The tutorial is intended for students of specialties 5В072000-Chemical technology of inorganic substances, 5В072100-Chemical technology of organic substances, 5В072400 -Technological machines and equipment and master's specialties 6М072000-Chemical technology of inorganic substances, 6М072100-Chemical technology of organic substances, 6М072400 -Technological machines and equipment. The tutorial addresses the problems of designing and calculating vertical and horizontal cylindrical, as well as rectangular tanks operating at atmospheric and overpressure. This is due to the fact that this class of equipment is not subject to the "Rules of equipment and safe operation of tanks operating at excess pressure", and calculation and design is carried out by a simplified procedure. The basic rules of operation, labor protection and fire safety measures used in reservoir design are also set out.