Stormsaver commercial rainwater harvesting systems - NMBS

save water,
save money,
save the
environment
Stormsaver
commercial
rainwater
harvesting
systems

Stormsaver ®
products & services
As the market leader in rainwater harvesting
solutions we offer a broad range of systems.
Welcome to
Stormsaver
Stormsaver is the UK market leader for
commercial rainwater harvesting.
Our core values are quality, honesty and building
relationships with our suppliers and customers.
Our approach is to focus firmly on your
sustainability requirements and to develop an
effective solution that will satisfy your needs.
UK owned, we work with a wide range of
clients, such as HM Prison Service, the Ministry
of Defence, major supermarket chains, Local
Authorities, schools, colleges, universities and
private companies.
Our rainwater recovery systems are developed
in accordance with BS8515: 2009 for rainwater
harvesting and the Water Regulations Advisory
Service (WRAS) guidelines.
Accreditations and awards
Members of the UK Rainwater Harvesting Association
and winner of many awards for innovation, Stormsaver is
incredibly focused on the ongoing development of product
excellence and the highest levels of customer service.
By being exceptional at what we do, we make sure you can
deliver on your promises.
Our systems are approved by the Water Technology List for
the Enhanced Capital Allowance (ECA) scheme through HM
Revenue & Customs.
About rainwater harvesting
Water is a valuable resource and rainwater harvesting plays
an important role in sustainable development. Because of this,
Stormsaver’s rainwater harvesting systems are increasingly
included in the standard specification of new buildings.
Rainwater harvesting is a beautifully simple concept: collect the
rainwater that falls on your roof, store it on site, filter and re-use
it in place of mains water.
The result is equally as simple: you REDUCE your mains water
consumption, REDUCE your mains water bill and REDUCE your
environmental impact.
Rainwater is free, sustainable, soft and free of limescale and
the use of rainwater harvesting helps mitigate local flooding.
On the other hand mains water is increasingly expensive, in
short supply, unlikely to meet future demand at peak times,
subject to restrictions on usage – particularly during the
summer months and a contributor to carbon emissions.
There are many applications in which harvested rainwater can
be used. For example, WC and urinal flushing, irrigation and
landscape watering, vehicle washing, laundry, cooling or with
fire sprinkler systems.
Stormsaver rainwater harvesting systems are found in a
diverse range of buildings, from offices, shops, museums and
visitor centres through to universities, schools and colleges,
even industrial facilities, like warehouses and factories.
Hospitals, care homes, prisons and apartment blocks can
benefit from having a rainwater harvesting system installed.
Non-pressurised: Automated filtration
Our unique processor unit, with its automatic filter cleaning
system, connects to a header tank for back up and failsafe
protection.
Pressurised: Automated filtration
Our unique processor unit, with its automatic filter cleaning
system, connects directly to the point of use without the need
for a header tank, making it ideal for smaller projects.
Non-pressurised: Standard filtration
This system is designed for clients working to a tight budget
and sees the underground tank linked to the header tank
through two stages of filtration.
Pressurised: Standard filtration
This system is designed for clients working to a tight budget
where a header tank cannot be accommodated and
rainwater is supplied directly to points of use, making it ideal
for smaller projects.
Combi system: Automated filtration
A unique control system combining back up storage,
automated cleaning filters and energy efficient variable
speed booster pumps can provide a pressurised water
supply for commercial applications.
Standard Combi
As above but without automated filtration, making the
system more suited to clients working to a tight budget.
Above or below
The majority of Stormsaver’s systems feature an
underground storage tank but should a building require it,
we can supply a system with an above ground tank.
Monitoring units
We offer a selection of high quality monitoring units suitable
for commercial, retail or industrial sites to demonstrate your
organisation’s achievements in water conservation. These units
are suitable for any building entrance including schools, where
they can be used in conjunction with our Education Pack.
Education package and monitoring
Stormsaver’s unique, comprehensive package for schools,
includes a monitoring unit and an Activity Pack for teachers,
featuring an information booklet, activity plans, badges
and educational support material relating to the National
Curriculum.
Additional products
All Stormsaver systems are developed to suit site conditions.
