How often should a hydro test for a tank be conducted?

For a hydrostatic test of a scuba tank, the recommended interval is every 5 years. This testing is crucial for ensuring the structural integrity of the tank, which can weaken over time due to various factors such as corrosion, wear, and internal pressure changes.

The hydrostatic test involves filling the tank with water and then pressurizing it to a level above its operating pressure. This process allows inspectors to assess the tank for leaks, deformations, or weaknesses that may not be visible during routine external inspections. By adhering to the 5-year interval, divers can ensure their tanks remain safe to use, thus minimizing the risk of failure while diving.

While options specifying 2, 3, and 10 years may reflect certain standards or practices in different contexts, the recognized standard for scuba tanks specifically leans towards the 5-year timeframe to ensure optimal safety and reliability for divers.