Strange Horizons: The giant spinning tops off Tampines Road

What does look like two giant spinning tops from the bottom of a grassy slope along Tampines Road are actually two concrete inverted cone shaped storage tanks built to each hold 8448 cubic metres of NEWater – water recycled from waste treated to become drinking quality water. The elevated tanks which measure 43 metres in diameter at the top, make up the Tampines NEWater Service Reservoir maintained by the Public Utilities Board (PUB) provide storage for NEWater produced nearby for use by nearby electronic chip manufacturing factories which require very clean water.