We use string lines and siding boards to ensure a straight and plumb tile bed for the waterline tile.
Any abrupt elevation change on the floor needs contrasting tile. Here, we also prep a good tile bed for that.
We also use string lines and boards to ensure the waterline tile is level.
After the waterline tile is in place, we pour the coping.
A worms-eye view of newly poured coping, and Jacninto! Looking good on both counts!
After the coping has cured we cut in shallow releif cuts. Cuz as my uncle Glenn said, there are only two kinds of concrete, "Cracked, and gunna crack."