"Dr. Richard E. Hawkins" > wrote in message
...
> Will six gallons take a six gallong carboy to its neck?
>
No, it takes it part way up the shoulder. Too much headspace for storage.
Carboys vary slightly in exact capacity but it generally takes a little over
a bottle's worth above the 6 gallon (23 liter) mark to get the level within
an inch of the bung.

Brian