StormyKnight wrote: I have come into possession of a 3500psi 88CF Steel SCUBA tank I want to use to fill my tanks from. I am woefully ignorant on filling HPA and have no idea what equipment I'll need to purchase to get my fillstation up and running. The tank has a DIN valve if that helps. Can anyone that has any experience in this area help me out? I'd very much appreciate it!

If your HPA tank is a 4500 psi, you'll need very little in the way of equipment.  No more than the connector that makes the connection between the tank and the scuba mouth piece/regulator line. Into that connector you screw the high pressure hose with quick connect to fit the HPA tank nipple, Then to fill your HPA tank, you crack the scuba tank valve until you hear the air flow stop and you are done. Some where in that line you'll need a "T" fitting connected to a small valve (on/off type ball valve) to vent the line after you close the scuba valve...you have to vent the line to disconnect the quick connect from the HPA tank's fill nipple. The gauge on the HPA tank will tell you when the scuba tank is getting too low.

If you have an HPA tank whose maximum pressure is less than the 3500 psi of the scuba, you will need to add a regulator between the scuba tank and the HPA tank to prevent filling the HPA above 3000 psi.

Now all that said, you can buy HPA filling stations designed to fit scuba tanks from on-line paintball vendors. I have also seen them on Ebay. The filling station "kit" may cost more than scrounging the parts, but you know what you have when you finish. And it is simple, open the box and install!

StormyKnight wrote: Bruce, thanks for the help, but I need more specific info on what I need and pretty much the best place to find it/them. It is a 3500psi (80CF not 88CF)tank, but I don't necessarily need to fill it to 3500psi do I? The bottles I use for my markers are 3000psi. If I don't fill the main tank to full capacity, I won't need a regulator, right? Is there a fillstation that connects directly to the DIN on the tank I have, or do I need a connector between the tank and the fillstation? Like I said, I'm woefully (completely and totally) ignorant on this subject. The only reason I've gone this route is because the local paintball shop that does have HPA fills doesn't always have his fillstation at the store. And when he does, he doesn't overfill enough on the tanks so when they cool down they are underfilled. There is a local shop that fills scuba tanks that can do my fills to my satisfaction, but I don't feel like spending $5 a pop to fill my bottles. I think they only charge $15 for scuba tanks.

The link for that part that Ken posted seems expensive, but it is not out of line.

If you have a 3500 psi scuba tank and your HPA tank is only 3000 psi I would recommend a regulator so you cannot accidentally over pressure the HPA bottle. Yes, you can request filling the scuba to only 3000, but you will need a gauge to attach to the scuba tank to verify its pressure before you fill from it.

I fill at home from a large industrial cylinder when I am testing my marker after any changes. But, while at the field I opt for "all day air" for $10. It is just too easy to get field air than to mess with my own set up when playing.

The fill station adapter is all you need.  It automatically regulates the pressure, and it should cost between $35 and $45.   NOTE: I did not look at the link. 

EDIT: http://www.actionvillage.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/DisplayProductInformation-Start;sid=Sr9dk5nue8BdsNofglidO5M69RAkmkCkAvc=?ProductID=EhesFAY7jiwAAAD42KvkrFs5 - http://www.actionvillage.com/is-bin/INTERSHOP.enfinity/eCS/S tore/en/-/USD/DisplayProductInformation-Start;sid=Sr9dk5nue8 BdsNofglidO5M69RAkmkCkAvc=?ProductID=EhesFAY7jiwAAAD42KvkrFs 5   That is what you want.

This place has some interesting choices!

http://www.breathingair.com/summary.aspx?ID=Q6UJ9A000086&Crumb=LQ6UJ9A00007E - http://www.breathingair.com/summary.aspx?ID=Q6UJ9A000086& ;Crumb=LQ6UJ9A00007E

http://www.scubacompressor.com/shop/product_info.php/products_id/109 - http://www.scubacompressor.com/shop/product_info.php/product s_id/109

Try that.

StormyKnight wrote: Yeah, this place only takes orders via fax.

You guys don't have WinFax Pro on your computers (Symantec product)? It allows you to send a fax from any program, it is selected from the printer choices and you "Print To Fax."

Many congressmen do not use Email, so there is no better way than fax to contact them to complain about that "Paintball banning law" he is contemplating.

But, this is the first-ever Web Store I have run across that takes only fax orders.