Rainwater Harvesting

Up to 50% of mains supplied water to the domestic environment goes on uses for which non-potable (not drinking quality) water could be used – clothes washing, toilet flushing, car washing, garden watering etc. On average each person uses 150 litres per day, 30% of which will be for toilet flushing.*

Nowadays, issues of water shortage are widely accepted, particularly in areas subject to frequent hose pipe bans, and issues of flood protection are becoming much more important. Consideration of processes for Sustainable Urban Drainage Systems (SUDS) are now an integral part of the planning process for new developments (in England, Planning Policy Guidance Note 25).

Domestic and commercial rainwater harvesting systems are a reasonably straightforward method of addressing, at least in part, the three issues of conservation, energy use reduction and management. Whether for domestic or commercial applications, systems are relatively simple consisting of a collecting system (guttering, drain etc.) feeding, via a suitable filter, a holding tank. Most systems will have pump within the holding tank which will either periodically transfer water to a header tank for gravity systems or will pump to taps/appliances for direct systems.

ESEA Ltd will install rainwater harvesting systems in Peterborough and throughout the UK, so if you are interested in the possibilities or would simply like to know more we will be pleased to discuss the options with you and, as appropriate, conduct a survey without obligation.

* Ofwat Security of supply, leakage and the efficient use of water report 2003-2004