The company performs mercerizing followed by rinsing in running water and allowing recycle of the soda after concentration. The actual mercerizing operation is identical except for the fact that the mercerizer used is more automated the cotton is immersed in a soda bath containing wetting agent. But the rinsing, instead of taking place in three baths of water (hot then cold) that are discharged after use, takes place in a stream of running water the rinse water is progressively filled with soda until it is concentrated enough to profitably employ an evaporator to further concentrate it. The concentrated soda is then recycled for mercerizing, along with the wetting agent it contains.