Options are available to enhance the standard systems,
including above or below ground tanks, UV disinfection,
additional tank management equipment, duty and standby
pumps, booster sets, additional fine levels of filtration, BMS
connections and bespoke header tanks.
Services
Whatever you need, Stormsaver can help. From site surveys,
quotations, design advice, site-specific drawings and
manuals and pre-commissioning visits. All this is backed-up
by guidance from our specialist support team.
Warranty
All commercial systems come with a 2 year warranty.
Maintenance and service contracts
Available for all sites with six month, annual, multiple site or
bespoke contract options for single or multiple year options.
For domestic properties, Stormsaver has developed Monsoon ®
- a system specifically designed for residential installations.
www.alumascrainwater.co.uk/rainwater-harvesting/ | 3

The Stormsaver rainwater
harvesting system
How we size your system
All Stormsaver rainwater harvesting systems are
developed to meet your site-specific requirements.
We take into account a number of factors, including:
The result is equally
as simple:
• REDUCE
your mains water
consumption
• REDUCE
your mains water bill
• REDUCE
your environmental impact
National coverage
Stormsaver’s systems can be found in buildings across
the UK. From Lands End to John O’Groates, we can help
you lower your water bills, save money and minimise your
impact on the environment.
Our systems are found in everything from commercial
offices, shopping centres and supermarkets through to visitor
centres and horticultural sites. Capturing rainfall and using it
to flush toilets or supply sprinkler systems and laundry rooms
allows our clients to put the environment at the centre of their
planning applications and mitigate many of the problems
associated with conventional drainage solutions.
The education sector is undergoing a massive new build
and refurbishment process – including Building Schools for
the Future (BSF) – which encourages the use of rainwater
harvesting. Our ever-popular Education Pack, not only
reduces spending on utilities, but also enhances learning
opportunities through the National Curriculum. We also deal
directly with PFI projects for schools.
It’s obvious but if you’re operating in an industrial setting and
use a lot of water, rainwater harvesting can have a major
impact. Vehicle washing, transport depots, warehouses,
manufacturing sites and agricultural operations have all
benefited from installing a Stormsaver system.
Rainwater isn’t just for industrial settings, our systems are
perfect for healthcare installations, such as hospitals, health
centres and care homes.
• The roof area of your building
• Local rainfall (based on 40 years of MET Office figures)
• Water demand and occupancy levels
• Any existing specification or site-specific requirements
• Filter co-efficient
• BREEAM requirements
• Your budget
The individual requirements of the system will be based
on supply and demand rates being calculated as part
of the building design.
4 | www.alumascrainwater.co.uk/rainwater-harvesting/ www.alumascrainwater.co.uk/rainwater-harvesting/ | 5

Stormsaver offers a choice of systems:
What equipment is included?
Storage tank
• Underground single chamber tank. 1,000 – 150,000 litres,
incorporating an integrated Vortex Filter
• Above ground sectional tank. 1,000 – 200,000 litres
• Above ground single piece tank either vertical or horizontal.
1,000 – 150,000 litres
To create larger capacities tanks can be linked together with
the fittings supplied.
All tanks come with an integrated Vortex Filter, a 180 micron
floating suction filter, inlet calmer, pre-molded inlets and
outlets located and orientated to suit local site drainage, a
back pressure valve, rodent guard and lockable cover.
Non-pressurised system
Rainwater is channelled from the roof into the storage tank,
passing an integrated filter to remove large debris, leaves etc.
Water enters the tank via an inlet calmer preventing disturbance
to fine sediment on the base of the tank. Excess rainwater
flows out of an overflow which has a one-way valve and rodent
protection; also skimming surface particles. Inside the tank
are sensors and a submersible pump which on demand take
water from the cleanest part of the tank through a floating
suction filter suppling filtered rainwater to the break tank. This
tank gravity supplies water to point of use, it is possible to have
the break tank at any level in the building when combined
with a booster unit sized for the specific building requirements.
During periods of low rainfall a WRAS compliant mainswater
top-up provides a continuous failsafe supply. More than one
break tank can be used in a system - our team can offer design
assistance to ensure the most economic solution is applied.
