Swimming pools in the U.S. are rarely fully tiled as is common here. Usually a very durable and very white plaster is used to finish the rest of the pool below the tile used at the water line.
We are reaching the point with our pool approaching 20 years old where it will need a full rehab. The tile in it has been a continued maintenance issue. Also it is very hard to avoid discoloration of the grout.
The Tapatio neighbors pool appears to have been plastered as described although it is so poorly maintained it is impossible to figure out what it was plastered with and whether it w