3 gallon carboy mouth dimension

[skyfire322]

My friend is making me a 3-gallon clay pot for me to age some wine in, but needed some dimensions; particularly for the mouth so I can fit the standard 6.5 bung. I've been seeing conflicting measurements, from 1" up to 1.5". Could I just average it and tell him to get the mouth to 1.25"?

 

[Johnd]

My friend is making me a 3-gallon clay pot for me to age some wine in, but needed some dimensions; particularly for the mouth so I can fit the standard 6.5 bung. I've been seeing conflicting measurements, from 1" up to 1.5". Could I just average it and tell him to get the mouth to 1.25"?

The #6.5 bung measures 1" in diameter at the small end, and 1-1/2" diameter at the large end, so 1.25" would work just fine. Most important part is to make sure the opening is round and smooth so that the bung seats properly in the opening......