Hydrostatic Pressure Testing


Hydrostatic Presssure testing is required on all Scuba/HPA/CO2 tanks every 5 years

Hydrostatic Pressure Testing is a nondestructive (NDT) method of finding leaks or verifying performance and durability in pressure vessels such as pipe, tubing, and coils. Although this is considered a nondestructive test and failures are rare, they can occur when the test piece does not meet performance or durability specifications and may render the piece unusable.

This type of testing usually entails filling the test piece with liquid, bleeding out air, pressurizing the piece, then examining it for leaks or permanent changes in shape. A nearly incompressible (compressible only by weight, not air pressure) liquid, usually water or oil, is used because it will only expand by a very small amount should the test piece fail and not pose a danger to the technician. The test also can be performed with pressurized air, but is generally done with the vessel under water for safety reasons.

The pressure used in hydrostatic pressure testing is always considerably more than the operating pressure to give the customer a margin for safety. Typically the test is performed at 150 percent of the design or working pressure. For example, if a pipe was rated to a working pressure of 2000 PSI, it would be tested at 3000 PSI.

Cost: $35 per scuba tank and CO2 tanks


  • Discounts for multiple tanks tested at same time- ask for            details

  • Special high-volume rates for Fire Departments and other organizations 

Contact Us

Proudly teaching Texas how to scuba dive since 1998 including, Lufkin, Nacogdoches, Houston, Dallas, Austin, Herty, Hudson, Burke, Huntington, Granville, Pollok, Redtown, Wells, Diboll, Rocky Springs, Etoile, Apple Springs, South Texas, Southeast Texas, East Texas and more.   

© The Dive Shop 2018

Terms & Conditions

Dive Shop Release Forms