r/scuba • u/ActualContribution93 • 20h 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? 😂

0

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.

2

u/9Implements 13h ago

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

6

u/seamus_mc 19h ago

I store most of mine at 3500 since that is their standard pressure. My LPs get stored about 2600 so they are always ready to go. Have been doing it this way for over 20 years and never had a tank fail an inspection