A hydrotherapy tub including a water and air piping system which is easily cleanable in a thorough manner. A manifold is mounted on the outer surface of each side wall of the tub with each manifold having a water conduit and an air conduit which are fluidly connected to sources of pressurized water and air respectively. The water conduit and air conduit in each manifold is fluidly connected to horizontally spaced-apart discharge ports formed in the associate side wall of the tub.
