If I'm using a scuba tank to fill my PCP. Does it matter if scuba tank doesn't have a current hydro test? Besides o rings being good I feel it would be ok to keep using it to fill PCP tank.
N/A Scuba tanks
- Thread starter kloof513
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Lots of talk on this subject.
Scuba tanks are not ideal. If you are getting any scuba or scba filled commercially will require the tank to have current test!
https://www.airgunnation.com/threads/tank-pros-cons.1309187/
BTW welcome to AGN.
Scuba tanks are not ideal. If you are getting any scuba or scba filled commercially will require the tank to have current test!
https://www.airgunnation.com/threads/tank-pros-cons.1309187/
BTW welcome to AGN.
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It depends on the country and how you fill the tank but they won't fill one in a dive shop if it doesn't have a test and is old.
They need to be tested every 5 years here.
They need to be tested every 5 years here.
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Yes and often just tested a few times CUZ there also is a EOL year for bottles,
Private though not a problem, then it is just your own safety.
Like my old 200 BAR bottle, i just had it filled 5-6 times at the dive shop but before first test, it then sat for the better part of a decade doing nothing, but i am now filling it again, though i mainly use it as a source for pressurized air in my apartment.
I am not nervous about old bottle, i have inspected it on the inside with borescope, and it looked as i would assume a brand new bottle would look.
Also i am old, though getting blown up by bottle, even if it had mead in it, will not assure me a path to Valhalla.
Private though not a problem, then it is just your own safety.
Like my old 200 BAR bottle, i just had it filled 5-6 times at the dive shop but before first test, it then sat for the better part of a decade doing nothing, but i am now filling it again, though i mainly use it as a source for pressurized air in my apartment.
I am not nervous about old bottle, i have inspected it on the inside with borescope, and it looked as i would assume a brand new bottle would look.
Also i am old, though getting blown up by bottle, even if it had mead in it, will not assure me a path to Valhalla.
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I found scuba tanks to be heavy, cumbersome and only fill to 3300 psi. I have an 80cf and a 100cf. I used them when I first started out in pcp game but only had a couple 2k fill guns. I found a paintball field within 8 miles of the house but he only have to preset psi levels he could fill... 3k or 4500psi. He charged me $8 to fill each and the had to have current tests.
When I moved into the 3k fill guns I had to upgrade to a compressor. I was able to scare a few scba tanks that would fill to 4500psi but they were expired and I had to fill them myself.
Now I fill guns directly because I only shoot at home. On occasion I will fill a tank to 3k and tether it.
When I moved into the 3k fill guns I had to upgrade to a compressor. I was able to scare a few scba tanks that would fill to 4500psi but they were expired and I had to fill them myself.
Now I fill guns directly because I only shoot at home. On occasion I will fill a tank to 3k and tether it.
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If you have a compressor to fill tank yourself & don't require a shop to fill it then hydro cert doesn't apply. HOWEVER, safety 1st! It would be wise to, at least, do a visual inspection of the inside of the tank. Never fill past its capacity (SCUBA tanks are usually 3,000 - 3200psi). You might want to get an SCBA tank down the road if gun(s) you own have a greater air capacity than the SCUBA tank can provide. What gun are you shooting?
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I have a couple of Steel Drager breathing air tanks (emergency breathing air supply) that were sold by a dealer who scuttles large ships on India. They are 300 bar working and 4500 bar testing pressure. I have an Altaros compressor too as well as a larger breathing air bottle (5" tall) I fill from the compressor. Steel tanks are much better than aluminum and do not require as much testing for safety.
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If you fill yourself I don't sweat it if you don't subject people to it. I have a scuba I use for a portable air supply for air tools that's out of date . Scott Scba out of date and eol, buddy bottles for paintball same story. Most of the certification is for dot (public road safety) and the safety of fill shops. Old fiberglass wound composite cylinders I won't extend the service life of. Those spook me.
Safety is your choice and consequence if you fill yourself. I bore scope the bottles yearly , inspect the fibers and resin and thread spec but I know I'm an outlier. Soon enough I'm going to make a hydro vessel to measure water displacement to measure cylinder expansion. I think they're tested at 5/3 capacity but the specs are on your cylinder. If not listed on the bottle they can be researched and the pressure and displacement are listed. Why does the rest of the world get 30 year scba and we don't?
Know the science behind what you're doing and then you can calculate the risk you want to take. There's a TON of energy in these cylinders.
Safety is your choice and consequence if you fill yourself. I bore scope the bottles yearly , inspect the fibers and resin and thread spec but I know I'm an outlier. Soon enough I'm going to make a hydro vessel to measure water displacement to measure cylinder expansion. I think they're tested at 5/3 capacity but the specs are on your cylinder. If not listed on the bottle they can be researched and the pressure and displacement are listed. Why does the rest of the world get 30 year scba and we don't?
Know the science behind what you're doing and then you can calculate the risk you want to take. There's a TON of energy in these cylinders.
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Last time I had my scuba tank recertified it was only about $30 including a fill. That was 2 years ago. I still use mine for my Maximus. Why not feel safe for $30.
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Air Venturi Avenger Bullpup II PCP Air Rifle, plan on doing my own fills at house.
Operating Pressure4351 PSI / 300 BAR
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Mr. George at SeaDivers in Ozark, Al. used to fill my 100 and 80cf scuba tanks for $4. He would do the visual for $8 and the hydro for $24, both included the fill and since it was a couple hours round trip for me he would do them while I waited providing I called and let him know I was coming. Since I wasn't a certified diver he had to put a sticker on my tanks stating they were not for diving use in order to legally fill them for me.
Mr. George passed and SeaDivers is now gone. He was 88 years old when I was going there a few years ago. He still gave diving classes and dove. I really miss the hours I spent listening to the stories of his adventures. He also had a showcase full of some very interesting things he had found when he was diving.
Mr. George passed and SeaDivers is now gone. He was 88 years old when I was going there a few years ago. He still gave diving classes and dove. I really miss the hours I spent listening to the stories of his adventures. He also had a showcase full of some very interesting things he had found when he was diving.
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Hydrotesting should be around $40ish. VIP (visual inspection), about another $40. If you have a 3K tank AND 3K gun you'll only get ONE fill to max pressure on your gun.
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Sorry,
I have 2 12 liter scuba bottles that I still use to fill my PP700SA pistol. I get 40 shots fill gun fill and I shoot almost every day and a month worth of gun fills from one 12 liter bottle filled to 240 bar.
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240 bar is 3480psi. Are you using SCUBA or SCBA tanks (4500psi)? Big difference between the two. HP Scuba is usually 3200psi.
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I've said this to others. Once upon a time cascade filling with scuba and boost pumps was all we had for hpa. Max fill is neat and all but i dont own a single gun that shoots it's best at max fill either. If scuba is free, take it because any useable stores air is better than none.
So for me 2175 psi is the minimum pressure for any of my handful of PCPs. It's pretty useful if that's ALL you've got. One of my most useful cylinders is 3400 max fill but it's 1150 ci and essentially a k cyldiner for capacity. Enough to shoot 2 slug tuned fx guns all day 50-70 fpe tethered to it. No max fills.... Just a giant gun tank essentially.
Improvise, adapt and overcome. A scuba with a tether and a regulator at the cylinder is pretty useful for a bench day.
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Sorry, don't understand your reply to ME. I was replying to OP. All MY personal air needs are filled. Being I mainly hunt I need no info on tethering.
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I use them at the higher pressures. The safety discs do not blow out at my use pressure. I also have an ACECARE 12 liter CF bottle that I use for my 300 bar guns..
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