Back Door Slab settled pretty far on one side
Uneven concrete can cause tripping hazards as well as problems with water settling after rain.
It is down a total of 9 inches - about 5 inches lower than its original height
PolyLevel is used to raise and also to make the concrete even from one side to the other.
PolyLevel raised the slab back to the correct level
The concrete is back to it's original position and is now able to pass code.