How will the first iteration of Intelligent Water Drops Algorithm work?

According to the algo "the initial soil on each path (edge) is denoted by the constant InitSoil such that the soil of the path between every two nodes i and j is set by soil(i, j) = InitSoil."
If the soil is same at every edge, won't the probability of a water drop to move from the ith node to any other node be same?