Spain experienced very heavy rainfall during the winter 2009/2010. As a result, many manufacturers of concrete products had problems with aggregates that were too wet and with inaccurate moisture measurements. One of these companies was Tubs 1313 S.A. from Vallfogona de Ballaguer near Lerida, Spain. For more than 40 years the 18 Tubs 1313 employees have been manufacturing mainly concrete pipes and man holes and other concrete products for the underground construction industry. The aggregates come from a nearby quarry and contain varying amounts of moisture when they are delivered, depending on the weather conditions.