Scuba Cylinder Hydrostatic Test

The Scuba Cylinder Hydrostatic Test is a federally required safety test that verifies your cylinder’s ability to safely contain pressure. At ScubaRepair.com, we coordinate professional, DOT-compliant hydrostatic testing to ensure your tank meets all regulatory and safety standards for continued use.

Hydrostatic testing is required every 5 years for most aluminum and steel scuba cylinders. This test measures permanent expansion under pressure to confirm the cylinder’s structural integrity. Cylinders that pass testing are properly marked and returned ready for service.

What’s Included

• Coordination of DOT-required hydrostatic testing

• Cylinder depressurization (if needed)

• Pre-test visual assessment

• Post-test inspection and verification

• Official hydrostatic test stamping (month/year) upon passing

• Documentation for compliance and fill stations

• Airfill and Visual Inspection Sticker

Why Choose ScubaRepair.com

• Trusted professional service coordination

• Compliance with DOT and industry standards

• Experienced scuba service technicians overseeing the process

• Clear communication and documentation

• Servicing individual divers, dive shops, and commercial clients

Important Notes

• Cylinders must pass hydrostatic testing to remain in service

• Failed cylinders will be condemned and cannot be returned to service

• VIP inspection and valve service are not included unless selected separately

• Oxygen cleaning not included

Recommended For

• Aluminum and steel scuba cylinders

• Recreational, technical, and professional use

• Cylinders reaching or exceeding their hydro date

Turnaround Time

Typical turnaround is 2-7 business days, depending on testing facility scheduling and cylinder condition.

Disclaimer

Hydrostatic testing is required by federal regulation and does not replace the need for annual visual inspections (VIPs). Cylinders must have both a current hydro and valid VIP sticker to be filled.