We are located in a remote location and I am trying to find information on getting my technician certified for servicing regulators. He has written to several manufacturers, but has not had one email returned. He is currently certified on ScubaPro (we are a ScubaPro dealer), but he would like to get training on other brands of regulators. If he becomes certified to repair/service other brands, would he be able to get parts for these brands? Any help would be greatly appreciated.