I don’t trust the integrity of aluminum scuba cylinders… at least, not enough to: overfill any aluminum cylinder (in fact I often under-fill aluminum stages and decompression bottles keeping below the manufacturer’s suggestions for working pressure); keep them in service more than a year or two after their first hydrostatic test cycle (which is every … Continue reading → Read More Accident Management and Analysis, Business of diving, Cave Diving, CCR diving, dive-related, Rebreather Diving, Risk Management, Scuba Diving, tech diving, Technical Diving Doppler’s Tech Diving Blog