We have a slight slope in our back yard.. The very back is level, then it slants a little down toward the house. One of the PB that we have spoke with said he would dig the hole where the pool was going and cut a little off the high end of the yard. Then use that to raise the yard closest to the house . Is that a good idea when we will be pouring concrete up to our back patio? He said he would pack it down and it shouldn't settle but I have no experience with concrete.