Britain's best source of building product information

Developers of an office development in Cumbria have identified a solution to stormwater runoff using Hydro's Stormbloc modular storage system and Hydro-Brake Flow Control device. The original plan required a tank to be installed in concrete under the car park which entailed deep excavation into stiff clay. As Stormbloc is load bearing, it needed minimal structural work to install, and only required excavation to 2m for a 500m³ tank, which, say the contractors, proved to be easier and more cost effective solution.

Europe's largest supplier of aluminium building systems has launched a design guide to aluminium facades. Hydro Building Systems, which offers the Technal and Wicona brands, has issued a handbook which looks at the latest technological developments in lightweight facades.

This product appeared in Building Products more than 12 months ago. Please contact Hydro International directly for further details.

For a new housing development in Cumbria, a two-storey configuration of Hydro International's Hydro-Brake flow control devices was specified to meet stormwater discharge controls as required by the Environment Agency. Discharge limits for 2 to 100 year events had to be met. The profile had to mimic a former factory's stormwater outfall profile. Mounted at the discharge end of a 2.4m diameter, 42m long concrete pipe are the Hydro-Brake devices to balance the stormwater storage. Two other devices fitted are also connected to the outfall via a junction. The lower device provides flow attenuation for low return period storms and the upper device operates with the lower one in extreme storm conditions.

This product appeared in Building Products more than 12 months ago. Please contact Hydro International directly for further details.

Meeting demand for a rainwater harvesting system is the StormBank from Hydro International. It is designed to offer a potential saving of over 50% of treated mains water. The product collects rainfall from roofs, passes it through the system's stainless steel filter and delivers it to the building free from particulate matter. It provides water that is suitable for toilet flushing, vehicle washing, laundry and the garden. Water flows through an overflow connection to a Stormbloc soakaway or a public stormwater sewer. The storage tank is seamless for strength.

This product appeared in Building Products more than 12 months ago. Please contact Hydro International directly for further details.

As part of the programme to upgrade its waste water treatment works at Micklefield, near Leeds, Yorkshire Water has employed Hydro International's Grit King Separator to provide protection for the inlet works from sediment and silts carried in inflowing primary sewage. The Grit King has a concrete chamber in stainless steel with a peak flow rate of 110 l/s, and removes 95% of grits and slits down to 200 microns. It uses vortex technology to allow particles to settle out by gravity into the grit pot and overflow before being discharged to the treatment works. The Grit-Cleanse Classifier provides washed grits with less than 5% faecal organic material, suitable for disposal or use elsewhere. Grit and silt is fluidised by backwash in the Grit King before being pumped into the well of the classifier where it is then finally discharged into skips.

This product appeared in Building Products more than 12 months ago. Please contact Hydro International directly for further details.

Upgrading of two combined sewer overflows in the city of Durham, for Northumbrian Water, involved the use of Hydro International's Hydro-Brake flow control. This equipment reduces discharge in times of heavy rainfall into the River Wear, attenuates the flow from the Durham sewer network and reduces the volume of storage required. It also minimises the number of times the combined sewer overflows are called into action in the city.

This product appeared in Building Products more than 12 months ago. Please contact Hydro International directly for further details.

To reduce overflow in times of heavy rainfall into the local stream, Northumbrian water chose Hydro international's Hydro-brake flow control to attenuate the discharge into the local sewage treatment works. The flow control solution effectively regulates excess flows so that discharges to the water course are almost eliminated.

This product appeared in Building Products more than 12 months ago. Please contact Hydro International directly for further details.

Stormbloc infiltration modules from Hydro International are in use at Thickthorn Park and Ride, Norwich, to ensure that stormwater run off from the car park complies with Sustainable Drainage Systems (SUDS) principles. The car park is on a slope and paved with standard asphalt, which drains to gulleys and surface channel drains. The SUDS area beneath the car park extends to 4,000m² of soakaway, using some 2,000m³ of the Stormbloc. As the soakaway layer has to be flat to ensure even infiltration, the Stormbloc modules have to withstand loading of some 3.5m of soil at the deepest point. Stormbloc is a modular infiltration block system, with a designed in access tunnel for ease of maintenance. It is available in eco-green polypropylene blocks providing high volume water storage with a 96% void ratio.

This product appeared in Building Products more than 12 months ago. Please contact Hydro International directly for further details.