Rainharvesting Systems Ltd. in partnership with specialist installers Natural Power UK devised and supplied the rainwater harvesting scheme for this social housing development.

The inclusion of the rainwater harvesting enabled the client, Cottsway Housing Association, to achieve Level 4 of the Code for Sustainable Homes.

The system is designed around a single 18,000-litre tank supplying all 13 properties on the site. The harvested water is pumped to a small individual header tank in each dwelling. The header tanks are designed to always take water from the rainwater store as long as it is available, but will then automatically revert to running from mains water if needed.

Centralised Controls

The controls for the system are centralised and securely housed within an external, insulated and lockable enclosure and run from the landlords’ power supply.

This provides an ideal solution for a social housing scheme such as this. Each property has its own independent back-up from the mains water supply, the header tanks require no power, and the controls are tamper-proof and are only accessed by the landlord or the maintenance contractor.