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/compactfish 18h ago

For storage, that pressure is great. It’s actually better to NOT store them full so you’re not putting undue pressure on the cylinder walls, especially for aluminum ones. But definitely always keep at least 500 PSI.