- 50,000-litre bulk storage
- 750-litre break tank
- Variable speed booster pump
- Location: Nr. Sherston, Wiltshire
- Client: Private farm
- Requirement: drinking water for cattle
- Average annual rainfall: 745 mm
- Available roof area: 2000 m2
- Estimated annual rainwater collection: 800,000 litres
- Capital cost: £13,200 (2014)
- Completion: Summer 2015

We frequently receive enquiries about rainwater harvesting for farms, and this is a very good example of a successful application.
This West Country dairy farm decided to expand their herd in 2015 which required construction of new livestock buildings. This was an ideal opportunity to install a rainwater system to provide a supply of drinking water for 300 cattle.
Water is collected from the new barns and an existing adjacent building via a large Vortex filter into a 50,000-litre underground tank. This removes leaves and all other debris larger than 0.38mm. The water is then pumped to an intermediate break tank which is equipped with an automatic back-up from the mains water supply. From here the water is then pumped to several drinking troughs via fine sediment filters and an Ultra-Violet disinfection unit.
- 50,000-litre bulk storage
- 750-litre break tank
- Variable speed booster pump
- Location: Sherston, Wiltshire
- Client: Private farm
- Requirement: Drinking water for cattle
- Average annual rainfall: 745 mm
- Available roof area: 2000 m2
- Estimated annual rainwater collection: 800,000 litres
- Capital cost: £13,200 (2014)
- Completion: Summer 2015