A water circulation system for a swimming pool includes a venturi skimmer; a pump with a suction side and a discharge side; a suction drain; a pool return line; and at least one pool inlet fluidically connected to the pool return line. A pump inlet on the pump suction side has an inlet selector to fluidically connect the pump to the venturi skimmer, the suction drain, or a combination of the venturi skimmer and the suction drain. In addition, pump outlet on the pump discharge side has an outlet selector to fluidically connect the pump to the venturi skimmer, the pool return line, or a combination of the venturi skimmer and the pool return line. The pump is a multispeed pump or a variable speed pump. Also provided is a method of circulating water for a swimming pool generally comprising this circulation system.