concept behind Jacob's creation is far from new, the attractive look of the objects makes them appealing to a broader public that might not want to wear their eco-consciousness on their sleeves. Still, I also can't disagree with one online commenter's suggestion to "displace the water with an extra body in the tub. It will be more fun than some rocks."

More on Water Conservation:
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How to Turn Local Water Conservation into Good Business (Video)
San Diego Sets Example for Water Conservation, Curbs Consumption by 11%
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