Rainwater HOG is a modular water storage tank which can be used horizontally or vertically for Rainwater Harvesting

Rainwater harvesting

Rainwater harvesting is the accumulating and storing of rainwater for reuse before it reaches the aquifer. It has been used to provide drinking water, water for livestock, water for irrigation, as well as other typical uses. Rainwater collected from the roofs of houses and local institutions can...

, emergency water storage and post-filter greywater

Greywater

Greywater is wastewater generated from domestic activities such as laundry, dishwashing, and bathing, which can be recycled on-site for uses such as landscape irrigation and constructed wetlands...

 storage. Rainwater HOG was named a USA Top-10 Green Building Product in 2008 http://www.buildinggreen.com/auth/article.cfm/ID/4092/ and won a Spark Design Award http://www.sparkawards.com/Galleries/08_Winners/Rainwater_Hog.htm and two additional sustainable product awards, a California Home & Design award http://www.chdmag.com/2009-chd-awards and a Green Log Award http://www.greenlogawards.com/winners-2009/ in 2009.

Rainwater HOG modules were used by David Gottfried, founder of the US Green Building Council, to achieve the USA's first LEED Platinum Home Remodel http://www.builderonline.com/leed/california-renovation-soars-beyond-leed-platinum.aspx. Gottfried used HOGs to store rainwater for flushing ultra-low-flush toilets, and additional HOGs to store filtered Greywater

Greywater

Greywater is wastewater generated from domestic activities such as laundry, dishwashing, and bathing, which can be recycled on-site for uses such as landscape irrigation and constructed wetlands...

 for use on the non-edible portion of the landscape.

The Rainwater HOG was designed by award-winning architectural innovator Sally Dominguez

Sally Dominguez

Sally Dominguez, , practised sustainable architecture for 9 years before designing the award-winning Nest high chair now held in the Permanent Collection of the Powerhouse Museum...

 for use in tight spaces and is sized to allow designers and engineers to use the stored water as effective Thermal Mass

Thermal mass

Thermal mass is a concept in building design which describes how the mass of the building provides "inertia" against temperature fluctuations, sometimes known as the thermal flywheel effect...

inside a structure.

Rainwater harvesting with the Rainwater Hog