On Sat, 2 Feb 2008 17:30:13 -0800 (PST), firstname.lastname@example.org wrote:
Dig them out...
You will have to scrape off all the loam and topsoil anyway, often to
12 or more inches indepth, and lay down a bed of sand and/or gravel.
That will leave a lot of roots exposed and make the grinding really
In reality if the stumps were not near the edge, they'd probably not
rot for many years, so that is not a problem, but the logistics of
creating a good slab will make life difficult at best.
And, since you will have a backhoe and loader there to do the site
prep, digging them out makes all the sense in the world. The only down
side is that you then have to dispose of the stumps some way that is
socially acceptable in your neck of the woods. It is not acceptable to
bury them in most locations anymore (not that it is an environmental
issue, it is not, but that so many contractors were lazy and didn't
burry them deep enough and that resulted in nasty holes and other
problems). As well, most landfills won't take stumps and often it is
not allowed to burn them in an open fire.
But even so, dig them out, you will have a better slab, and it will be
less work in the end.
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