An Australian man has survived hours straining to keep his nose above filthy water after his excavating machine tipped over hurling him into the pool. Daniel Miller, 45, had been riding the machine at his isolated property 300 Sydney. When the edge of an earthen dam gave way, the farmer was pinned down by a bar on the three-tonne excavator. Mr Miller said he adopted a yoga pose — arching his back for air — until a neighbour 500 metres away heard him shouting.