What is the point of gravel in the bottom of a post hole?
Is it to keep the post from sitting in water?
Say the hole is 24" deep with 2" of gravel. When the water line is
22.2" below the surface, the gravel is almost covered with water and the
post is dry.
Buy when the water line is 21" below the surface, the gravel and 1" of
post are under water.
Why not just make the hole 22 inches, and skip the 2" of gravel?