Video inspection in wells helps provide information about the construction characteristics of the well: blind and filtering piping, the respective installation heights and any variations in the diameter of the work. The television probe – waterproof up to 35 bar, or rather resistant to the pressure of 350m of the freshwater column overlying it - is equipped with a special wide-angle lens that allows a detailed diagnosis of the 360° coating of any anomaly photographed or filmed during the investigation. Performing a video inspection makes it possible to ascertain the causes of the most common problems that can afflict wells during their productive life, such as the presence of sand and decreased flow rate. It is thus possible to plan maintenance properly in relation to the typical characteristics of the aquifer and problems arising from them. It is also possible to quickly complete the missing documentation of existing wells (depth, laying height of the filtering sections, type of pipes and efficiency) and to verify the actual conditions before carrying out expensive restoration operations. In the case of borehole or mine bore applications characterised by a sub-horizontal rather than a vertical development, it is necessary to use compact sized bore cameras, but above all the cameras must be equipped with a push-rod or reel system.