My pool is designed into a sloping yard. In the deep end, the water is below grade, with a stone veneer faced wall above water, sheer descent waterfall coming out below coping, and ground level deck at the level of the coping, 24 inches above water level. The sides step down, and in the shallow end, the water level is 12 inches above surrounding decking, with stone veneer on the exposed exterior wall.
My question is this. Excavation is done, rebar is in, & they're about to shoot shotcrete. Instead of building steel & shotcrete up to grade level in the deep end, so that the above water portion of the structure is constructed at the same time, he is making the pool bond beam all one level. The wall at the deep end (basically now a retaining wall) is to built out of concrete blocks on top of the bond beam. Is this OK? Wouldn't it be easier & stronger to shoot it all out of shotcrete so that it is all structurally one piece?