Combined rain and greywater recycling technology to help achieve an ’excellent’ BREEAM rating.

1. Ecozi Case Study
College Lane Campus, Lowestoft - Rain and Grey Water Harvesting
Client: Suffolk County Council
Project: Lowestoft College 6th Form, combined rain and grey water recycling
Building Type: Higher Education—6th Form
Roof: 100% membrane
Catchment Area: 3,160 m² + showers and wash hand basins
Apps: 60 WCs for student and staff use
Sustainability: BREEAM - Excellent
Built: 2011
Ecozi Ltd, Unit 2 Churchlands Business Park
Ufton Road, Harbury
CV33 9QX
01926 614 002
info@ecozi.com
www.harvestingrainwater.co.uk

2. About Ecozi – Rainwater Harvesting Systems:
Ecozi is a specialist rainwater harvesting and grey water recycling system provider.
Ecozi design, supply, install and maintain water recycling systems throughout the UK for commercial and residential
customers.
Ecozi work to all industry standards and are members of the UK Rainwater Harvesting Association. With our
experience from installation, commissioning and maintenance the service levels offered by Ecozi are amongst the
highest in the industry.
Market leading German manufacturers are key supply partners to Ecozi, providing advanced reliable systems with low
risks to end customers.
Ecozi Ltd, Unit 2 Churchlands Business Park
Ufton Road, Harbury
CV33 9QX
01926 614 002
info@ecozi.com
www.harvestingrainwater.co.uk

3. Water Recycling Requirements:
Combined rain and greywater recycling technology was specified by Atkins to help
achieve an ’excellent’ BREEAM rating. The new 6th Form was built to replace multiple locations in Lowestoft. To increase
the recycled water efficiency water from showers, wash hand basins and the roof is used to flush 60 WCs.
Built by Morgan Sindall and opened September 2011 the new building is estimated to
save 5,000L of potable water per day using the rain and grey water recycling. The
system efficiency is estimated at 45%.
Ecozi Ltd, Unit 2 Churchlands Business Park
Ufton Road, Harbury
CV33 9QX
01926 614 002
info@ecozi.com
www.harvestingrainwater.co.uk

4. Storage/Filtration/WC Water Distribution:
Storage
Ecozi use German greywater filtration technology to remove particles down to 5
microns from the water collected from showers and wash hand basins. Underground,
precast concrete storage tanks collect via gravity drains the greywater for treatment.
Additionally, rainwater from the 3,160m² roof is collected in a 16,000L precast
concrete service water storage tank.
Filtration
The greywater membrane filters remove particles down to 5 microns. The shower and
wash hand basin greywater can then be used for flushing WCs. The greywater filters
are located inside the inline series of 3 buried tanks that make-up the civils works,
completed by the ground works sub-contractor. The rainwater is simply filtered with a
stainless steel 0.4mm² pre-tank mesh filter and bypass before filling the 16,000L
service water tank.
WC Water Distribution
From the underground treatment and storage tanks the service water for reuse is
lifted to the main plant room and then boosted via a Rain Manager direct to the WCs.
When no recycled water is available the Rain Manager switches to mainswater and
back again when either rain or greywater is available. The Rain Manager is a German
built integrated cat 5 break tank and booster set specifically designed for rain and
greywater distribution.
Scope of Works
Ecozi were employed on a supply, install, commission and maintain basis, excluding
builders works for the drainage and storage tank installation.
Ecozi Ltd, Unit 2 Churchlands Business Park
Ufton Road, Harbury
CV33 9QX
01926 614 002
info@ecozi.com
www.harvestingrainwater.co.uk

5. Contact Details:
Ecozi Ltd
Unit 2 Churchlands Business Park
Ufton Road
Harbury
CV33 9QX
Tel:01926 614 002
Email: info@ecozi.com
Visit our website at: www.ecozi.com
Subscribe to our blog: www.harvestingrainwater.co.uk
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