Tanks must have a Hydro Inspection every 5 years and a Visual Inspection each year!
Avoid this! Scuba tank inspection is crucial to every diver. Divers Source is certified to do annual visual scuba tank inspections by the Professional Scuba Inspectors, Inc,(PSI, Inc.)and NAUI. When the cylinders are back from hydro testing, they are visually inspected for sustained load cracking, external damage or corrosion, internal pitting or corrosion and any irregularities. They are not only inspected with a fiber optics internal inspection light but also with the Visual Plus. The Visual Plus uses eddy currents to thoroughly inspect the threaded neck region of aluminum cylinders.