H2Andy
Contributor
i get from 3400 to 3700
that's on LP steel though
that's on LP steel though
HP Tanks HOW MUCH AIR DO YOU GET??
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cummings66
Contributor
My fills vary depending on how long I feel like waiting on it. Normally I get about 3200 psi on my 3500 psi tank, but then I don't like to hang around and so my tanks don't have time to cool and then be topped. Now if I leave them and pick them up later I'll get a full fill.
Does it matter to me? No, they're HP 120's and have enough air that a short fill doesn't cut into my dive time anyways.
Does it matter to me? No, they're HP 120's and have enough air that a short fill doesn't cut into my dive time anyways.
David P
Guest
If I really (REALLY) screw up I can fill to 4500. Untill my new LDS (and part time fun employer) opened I had to drive 45 miles to get a good fill of nitrox. I tried a different shop (only about 20 miles) it took about an hour and a half and barely over 3000.
bradshsi
Guest
It depends. Some places like Hoodsport dive shop (which is populated with real enthusiast divers) always give you decent full pressure fills.
Other local Portland shops are a mixed bag. Most give you about 3200-3300 cold. A few (including the one I bought the tank from), seem to struggle to get 3000 psi.
Perhaps I should try Kraken's label suggestion...
Other local Portland shops are a mixed bag. Most give you about 3200-3300 cold. A few (including the one I bought the tank from), seem to struggle to get 3000 psi.
Perhaps I should try Kraken's label suggestion...
It's just me to blame getting a short fill, bcs make my own fills at local vol.FD. Have to admit being quite lazy to cool and topfil my tanks
Most fills are in the range your survey didn't capture. 3250 is very common and by then I 'm often below 70F the reality is closer to a spot on fill.
I have never gotten a fill below 3000. I have had the pleasure of 3800 on numerous occasions.
The shop I now frequent will do a legitimate top off if I leave the cylinders over night and be within gauge error of perfect. If I'm in a rush they'll let it rest (I don't think the gas appreciably cools) a moment then give me a modest warm overfill that cools to 3200-3300.
All in all for the weight to gas ratio it's still they are still the best thing going even with the slight underfills.
BTW, AL-80 buddies generally show up with 2700-2800 PSI so I don't quite understand what all this short HP fill carping is all about.
Pete
I have never gotten a fill below 3000. I have had the pleasure of 3800 on numerous occasions.
The shop I now frequent will do a legitimate top off if I leave the cylinders over night and be within gauge error of perfect. If I'm in a rush they'll let it rest (I don't think the gas appreciably cools) a moment then give me a modest warm overfill that cools to 3200-3300.
All in all for the weight to gas ratio it's still they are still the best thing going even with the slight underfills.
BTW, AL-80 buddies generally show up with 2700-2800 PSI so I don't quite understand what all this short HP fill carping is all about.
Pete
spectrum:
Not where I spend my money. I leave my tanks overnight and they are 3500 psi or more (depending on who did the fill). If I need an 80 I'm grabbing one from stock and having it topped before I leave.
If you are in a rush and have to have the air now, sure its gonna be a little warm and will cool once you get outside, get underwater, etc. If you're routinely getting short fills from the same shop you can only blame yourself.
If I had an AL80 filled to 2700 psi... you're darn right I would gripe. These people are supposed to fill tanks as part of their job. They should know how to fill them FULL.
At the place I go... They fill my HP tank to 4100 psi HOT, then it cools to 3500-3600 psi which is totally fine. (that's the pull up... bring the tank in... fill and run) They fill my wife's AL80's to 31-3200 psi after cooling. If the compressor at the shop can't fill the tanks full enough or the filler doesn't know how to fill them all the way... either educate them, or find another shop.
At the place I go... They fill my HP tank to 4100 psi HOT, then it cools to 3500-3600 psi which is totally fine. (that's the pull up... bring the tank in... fill and run) They fill my wife's AL80's to 31-3200 psi after cooling. If the compressor at the shop can't fill the tanks full enough or the filler doesn't know how to fill them all the way... either educate them, or find another shop.
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