Marek Mathea graduated of the Silesian University of Technology, Faculty of Motor Transport. For 15 years he has been working in the field of GRP composite pipes for water and sewage applications, as the Sales Manager of the Zagłębie region in the Silesian Voivodeship in the AMIBLU company, which was established after the merger of two market leaders – Amiantit and Hobas. As a representative of the company, he deals with sales and technical support for investors, design offices and contractors in the construction of rainwater and combined sewage systems, especially in urban agglomerations, taking into account the specificity of the region. During his speeches at various conferences, he presents the possibilities of using GRP products, adapting them to the current needs of customers and the market requirements. As an expert in his field, he helps both investors and designers in choosing the best solution in the field of water and sewage networks, especially retention.