After doing business like this, Woelbing discontinued making sales calls in 1972 which had mostly been in Wisconsin, Illinois and parts of Indiana. Woelbing's son Don joined the business in 1973 and introduced assembly lines to Carma Labs. In 1975, due to the product's success, a new production facility was built in the southwest suburb of Franklin; production at the same facility continues to the present day. The company employs about 100 people. It remains under the ownership of the founding family.