Nick was the serviceman who worked on my pool/spa and he is my HERO. My fiberglass pool/spa turned completely brown over night and the stain adhered to the fiberglass. I thought it was permanently ruined. Nothing I did helped at all. When I called the business, Nick came right away to look at it and explained that the metal minerals in the water had leached onto the fiberglass. He came every day for 5 days to put in the appropriate chemicals to continue to break up the buildup of minerals and clear the water and to continually scrub at the stain. After 5 days of his efforts, my pool is usable once again and looks nearly brand new. He was so patient and took time to explain everything to me. I was very distraught and he calmed my fears and he fixed my pool. Hurrah for NICK. He is my HERO.