6 | www.alumascrainwater.co.uk/rainwater-harvesting/
Pressurised system
This system may be required in buildings with low water
consumption, where roof space for a header tank is limited
or where a pressurised supply is required for applications.
Rainwater collection and flow within the pressurised system
follows the same process as the non pressurised system
- the main difference being that water enters the control
system and flows via a pressurisation unit as a direct supply
to points of use. In periods of low rainfall a WRAS compliant
mainswater backup activates, providing a continuous water
supply. This tops-up a percentage of the underground
storage tank.
This type of system is only recommended within certain
applications and it is best to discuss your individual
requirements with our sales team.
Combi system
This is a unique control system combining the benefits of both
a gravity-fed header tank system and the pressurised supply
of a boosted water system.
As with our other systems, rainwater follows the same journey
until it reaches the control unit. Instead of the normal control unit
a Combi unit is fitted, where water is stored awaiting distribution
by the energy efficient variable speed booster; providing water
at pressure to a range of applications without the need for large
header tanks. The system also features mainswater back-up and
WRAS compliant air-break to provide a continuous water supply
All of the Stormsaver rainwater recovery systems will make the
most economic use of the local rainfall with predicted water
consumption. It is recommended that you speak to our expert
staff to help you choose the correct type of system for your
application and that you choose low water consuming products
to complement the system, furthering a reduction in overall
consumption.
Header tank
Stormsaver supplies a range of header tanks suitable for the
non-pressurised system.
• The tank has been designed to be compliant with the
Water Supply (Water Fittings) Regulations 1999 to
protect the integrity of the mains water supply
• WRAS compliant non-corrosive tanks
• Pre-installed insulation 25mm as standard – 50mm/
75mm on request
• Single piece tank. Standard or bespoke dimensions
in 100 – 10,000 litres as single piece or 1,000 – 200,000
litres installed as sectional design
• Tanks are fitted with level sensors, inlet valves and
supplied with a mains water failsafe control valve to
provide continuity of supply if power fails
• Tanks can be fitted with multiple sections for drain
down/maintenance
• Multiple header tanks can be incorporated into the
building design to suit the non-pressurised system
Processor unit
• Self-contained unit incorporating automated filtration and
system control
• Automated self-cleaning filter unit to 50 microns
• Pre-wired electrics for ease of installation
• Pre-plumbed pipe work for easy connection
• Option to connect to a variety of Building Management
Systems to provide information about the system, such as
how much rainwater or mains water has been used and
details of pump operation and filter cleaning.
• Instructions inside the panel for ease of installation
and operation
• Option to connect to multiple tanks and
multiple header tanks
Pumps
• Stainless steel submersible pumps for 0.8 – 18 litres a second
at a maximum of variable head, with stainless steel lifting
rope, run dry protection and silent, anti-drumming design
• Duty and stand-by or duty assist systems available
• Other pumps are available for specialist site specifications
Full data sheets and technical drawings are
available on request.
Recovered rainwater is classified as a category five
risk as defined in the Water Supply (Water Fittings)
Regulations 1999. The Stormsaver system complies
with WRAS guidelines relating to system design and
protects the integrity of the mains water supply.
www.alumascrainwater.co.uk/rainwater-harvesting/ | 7

Enhance your system
Stormsaver’s standard systems will ensure you save
money by saving water day in, day out. We offer a range of
additional features, such as monitoring units and building
management system connections, to enhance our systems
and meet specific needs of clients in commercial and
education sectors as well as those needing remote access.
Monitoring units for commercial and
educational buildings
Stormsaver offers a unique selection of monitoring units,
perfect for receptions, communal areas or meeting rooms.
These informative displays show how much rainwater has
been saved today and the overall amount of rainwater and
mains water used since the system was commissioned.
Our educational unit is colourful and child-friendly and
shows how the rainwater system works. Our commercial
unit is offered in a sleek, contemporary design, suitable for
any entrance or reception area.
Building Management
System connections
Remote access and monitoring of Stormsaver systems is easily
achieved through our BMS connections. A common fault alarm
comes as standard with extra connections available for clean
filters, zero flow, low tank content and any pump error. We
also provide indicators for flow detection, mains water and
rain water usage as well other bespoke requirements.
