Figuring it out!

Jump to latest Follow Reply
M

Mandrada01

Member
Jun 29, 2025
39
124
I bought a 9L Air Marksmen bottle from another member on the forum and have been on a journey to figure out how to fill it. It all finally came together tonight!

I have access to a Scuba tank fill system at work, but I couldn’t figure out what fitting I needed to make it work. After digging around on the forum I discovered that I needed a “scuba to fin filler” adapter. I ordered it on Amazon and put it to the test today. Everything worked great, I was able to fill my 9L bottle to 300 bar in about 10 minutes (including figuring out how to use it 😂.

According to the online calculators, I should be able to fill my Karma EQ’s 520cc tank about 17 times from full to empty. Should keep me shooting for a while until I can fork out the dough for a compressor at home.

IMG_7661.jpeg


IMG_8063.jpeg


IMG_8065.jpeg


IMG_8062.jpeg
 
  • Like
Reactions: beerthief, AlanMcD, Cdoo333 and 1 other person
Mandrada01 said:
I bought a 9L Air Marksmen bottle from another member on the forum and have been on a journey to figure out how to fill it. It all finally came together tonight!

I have access to a Scuba tank fill system at work, but I couldn’t figure out what fitting I needed to make it work. After digging around on the forum I discovered that I needed a “scuba to fin filler” adapter. I ordered it on Amazon and put it to the test today. Everything worked great, I was able to fill my 9L bottle to 300 bar in about 10 minutes (including figuring out how to use it 😂.

According to the online calculators, I should be able to fill my Karma EQ’s 520cc tank about 17 times from full to empty. Should keep me shooting for a while until I can fork out the dough for a compressor at home.

View attachment 589356

View attachment 589357

View attachment 589358

View attachment 589359
Click to expand...
Nice! I have an EQ as well. If you do end up getting a compressor for home, I would recommend a tuxing twin cylinder. I have been filling tanks over a year with mine (portable model). Its easy to use and easy to work on, and affordable. It requires a 5 gallon bucket for water reservoir. I have a fan to blow across the motor as well. You need a good air/water separator filter, and synthetic compressor oil. Fill with oil to the center of the sight glass before 1st start, then change it a few times a year depending on usage.



 
Upvote 0
Mandrada01 said:
I bought a 9L Air Marksmen bottle from another member on the forum and have been on a journey to figure out how to fill it. It all finally came together tonight!

I have access to a Scuba tank fill system at work, but I couldn’t figure out what fitting I needed to make it work. After digging around on the forum I discovered that I needed a “scuba to fin filler” adapter. I ordered it on Amazon and put it to the test today. Everything worked great, I was able to fill my 9L bottle to 300 bar in about 10 minutes (including figuring out how to use it 😂.

According to the online calculators, I should be able to fill my Karma EQ’s 520cc tank about 17 times from full to empty. Should keep me shooting for a while until I can fork out the dough for a compressor at home.

View attachment 589356

View attachment 589357

View attachment 589358

View attachment 589359
Click to expand...
Let it cool and refill it. Seems like every time I get my carbon tank filled it drops about roughly 500 psi when it cools. I hate it because the scuba spot is so far away from my house and those 500 psi matters when I’m in the middle of nowhere lol
 
Upvote 0
You must log in or register to reply here.
Top Bottom
Back
Home
Forums
Resources
Menu