A method and apparatus for adding rigidity and weight to the piping used in geothermal wells for ground-source heat pumps enhances insertion of the piping into the wells. The method combines information from a plurality of low-resolution images with a Field Of View shifted by a distance less than a pixel width to create a synthesized image having substantially improved image quality. In a further aspect the invention relates to a method for reducing the effective dosage of ASA in a chemoprofylactive treatment of colorectal cancer in a human by co-administration with a non toxic dosage of a vitamin D3 including analogues and metabolites thereof and Ca in the form of a combination dosage. Such schemes may be operated manually by a moderator or automatically via the system. In the storage position, the sliding surface of the support is prevented from moving away from the guiding surface of the storage unit along the elevation direction at the distal end by engagement of the maintaining element of the support with the maintaining element of the storage unit. The nozzle has an outlet end with a plurality of outlets about the central axis and having an asymmetry about the central axis.