Welcome to our dive site
Hydrostatic Testing Services
How We Do It
It all starts with conducting a proper visual inspection of the tank. Visual inspections at the time of hydro testing must be performed by a D.O.T. licensed test agency, like Texas Dive Center Inc. of Lubbock, TX in accordance with the Compressed Gas Association (CGA) standards for Visual Inspection of High Pressure Aluminum Compressed Gas Cylinders. We are one of just two PSI Premier Inspection facilities in Texas and have the only PSI Inspectors in our region. The internal and external visual inspection of a cylinder is performed prior to hydro testing of the cylinder. In between hydro re-certifications, the annual visual inspection can be performed by any properly trained technician following the D.O.T. standards for such inspections, such as at our PSI Premier Facility. The inspection consists of checking for cracks and fissures, sidewall stamps, rust, and verifying the correct tolerances for outside diameter, wall thickness, length and straightness. If the tank meets the standards of C-6.1 we affix a sticker. We will not fill cylinders that don't pass our visual inspection of the cylinder. For scuba nitrox divers, we perform the same high standards of a PSI Premier facility for cleaning for Oxygen Service (CGA C-4.1). We will not re-fill a nitrox tank that has not been O2 cleaned and inspected by us due to the high risks to both us and our customers.
Certain aluminum cylinders (6351 alloy) will require a Eddy Test. All Walter Kiddie 1972 thru 1989 and Luxfer 1972 through May 1988. If you cylinder is not one of these don't fall for the scam of getting money from you for a Eddy Test as only these were made of the 6351-T6 alloy and require Eddy Testing. So what is an Eddy Test you ask. This is a special electronic inspection of the cylinder neck threads that a visual inspection would not necessarily see.
Normal Hydro Testing Fees:
Cylinder Hydro test (incl inspection and air fill) $65
Nitrox Hydro (Tank and tank valve O2 Cleaned, Inspected and gas fill) $145
Eddy Current 6351 cylinders $30
Scuba Annual Visual Inspections $30
Cylinder tumbling to tanks needing cleaning to complete the hydro $40. (Nitrox cleaning see above).
Tank valve service is $45 plus service kits and parts.
Annual Visual Inspection $30. Nitrox tanks needing annual inspection require O2 cleaning of tank and valve in addition to any other service requirements. As the annual inspection of all cylinders require the removal of the valve and inserting a light and probe into it they must be cleaned to prevent any contamination (especially carbon) being introduced prior to refilling.
Extra labor at $80 per hour.