metro-flow ltd  
tel: 01795 843866
fax: 01795 841701
METRO-TWIN HOME CONTACT RAINTRAP  
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Introducing the Envireau commercial rainwater harvesting system from 
Titan Gravity system  
Commercial applications
  • Schools & public buildings
  • Commercial offices
  • Warehouse & factories
  • Housing associations
  • Industrial developments
  • Farms & agriculture
  • Plant nurseries and garden centres
Benefits
Reduce costs, commercial premises generally have a greater demand for non-potable water for cleaning and toilet facilities. Large roof areas enable high volumes of rainwater to be collected so yielding substantial savings.
Environmental impacts, rainwater harvesting now features as a key part of corporate environmental management systems (EMS).
Rainwater harvesting equipment is the latest addition to the Water Technology List (www.eca-water.gov.uk), allowing businesses to claim 100% capital allowance on the system costs.
Planning applications, local authorities are increasingly expecting planning applications to demonstrate Sustainable Urban Drainage Strategy Initiatives (SUDS).
Design
The Envireau gravity system uses an elevated header tank to store filtered water after the main tank, in the event of a power failure on site or rain stocks running dry the system will automatically switch to mains water supply.
The header tank contains two independent valves operating the mains and rainwater supply and will always draw rainwater first.
Bespoke system installations capable of being upgraded and linked into future development expansion or potential change of use.

1 Water main
2 Storage tank
3 Main control panel
4 Level display unit
5
In line filter 120 microns
6
Internal rain filter
7 External rain filter
8 Pump
9
Header tank
10 Tundish valve
11 Mains top-up tank
12 External tap
|| The Barn, Church Farm, Church Lane, Stockbury, Kent, ME9 7RD || telephone: 01795 843866 || fax: 01795 841701 ||