Spa base in Maine

[Webini]

We didn't use anything other than the 3/4" crush as our dealer said that was quite sufficient.

NHskier

Thanks.  Looks like I'm staying with the 3/4" crushed rock.

Any issues with settling?

[TN__HOT_TUB]

I'd say you'll be fine.  My sister-in-law used just crushed stone (no pavers)