We currently have a concrete inground pool rectangle shape 16'x35'. The deep end is a pyramid shape 'pit' that is 8' deep at deepest point. We took the diving board out due to insurance issues. We are wanting to fill this pit end in and make it 5' deep and level. What are the steps that we need to do? If anyone has done this, do you have pictures or video on how to do that you can share. Any help or suggestions would be great.