The subject of the project is: - construction of a free-standing equalization tank with a capacity of up to 150m3 along with the construction of external sections of the water supply system and the construction of a rainwater drainage connection and a section of the water supply connection on plot No. 139/5 in Przecław and - sealing of the existing four treated water tanks in the Water Treatment Station in Tuszawa by making spray coatings. After cleaning, the walls of the tanks will be covered with a polyurea membrane and then a reprofiling layer of closed-cell foam. The last layer will be polyurea located by the spray method. The free-standing tank in Przecławek will be made in a low-carbon steel structure. It will be insulated with a layer of mineral wool. Its cladding will be made of steel sheet. The object will be placed on a pile foundation, topped with a reinforced concrete foundation slab. The compensatory tank will be designed for the retention of drinking water with a capacity of up to 150 m3 in order to ensure adequate water pressure in the municipal water supply network and to improve the quality of water supplied to residents. In the spring-summer period, in the municipality of Przecław, increased dismantling of treated water is observed. In order to ensure the required amount of water with the right pressure, the system of overhead pumps at the Water Treatment Station in Tuszawa works at maximum speed and this in turn translates into worse parameters of the treated water. This situation forces a faster flow of raw water through the hasty filters, which have too little filtration area. In order to extend the filtration process, it is necessary to increase the storage area of water already treated, e.g. at night and create a larger reserve that can be injected into the network during the day. The construction of an additional reservoir will provide an increase in the treated water storage by 150m3 and will extend the treatment process, which will translate into better parameters of the treated water. The construction of the reservoir itself is part of the modernization of the Water Treatment Station in Tuszawa by increasing the amount of stored treated water on the municipal water supply. Four reservoirs of treated water made in reinforced concrete technology with a capacity of 150m3 each are already located at the SUW in Tuszawa. These tanks were made in the early 90s of the last century. Their condition, despite numerous repairs, requires a thorough renovation consisting in their complete sealing. It is also necessary to replace the sections of pipes supplying the tanks. The wires are made of steel and are corroded to a large extent. The only effective technology that fully seals the bottom plate with the walls of the tank, which can be applied from the center of the tank without the need to dig tanks from the cover soil layer, is the technology of spray coatings (from polyurea). It is a two-component solvent-free high-quality coating used on concrete and reinforced concrete surfaces. Thanks to the renovation, the complete tightness of the reservoirs for treated water will be obtained. Tank walls together with bottom plates will achieve a homogeneous smooth surface, which will result in better circulation of treated water and will improve its quality. Additional replacement of the pipes supplying the tanks will also contribute to the improvement of water quality (no secondary contamination of the water fed to the network with pieces of rust). The main objective of the project is to: -providing residents of the municipality of Przecław with the required quantity and quality of water through the construction of a free-standing equalisation reservoir in Przecław and sealing of existing treated water reservoirs at the Water Treatment Station in Tuszawa. The specific objectives are: -Improving the standard of living of residents by eliminating the nuisances associated with periodic water shortages -Elimination of water losses resulting from leaks in reservoirs