PADI TecRec & Poseidon Se7en+ Rebreather Courses
Step beyond recreational limits. Ascuba Diving offers world-class technical training in North Texas: staged decompression diving, twinset & sidemount technical configurations, and state-of-the-art Poseidon Se7en+ Closed-Circuit Rebreather (CCR) certifications.
PADI TecRec Open-Circuit Curriculum
Progressively learn technical diving skills, gas planning, runtimes, and decompression procedures with twin tanks or technical sidemount rigs.
Discover Tec Diving
Curious about technical diving? Try twinset doubles, manifold valves, and tec harnesses in a confined water session. Practice buoyancy with technical rigs before committing to full certification.
- Prerequisite: PADI Open Water Diver (10 logged dives)
- Format: 1 pool / confined water session
PADI Tec 40 Diver
Your bridge from recreational to technical diving. Learn decompression computer software, gas planning, and carry a single decompression stage bottle with up to 50% Enriched Air Nitrox to 130ft (40m) with up to 10 minutes of non-accelerated deco.
- Prerequisite: PADI Advanced Open Water + Enriched Air + Deep Diver (30 logged dives)
- Max Depth: 130 ft / 40 m
PADI Tec 45 & Tec 50
Learn accelerated staged decompression using pure 100% oxygen to 145ft (Tec 45) and multi-stage decompression with accelerated stops to 165ft (Tec 50). Full technical competency for deep historic wrecks and wall diving.
- Prerequisite: Tec 40 + Rescue Diver (50 logged dives)
- Max Depth: 165 ft / 50 m
Poseidon Se7en+ Closed-Circuit Rebreather (CCR) Training
Experience the pinnacle of diving technology. The Poseidon Se7en+ is the world's most automated, safety-engineered rebreather. Dive silently with no bubbles, get up to 3+ hours of gas endurance, breathe warm humidified gas, and approach marine life closer than ever before.
Auto-POS Pre-Dive Check
Automated pre-dive computer diagnostic verifies electronics, solenoid injection, and loop integrity before every dive.
Solid-State Optical O2 Sensors
State-of-the-art optical luminescence oxygen sensors eliminate traditional galvanic sensor degradation and temperature sensitivity.
Silent Bubble-Free Stealth
Zero exhaust bubbles mean pelagics, sharks, and shy marine life don't swim away—ideal for underwater photography.
Poseidon CCR Courses Available at Ascuba Diving:
• PADI Rebreather Diver (Poseidon Se7en)
• PADI Advanced Rebreather Diver (Poseidon Se7en)
• PADI Tec 40 CCR Diver (Poseidon Se7en)