Residential Pool Renovation in Historic Hillsborough NC This renovation was on a historic Hillsborough home. The interior finish is Turtle Bay Pebble Sheen and new Verona Borba Classic waterline tile work wonderfully together with her natural setting and green environment. Coping and Deck is bluestone. The project also got a energy efficient variable speed pump, a ph Controller, robotic cleaner and replacement anode for her existing ionizer - a beautiful chlorine free pool!