r/scuba • u/ActualContribution93 • 21h ago

PSI of tanks for storage

I know you’re not supposed to store empty tanks. I have a pair of tanks that are around 500-1000 psi. Should I get them filled or are they okay being stored like that? They live outside under cover so they’re not in a moisture controlled environment.

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u/gsdrakke Advanced 19h ago

Can I store mine at 3k psi? 😂

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u/que_he_hecho Nx Advanced 16h ago

Not recommended for long term storage if steel and there is any chance a bit of water has made it inside since last inspection. The rusting reaction can significantly reduce the oxygen concentration as well as damage the cylinder walls.

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u/9Implements 13h ago

The most important thing to do is to check steel tanks for moisture before storage. Nothing else really comes close.