Slurry pump, particularly for wet concrete, in which a discharge pipe extends upwardly from the base of a supply hopper and is rotatable through a restricted arc about the vertical axis. The discharge pipe is provided, at the bottom of the hopper, with a horizontal elbow registering alternatively with two pump cylinders extending horizontally from the hopper. During induction a pump cylinder ingests slurry from the hopper and during discharge, discharges slurry to the discharge pipe through the elbow, the discharge pipe being oscillated to connect with the appropriate cylinder.