I looked at the post talking about a SALE on these Benjamin tanks at Midway USA......These are the kinds of tanks I have been seeing for sale on some of the Paintball board Classifieds. I think they are the same capacity and I know they are 4500psi cause they list it in the description.
Now, what I am wanting to know is how useful a tank of this size and pressure would be with a basic Benjamin Marauder or other similarly performing PCP rifle.
In the listing for this tank, the description says you can take it with you and fill it with a SCUBA tank. Is that true? I didn't think SCUBA tanks were 4500psi.
Please excuse me on these questions as I have never, ever had any experience with this kind of stuff.
Lets say I fill my Marauder at first with this tank. Then I shoot it until the velocity drops off. When I go to top it back off, how many times could I do this with that size tank after I filled it up initially? Would it give me 3 top offs, 5, 10, what do you think it would be?
I'm just trying to gauge whether I should get a tank like this when I see a great deal on a USED one to get into the PCP game.
Re: How Many Fills from a 4500psi 90 cubic inch Tank?
December 2 2017, 7:46 AM
I think that they meant to say that you could refill it from a SCBA tank (4500psi), not a SCUBA tank(3000psi). If you use a SCUBA tank, you won't any any full refills after the pressure drops below the 3000, or so, fill level of the gun. If you're willing to go with lower fill levels, it can work. I have a Maximus (2000 psi fill level), and calculated 80 some refills from a 3K psi SCUBA tank. I also have a SCUBA pony tank that's easy to carry around, that I can get about 7 refills from. If I were using a 3000 psi fill gun, I wouldn't be getting any full fills.
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