Hello, I have a general question concerning my excavation. I will be installing a Vinyl Liner , steel walled, in ground pool. The site I have picked out in my yard will need to be graded up and raised approx 3'. Since most of this "new" dirt will just be dug back out, my question is on what is the preferred method:
Should I grade the entire area, and use a soil compacter at various stages of the build up to firmly compact the new soil and then excavate my pool as normal.
Should I just level the existing area, set my pool walls (since the top of the pool walls will be at the correct finished grade depth) and then back-fill everything back to the desired finish grade?
The reason I ask, is that I keep reading that "over digging" the over dig area is a bad thing. Is this just because it creates more work and material to backfill with non expanding material in the end. Or is it because the newly disturbed (or moved) dirt will not be able to withstand the weight and pressure of the walls and filled pool?