Randy,
Dixie Art and others sell something called Ready Caps that are a red piece of plastic that slips over the siphon-feed tube on the end of the Fast Blast as well as other bottle assemblies.
They look like this and come in packs of 20 for $2.
You just put your Future in a bottle, screw the Fast Blast adaptor on the bottle and then slip one of these over the end to keep the air out.
They work great. Of course if you don't want to buy these you culd just put a piece of tape over the end to seal it off from the air.
![Wink [;)]](/FSM/CS/emoticons/icon_smile_wink.gif)
Mike
“Wisdom is the right use of knowledge. To know is not
to be wise. Many men know a great deal, and are all the greater fools
for it. There is no fool so great a fool as a knowing fool. But to know
how to use knowledge is to have wisdom. " Charles Spurgeon