Harvesting rainwater is key for any town or city determined to use its water sustainably. Rainwater HOG is a rain rescue and storage tank designed as a water-filled building block. It was conceived and developed by an Australian architect, Sally Dominguez, who had been designing drought-ready buildings but was frustrated by a lack of options for domestic scale urban rainwater catchment. HOG’s flat walls, and use of through-holes as bracing, allow water to flow in any direction. This enables HOG to store water horizontally and vertically. Because HOG modules are deliberately slim and compact, they are easy to retrofit into the tightest spaces. As Dominguez explains,”the problem with a drought is that when it rains, it often gathers in the wrong areas for it to be of use. As an architect I wanted to fit in rainwater storage without giving up valuable real estate”. The product has taken off so fast in California that Dominguez has moved her family and the business to Marin County. Hog is on display at the Autodesk Design Gallery in San Francisco as one of the winners of the Spark design awards.
I can’t judge whether the system can be used as it stands in a European context, but the potential market in London must be 35 million units on its own. It never rains but it shines, at least for this designer.