I have heard in this video that a concrete pond can raise a house's value considerably, while a liner pond has no affect. The video shows that concrete ponds are made with rebar, then an expensive concrete blasting process is used to spray in the concrete among the rebar. It can be very costly. I wonder if a cheap approach is, after putting a plaster liner down, I could pour 1/2" of Quikrete over it, forming a thin layer of concrete. Would that have the same affect?