Built upon 21 acres of oceanfront, Aulani, a Disney Resort & Spa, welcomes Guests in true local fashion, calling on your natural passion and Aloha spirit to help us cultivate an experience that is upbeat, colorful and rooted in tradition. Ability to understand the basic principles of water chemistry as they pertain to Life Support systems (DO, pH, Temperature, Nitrogen cycle, turbidity, ORP/HRR, oxidizers, algaecides, rules governing chemical application, biological filtration, nutrients, etc.).