So just to be clear, you hammered 2’ft pieces of rebar about a foot into the floor of the hole, leaving a foot sticking up out of the ground? And the same thing into the sides? How many pieces did you use total floor and sides?I used 2 foot lengths of regular rebar. Surprisingly easy to cut.
Pounded them in...not fun in a deep hole so used a board to press the ones on the sides in about half way so that the ends are extending into the hole. Ones on the bottom was easy.
Put a few inches of gravel in the bottom for drainage. Put in the cement. Hope this helps you sir
Sorry for all of the questions!