Sounds better
That'll be only about 1/3rd as much concrete.
And a round hole would use less.
While I still think it's overkill for California, if you're happy, so be it.
I'm with you on the 48" deep. No question.
Might go with a 9" or 10" sorta round hole.
And optionally a 12-14" round pad on top (2" thick).
Or possibly something made up from a paving stone...
That'll be only about 1/3rd as much concrete.
And a round hole would use less.
While I still think it's overkill for California, if you're happy, so be it.
I'm with you on the 48" deep. No question.
Might go with a 9" or 10" sorta round hole.
And optionally a 12-14" round pad on top (2" thick).
Or possibly something made up from a paving stone...