production and distribution of own pool chemicals of the krystalpool brand, wholesale and retail sale of tools, household items and plumbing and heating materials,
advisory and consulting activities, preparation of expert studies and assessments in the field of water management, operation of water supply and sewerage systems, water treatment and distribution, waste management, wholesale and retail trade, organization of courses, training including lecturing, solar and photovoltaic energy, projects and realizations, Green savings program, comprehensive services, radon measurement, determination of the radon index of the land.