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The StormBank® system provides a simple, easy to install package ideal for any new development. Storage volumes are carefully sized to ensure a cost-saving and effective system, for minimal maintenance.
Collecting rainwater where it falls and making it immediately available for reuse makes perfect sense. It also eases the rate of flow into the local stormwater management network.
As well as saving water and energy and reducing bills, rainwater harvesting makes ideal use of local resources whilst reducing the impact of new developments on the surrounding infrastructure.
With only simple storage and filtration rainwater can be used to replace expensively treated mains water for use in toilets, garden and outdoor use. In this way, rainwater harvesting can reduce mains water use by up to 50%. Mains water would still be used for cleaning, hygienic use, cooking and drinking.
A range of systems are available, depending on application.
The tank is manufactured in one piece from high quality LDPE, to form a watertight tank. It is supplied with an access cover, specially designed to stop ingress of water from above the tank. The cover is adjustable to meet finished levels, and is designed to keep loading away from the top of the tank. In this way the tank can be used underneath lightly trafficked driveways.
The filter incorporates a fine tubular mesh that removes fine particles from the flow. The filter is flushed when subjected to a significant inflow and the filtered material is ejected through the overflow to the surface water drain or soakaway. The filter cartridge can be easily removed for cleaning using the supplied handle.
An internal filter is pre-fitted to your StormBank® tank, suitable for up to 200 m2 of roof drainage. For larger roof areas (up to 450 m2) an external filter can be supplied that is also easily accessed from ground level.
The control panel combines a rainwater connection from the StormBank® tank to the supply pipework and the mains top-up supply to the tank. The operation of the pump is switched via a pump control, to supply rainwater on demand. A junction box is linked to a float switch in the tank and triggers a solenoid valve to supply mains water to the tank at times of low rainfall.
The submersible pump sits inside the tank, operating on demand from the control panel. The floated inlet filter takes only the cleanest water from just below the surface.
A float switch is installed in the tank to monitor the level of the rainwater. In periods of dry weather where the water level may fall below a set level the float switch triggers the control panel to supply mains water to the tank. In this way there is always water available in the system.
Officially opened by HRH the Princess Royal, the Forestry Commission’s newly-built environmental classrooms in Staffordshire are using rainwater recycling equipment from Hydro International for toilet flushing to save on mains water usage.
Tank Dimensions for Stormbank® Domestic System - CAD Format
General Tank Layout for Stormbank® Domestic System - CAD Format
Tank Dimensions for Stormbank® Domestic System - PDF Format
General Tank Layout for Stormbank® Domestic System - PDF Format
Stormbloc® is a cellular block type structure used predominantly for providing below ground storage/attenuation, surface water infiltration and soakaway systems.