questions on wood frame for gravel hot tub base
this group has been so helpful! another question -- i've decided to with a gravel base for my hot tub, so will dig down 8 inches, lay down landscape fabric, fill it with crushed stone (tamping down every two inch level), place the hot tub on it, then cover the remaining visible gravel with pea gravel or something more pretty. this will be framed with 4x4 pressure treated ground contact wood.
my questions:
can i put a nicer gravel on top of ALL of the crushed stone (and then sit the hot tub say on two inches of pea gravel, which will have 6 inches of crushed stone below that?), or does the hot tub itself need to sit on the compacted crushed stone?
where/when do i place the wood frame? is it the first thing that is done, where the wood gets put directly on the landscape fabric, and then the gravel gets put in? or do i put the gravel directly into the hole and then the frame sits on top of the foundation of gravel, and then you put more stone inside the frame to get it all flush before you put the hot tub on?
do i need rebar to stake the wood into the ground, or is it just sitting on the ground good enough?
is landscape fabric necessary? i have used it in our garden before to suppress weeds and find it kind of useless after a year or two. wondering if i can skip this step/cost and put the gravel directly on the dirt.
thank you!