Abstract: Apparatus in accordance with the invention is of the type in which textile fabric samples are dyed in a generally cylindrical vessel containing a liquid dyeing bath while being moved in a cyclical fashion by a sample holder having a generally vertical rod connected to an overhead stirrer. The improved apparatus includes means connected to the generally vertical rod for holding the textile fabric sample in a generally cylindrical configuration, a pump for pumping a concentrated chemical solution at a controlled rate, and means for supplying the concentrated chemical solution from the pump under the surface of the dyeing bath in at least two vertically spaced-apart locations.