A pool and spa plumbing adapter to relocate existing directional water flow plumbing fittings to new positions to accommodate new surfacing overlaid on the existing pool or spa surface. The adapter provides for a threaded engagement with existing plumbing and has a shoulder portion providing a visual cue for proper rotational translation of the adapter into the existing plumbing fitting to accommodate the new surface layer. A sealing ring can be provided extending above the shoulder portion to prevent fluid passage between the new surface and the adapter and to prevent rotation of the adapter.