An urgent issue in many branches of the modern economy is the possibility of various uses of large-volume containers of various manufacturing geometries for the purpose of storage, transportation and use of various types of technical liquids, water, etc. The most common geometry for the manufacture of such containers is cylindrical, hemispherical, parabolic tanks. In most cases, the spatial arrangement of such containers during their direct use has a vertical orientation. But as the review and trends of modern uses of such cylindrical structures show, there is a trend towards their horizontal or combined location methods during practical operation. The volume of the filler in the conditions of constant use of such containers is also constantly changing, and therefore the main energy characteristics of the filler materials themselves change accordingly, to which we can attribute the actual volume of the liquid, the set of static moments, as a result, the coordinates of the center of gravity, moments of inertia relative to certain coordinate axes, planes, etc. The issue of changing certain geometric characteristics when changing the location of such cylindrical containers from horizontal to vertical or vice versa can be interesting and relevant. A significant number of sectors of the economy show interest in plastic horizontal containers for water storage, and this is understandable, because the ease of use and variety of products attract an increasing number of consumers. Plastic types of cylindrical containers have been gaining popularity in various industries for a long time due to their useful features. Innovative technologies and materials have made it possible to create plastic products of various shapes, sizes and purposes, and this has many obvious advantages. The use of plastic materials in the manufacture of various containers allows to significantly reduce the initial weight of such a product in comparison with its metal counterparts or glass products, which means that when establishing the main energy characteristics, the weight of the container itself can be neglected. In addition, the use of this type of container is convenient for its transportation, installation, etc.