An Agricultural Estate, consisting of the Manor House and 20 cottages, with their accompanying farm buildings, was supplied from a large old water tower which was fed from a bore hole supply. Routine water sampling had identified the presence of e-coli in the system and this was traced to the water tower. RAH was approached to offer advice on the most economical method of refurbishing the system. The refurbishment had to balance the safe design of the system with tight budgetary constraints. However, it was soon evident that the water tower was beyond repair and an alternative design based on 2 water cisterns mounted on a concrete plinth was substituted. Because of this ground based supply, the water pumping system also required redesign. We further advised on the borehole pump and borehole pump building.