Typical dairy farm in Yorkshire with a roof area of: 1,858m²

Typical usage: to supply drinking water to the dairy herd

Average annual rainfall : 955mm per annum
Combined water charge per m³:£1.55
Amount of water available to Envireau: 1,774,390 litres per annum

Value of useable rainwater: £2,750.30 per annum

Payback on capital purchase: 2.1years

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