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Rainwater harvesting systems rainwater collection
systems
Burdens Ltd
Rainwater harvesting systems rainwater collection systems
Burdens Ltd are the UK's leading supplier of civil engineering and
building materials to the infrastructure, environmental and
industrial markets. Burdens product range spans more than 80,000
lines, from gas and water pipelines to environmental-management such
as rainwater harvesting systems.
From aiding with the design and the supply of construction materials
to the maintenance and energy efficiency of the buildings. The core
Burdens business is a supplier of Civils and Infrastructure
materials from a national network covering the UK and Ireland of
almost 50 specialist distribution depots.
Burdens provide service and support from a national network of
approaching 50 specialist distribution depots covering the UK and
Ireland.
Rainwater Harvesting Systems
Rainwater harvesting quite simply collects the rain which fall onto
roofs, then stores it in a tank until required. When required, the
water is then pumped to the point of use, thus displacing what would
otherwise be a demand for mains-water. It is recommended that
overspill from a full harvesting tank be directed into either an
attenuation or soakaway system, thus securing that a volume of water
is kept out of standard drainage system, thereby helping to reduce
flooding risks.
Rainwater harvesting is not a new concept; however, over the last
century its use has diminished with the availability of a clean,
inexpensive and reliable water source through the mains supply.
More recently, water demand has started to exceed supply, and
localised flooding has become an issue. Industry experts are now
recognising the important role that rainwater harvesting (also known
as rainwater recycling, and greywater recycling) has to play in
alleviating both these problems.
Reasons for rainwater harvesting
• Rainwater harvesting (including rainwater recycling and some
versions of grey-water recycling) displaces a large proportion of
the water that would otherwise be provided by the mains supply -
thus reducing overall water supply costs.
• It can provide an off-mains supply for remote areas.
• It enhance a property and gains Eco-homes rating points.
• It can form part of an attenuation and rainwater management
scheme, by reducing storm-water runoff and controlling the flow-rate
off site.
• Increasingly planning departments are looking more favourable
towards the concept of rainwater harvesting.
Rainwater harvesting systems overview
Rainwater is captured from the roof, and is brought to a central
point, via normal guttering and down-pipes, to enter a storage tank
(frequently underground), where it is filtered on entry. A
submersible pump delivers the water to a service (toilet flush or
outside tap) on demand.
The size of the storage tank is determined by considering the amount
of water available for storage (a function of roof size and local
average rainfall), and the amount of water likely to be used (a
function of buildings occupancy and function).
Considerations for fitting a rainwater collection system to an
existing property:
• The external drainage from the roof needs to be modified to bring
the water to a central point.
• Access for the tank and excavation is required.
• Internal plumbing is usually required to separate the drinking
(incl. bathing) water from the non-drinking water (WC, washing
machine & outside tap.
• Burdens Environmental recommend the use of the following
components/systems for domestic rainwater harvesting.
Burdens Environmental host a wide range of sustainable and
environmentally friendly products in the following categories:
• Environmental Building Systems (such as Timber, Steel Frame,
Thermoplan Blocks)
• Environmental Services (such as heating systems, Biomass, Ground
Source Heat)
• Sustainable Urban Drainage Systems (Attenuation, Soakaways, Flow
Control)
• Green Roofs
• Consumables (Bacterial Cleaning Products, Energy Saving Lamps)
• Power Generation (such as Wind, Hydro)
• Commercial Waste Water Treatment (such as effluent monitoring
systems)
• Transport solutions (through a nationwide distribution network and
Trams)
Burdens Environmental
UK Sales Office
Earl Russell Way
Bristol BS5 0WT
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