Rainwater HOG: award-winning, re-usable, long lasting modular rainwater storage
Rainwater HOGs make it easy to fit useful volumes of rainwater storage in the tightest spaces. The HOG solution is novel: slim, easily handled modules, designed for 20 years of useful life, fit into small spaces and screw together to provide rainwater storage in increments of 50 gallons.
Rainwater HOGs decentralize rainwater storage: their slim profile means water can be stored at each downspout and used locally. A single large cistern requires reticulated pipework linking all the downspouts to the tank and then back to the irrigated areas, often involving expensive installation and maintenance and a lot of garden replanting. The HOG system avoids such installation and maintenance costs with a smart, modular, slim design.
The best part is that the storage capacity can be structured to suit an existing budget and planned rainwater reuse, and expanded any time. Our largest installation to date is 114 HOGs for a total of 5,700 gallons using rainwater to flush toilets and irrigate gardens. Whether you install them horizontally, vertically or even on their long side as water-filled bench seating, Rainwater HOG modules are adaptable to almost any situation.
The modular screw together fittings combined with the robust ¼ inch (6mm) wall thickness of the HOG tank mean you can use the modules over and over, redeploying them to suit your changing requirements.
But how much does the Rainwater HOG store? As much as you want it to!

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150 gallons/ 540 litres for courtyard irrigation

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350 gallons/1260 litres for car wash and perimeter irrigation

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550 gallons/1980 litres for garden irrigation

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5700 gallons/20,520 litres for toilet flush and landscape irrigation
Where can a Rainwater HOG be installed?
The Rainwater HOG can also be used in your housing structure, under your housing structure, or fixed to the sides of your house or along your fence. The Rainwater HOG can also be used under your deck or patio, and along your garden bed.
The Rainwater HOG can be position either horizontally, such as below decks…

…or vertical, such as along the side of a house.
For more ideas on how our customers are using their very own Rainwater HOG systems, keep an eye on the Case Studies. We’ll update this section with new installations the world over!
I want one now!
Check out our list of suppliers to find a local supplier who can meet your Rainwater HOG needs.
The Details:
Materials
The Rainwater HOG modular tank is rotomoulded in virgin polyethylene which complies with AS2070. HOG is moulded of food grade plastic which complies with FDA and HPB regulatory standards for food contact however Rainwater should NOT BE USED FOR DRINKING WATER. This is because the water from your roof is contaminated with animal and vegetable matter which needs to be filtered from the stored water before it is fit for consumption. The tank material itself is recyclable and carries a 1 year guarantee.
Size
Each Rainwater HOG tank has a capacity of 180 litres, and the following dimensions: 500mm x 220mm x 1800mm.When empty the Rainwater HOG weighs approximately 18kg.
Colours
The Rainwater HOG is currently available in standard tank colours Bronze Olive green, and can be produced in a range of colours including Terracotta and Sandstone for orders of 20 or more units.
Mix ‘n’ Match
The Rainwater HOG is designed to work with conventional connection components which are individually guaranteed by the manufacturers. You can work with our suggested parts - or simply buy your own. See our suggested installations in Products for ideas to make Rainwater HOG work for you.