UV disinfection
In cases where filtered rainwater may create an aerosol, we
always recommend additional disinfection. This is also advised
in buildings where occupants may be regarded as at risk due
to their susceptibility to infection, such as the young, elderly or
those with low immune systems.
Other sectors – such as the prison service, vehicle wash units
or the healthcare sector – should consider health implications
and include disinfection.
Our intelligent UV disinfection units can connect to your BMS
and can accommodate flow rates of up to 5.8 litres a second.
Larger flow rates can be achieved with bespoke units or by
installing the units in parallel.
As an alternative to UV disinfection, we can offer automatic
dosing systems – dependent on site-specific requirements.
Booster sets
Supplying rainwater from our processor unit at direct
pressure over a long distance or to a substantial height
may require a booster set. These systems can be sized on
application to meet site-specific requirements.
Duty and standby pumps
One submersible pump is supplied as standard with our
tank management equipment.
We offer the option to include a duty and standby
arrangement where the pumps operate in sequence to
extend their life and to give a back-up in the unlikely event
of a single pump failure.
Installation
All clients benefit from a dedicated technical account
manager, who provides tailored advice and guidance
throughout the installation process. You will receive a
comprehensive package of working drawings and an
installation manual. The system components will be
delivered to suit your schedule and everything will be
pre-assembled and tested by Stormsaver before it arrives
on site. All you have to do is provide interconnecting pipe
work and cables.
During installation, it is critical to test the functionality of
the system. Stormsaver will work closely with the ground
workers during the tank installation and continue to assist
the mechanical and electrical contractors as they put the
final connections together prior to commissioning.
Once installed, Stormsaver will offer a free
pre-commissioning visit to check that the installation
is correct. We will then fully commission the
installation. Once operational, you will be provided
with a commissioning report and a full operation and
maintenance manual in digital format.
All systems come with a two year warranty.
A summary installation guide and information on
maintenance contracts are available from
Stormsaver on request.
Stormsaver education pack
At Stormsaver, we appreciate the importance of educating
future generations about water conservation and
sustainable development. This is why we have developed a
comprehensive education pack, which we offer to schools that
feature a Stormsaver rainwater harvesting system.
Developed with support from Local Authorities and primary
school teachers, the education pack is aimed at Key Stage 2
pupils. However, many of the activities are also useful for Key
Stages 1 and 3 and even youth clubs.
There are two parts to Stormsaver’s education pack: the
monitoring unit and the educational activities book.
The educational monitoring unit allows everyone at the school
to see the building’s daily rainwater usage, the total rainwater
usage and the total mains water usage since commissioning.
This information provides a great visual display for children,
parents and governors about the school’s achievements in
water conservation.
Educational activities book
The core of our education pack is our exclusive 100 page book.
‘Molly Monsoon’ guides children and teachers through a range
of topics from water conservation and the value of rainwater,
through to how rainwater harvesting works and how to use the
education monitoring unit.
National Curriculum
The activities book is full of information sheets, quizzes, activities
and comprehensive teachers’ notes that reference everything
to the National Curriculum. It incorporates key skills, numeracy,
literacy, education for sustainable development and other core
subjects including mathematics, science and English.
There are even guidance notes on how long each activity
should last and homework suggestions
Flexibility
The activities have been developed so that teachers can
adapt them to their own teaching styles. The pack can be
incorporated into existing teaching methods or used to create
new lesson plans.
8 | www.alumascrainwater.co.uk/rainwater-harvesting/
www.alumascrainwater.co.uk/rainwater-harvesting/ | 9

Regulations, funding & accreditations
Our dedicated customer
service is second to none.
This is just one more
reason why our loyal
customer base comes
back to us time and again.
The Stormsaver promise
• Free site visit
• Design support services
• Systems fully commissioned
• Technical support
• 2 year warranty
10 | www.alumascrainwater.co.uk/rainwater-harvesting/
Stormsaver customer services
Together with our products, our dedicated customer service
is second to none. This is just one more reason why our loyal
customer base comes back to us time and again.
