Abstract: An apparatus is provided for wet processing, preferably jet dyeing, textile material in endless rope form in an enclosed compact vessel by circulating the rope of material through a rope transport tube under the influence of a Venturi-induced jet of processing liquid and then collecting the material in the bottom of the vessel in an accumulator section at least partially submerged in the treatment liquid for recirculation through the transport tube by the jet of processing liquid. The apparatus is characterized by an accumulator section having a length at least one-half of the inside peripheral cross-sectional dimension of the vessel about a horizontal axis and a rope transport tube having a length of at least two-thirds of the inside peripheral cross-section dimension of the vessel about the horizontal axis and preferably positioned in the lower portion of the vessel to extend at least around the outside of the accumulator section and between the accumulator section and an inside wall of the vessel.