 The water runs underground for about 350 yards in a north-east direction, it then flows in two steel siphons under the Colne Brook.It continues in a concrete lined open conduit, before going under the Wraysbury river in steel siphons, then east across Staines Moor and another siphon under the River Colne to Staines pumping station.From here water is lifted into the Staines and King George VI reservoirs by pumps.