Under the definition of a hydrodynamic problem, a problem is solved on flat steady state seepage under a Zhukovskii rabbet through irrigated soil bedded by a very permeable pressure horizon, whose left semi infinite roof is simulated by an impenetrable inclusion. The movement in the case when the velocity of the flow at the rabbet's end is equal to infinity, which causes more than one sheeted area of complex velocity, is examined. The results are compared with the results obtained for the case when the velocity of the flow at the rabbet's end is a finite quantity.