With under slab drainage work approved we called in the gravel slinger prep crew to level and insulate the base. From here we can get the infloor heat system installed and another inspection. Once that passes we can pour the basement slabs and that contributes mightily to productivity and ease of movement for the plumber and mechanical installer who work next. Plus we have somewhere solid to sit, rather than hang the furnace.
Gravel is in and compacted. Note the top of slab is 6 inches higher than this level.
The styrofoam is down and seams taped. Top of slab is now 4 inches higher. Rebar is next.