Question 22 0 / 5 pts The setup shown in the figure is used to remove the suspended solids from the water by filtering (sending water through sand and silt). The coefficient of permeability of sand is three times greater than that of silt. What is the pore- water pressure at C (sand-silt interface) when the steady-state flow is established? 4m Soil in the pipe with internal diameter 0.25m Sand Silt 6'rri 9m 6m 300 1m -Datum