As standard, Stormsaver customers enjoy:
Office based services
• free quotations in 48 hours
• all quotations are supported with payback and efficiency
information
• up to date information on funding and grants
• access to funding through our ECA approved system*
• full online back-up and information on our website
• CAD demonstrations available
• presentations and demonstrations to your company
or design team
* Subject to individual applications to HM Revenue & Customs
Design support services
• accurate sizing of rainwater recycling systems
• calculations and sizing to meet BREEAM requirements
• fully descriptive technical drawings for all configurations
• flexibility of design for site-specific limitations
• attendance at design team meetings
• consultancy services
Technical services
• immediate response support and technical back-up
• site-specific drawings and installation manuals
Site based services
• free site visit with each order
• site surveys so we understand your specific needs
• commissioning to give you total peace of mind
After sales service and maintenance
For peace of mind, we can take the hassle out of
maintenance with our training and range of packages
based on 1-5 year contracts.
Regulations
Stormsaver’s systems fully comply with:
• BS8515: Rainwater Harvesting Systems 2009
• Water Regulations Advisory Service (WRAS)
guidelines
• Water Supply (Water Fittings) Regulations 1999
• Part G of the Building Regulations
• Relevant health and safety guidelines, including
the protection of mains water drinking supplies
against potential cross contamination.
• Construction (Design Management) Regulations
• The IEE Wiring Regulations for Electrical
Installations 17th Edition
• Regulations under the Electricity Act
• Control Of Substances Hazardous to Health
Regulations (COSHH)
• The Chartered Institution of Building Services
Engineers Guide, codes of practice and
commissioning codes. Water Regulations
Advisory Scheme Information and guidance
Note No 9-02-05 Marking and identification
of pipe-work
Guidance notes on BS8515: Rainwater
harvesting made easy available now
Stormsaver follows the best practice guidelines set out by the
Building Services Research Information Association (BSRIA)
and the Construction Industry Research Information
Association (CIRIA).
Enhanced Capital Allowance
The Stormsaver product range is accredited by the Department
of the Environment, Food and Rural Affairs (DEFRA) under
HM Revenue & Customs Enhanced Capital Allowance (ECA)
scheme and follows the best practice guidelines set out in the
scheme.
The ECA scheme allows the costs of the system to be written
off against an organisations taxable profits. ECAs can reduce
a tax bill by £300 for every £1000 spent on the qualifying
product, as well as provision of plant and machinery - which
can include the cost of transportation and installation of the
qualifying system.
Building regulations
Part G of the regulations sets out minimum water efficiency
requirements in new buildings to meet sustainability targets
through saving water. Suggestions for use of rainwater
harvesting systems are included within Part G.
Sustainable Drainage Schemes (SDS)
To help mitigate localised flooding, water authorities are
placing restrictions on any new water being directed to
storm drains. Therefore, the Stormsaver system has a
central part to play in Sustainable Drainage Schemes (SDS).
The installation of a Stormsaver system can, where used
appropriately, minimise surface water run-off to help reduce
the danger of localised flooding. More importantly,
a Stormsaver system can, where appropriately sized, help
the user to recycle the water that would otherwise have
been lost.
BREEAM
The installation of a Stormsaver system can help you
gain points for the Building Research Establishment
Environmental Assessment Method (BREEAM), win Eco
Awards, Green Building Awards and many other local
accreditation schemes.
www.alumascrainwater.co.uk/rainwater-harvesting/ | 11

Stormsaver
commercial
rainwater
harvesting
systems
Alumasc Exterior Building Products Limited
White House Works | Bold Road | Sutton
St Helens | Merseyside WA9 4JG
T +44 (0) 1744 648400
F +44 (0) 1744 648401
stormsaver@alumasc-exteriors.co.uk
www.alumascrainwater.co.uk/rainwater-harvesting/
© 2010 Copyright and information is the property of Stormsaver Ltd and subject to change without notice. All information contained in this publication is an indication of the products and services
available through Stormsaver Ltd and does not constitute an offer or contract. Every effort has been made to present all information accurately, however, no liability is accepted for any inclusions
or advice given or for omissions from the publication. Technical advice should be sought from Stormsaver Ltd’s technical team before any purchasing or technical decision is made.