Look you deush bag (sp?) you can't use a funnel b/c it would spill the air all over and as we all know air is messy and a biohazard when not cleaned up properly. What you need is a long rubber hose... hang the scuba tank upside down and attach the hoses to both tanks. Remember you have to shake your paintball tank if you want to fill it with air...so start shaking...then turn on your scuba tank. Also remember to use plenty of duct tape to secure the rubber hose. We wouldn't want it falling off before it has a chance to blow up
Hehehe...or you could get one of those wimpy fill stations!
Hahaha..yeah but you'll have no prob filling from a 3k tank...you will only get 3k fills though...as you already know...but it wont hurt anything!