Rainwater HOG

Case Study 2: Nielson House                                                                                                        Sydney, NSW, Australia

Gallery

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1: HOG  fit snuggly down the side passage and the threaded connections allow the plumber to space the modules around the wall mounted utility boxes

1: HOG fit snuggly down the side passage and the threaded connections allow the plumber to space the modules around the wall mounted utility boxes

Overview

A total of 12 Rainwater HOGs were installed by Hayes De La Vega Architects to harvest roof water from all downspouts and remove garden irrigation from the mains water grid. The HOG modules were grouped at the three existing downspouts in order to capture water from the entire roof area without requiring extensive pipework and reticulation.

Six HOGs were linked at the front downspout to capture 285 gallons (1080 liters) to hose the footpath and front paving. Two HOGs at the side downspout were connected through the side wall to an additional five HOGs at the rear downspout for a total of 333 gallons (1260 liters) to hand-water the back garden and wash down the back paved parking area. The vertically mounted HOGs created enough water pressure to use the hose without a pump.

The threaded connections and narrow profile of the HOGs enabled them to fit into the narrow side passage, and to be spaced around wall mounted utilities on the side wall.

Details

Number HOGs
12
Gallons
618
Liters
2,340

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