Do i inevitability any re-bar or other support for lay a concrete wad for a 7x7ft 6 being hot tub?
Answers: My brother and I did this two years ago for his "tubby" within the California Sierra Nevada foothills
We went down to clay (3"), put down an inch of pea-gravel, put up a 2x4 pour frame, suspended line mesh at half-depth, poured the concrete, screeded and finished the surface
That has last just fine for two icy and snowy winters beside a FULL tubby. We plan to do the deck this winter, since we have have other projects sucking away money (barn and fencing, irrigation, and a swamp-cooler).
Good Luck !!
certainly can't hurt.
Consider the reality that water weigh 8.5 pounds per gallon.
What possible harm can it do to add on support, even go 6 inches for the slab. The cost and labor will be minimal.
Steven Wolf
No, but you will have need of at least a line mesh. You can probably get it where on earth you're buying the cement. The ground underneath will settle, the mesh keeps the cement from coming apart.
There be a similar question closer today, if I were doing this, i would verbs to clay, put landscaping yard goods in, hardcore and 6" concrete near iron mesh through it, better safe than sorry, 6 population, a hot tub and water at 2 pound a pint within weight is deeply of weight.
1/2" 23"OC. within a 6" slab.
this will take somewhat over a half patio. so mix it yourself. a truck would be cost prohibitive unless you can find someone pouring and they have some not here on the truck. i would put some mesh in it and progress a little deeper than 4 within. for the hole so you can get some crushed stone lower than the slab...quikrete makes a pretty angelic mix for diy projects...
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