How much N2O gets wasted through using a fill station? We have a station but are losing about 20lbs. out of the 65lbs. bottle. Is this what we should expect or are we losing more than normal?Thanks

 

How long are the lines you are using. 20lbs seems like alot. I usually lose about 5 lbs, depending on if I do bottles singley, or alot at a time. Are you weighing your bottles before you start filling? I know some people dont put a full 65 lbs in the bottles. If you dont weigh them, then you dont know what you actually have used and wasted.
If you fill more then 1 bottle at a time, you will cut on the waste. You will always lose what is in the lines when you disconnect bottles.

 

We aren't weighing the mother bottle cause our scale doesn't go that high. I am just trusting that our mother bottles we are exchanging are full. We have a 4 ft. line to the pump with filter then a 3 or 4 ft. to the 10lb. bottle. Dosen't seem to have any leaks at the fittings, but if we leave the system with nitrous up to the shut-off valve it will bleed down to nothing.

 

You must be using braided/teflon lines. They will seep a bottle empty over night, so dont leave your "mother" bottle open for longer then your bottle fill. You can get around this by using the thermal plastic lines. They dont seap. You can leave the main bottle open, and the line up to the pump will stay pressurized, although I would recomend that either, cause I dont know what kind of stress that would put on the pump. I basically have the same setup as you, but with thermal plastic lines, and average about 5 lbs per main bottle loss. And alot of this is found in how much the actual bottle weighed when I recieved it. It hasnt happened to me, but I know a couple of people who were short up to 10 lbs. So you might want to start checking them

 

Thanks custom N2O. Didn't realize the braided line leaked down that much.