Problems caused by poor drainage and a dirty slab surface for an indoor pool were corrected by placing a topping that sloped uniformly to a continuous channel drain. Because the channel drain couldn't be embedded in concrete for stability, it was attached with screws to a concrete footing beneath it. Existing #4 rebar that tied the original slab to the pool wall was left in place, with steel added to tie the drain footing to the wall. Off-the-shelf cove molding formed the nosing at the edge of the drain. At skimmer units, the drain was attached to plastic pipe that jogged around the unit. The pipes were later embedded in concrete.
The entire job took only 8 days and the cost was 40% less than that of removing and replacing the old concrete. And the owner got a product that is performing excellently.