Chris Bacon wrote:

S Viemeister wrote:
The spigot and the hub seem to have rusted together - it's nearly
impossible to tell where the spigot ends. We puddled-in some WD-40 and
left it overnight.

You might have been better off adding a little hydrochloric acid (or
even acid from a defunct car battery).

The WD40 worked, after leaving a good 24 hours.
And much safer than the acid.

Sheila