National Swimming Pool Foundation - NSPF is a non-profit organization whose mission is encouraging healthy living through aquatic education and research. The foundation's Certified Pool-Spa Operator® program is the world's leading education program for pool and spa operators and health officials.

Taylor Technologies - Useful links and guides for water testing from a national leader in water testing. Taylor Technologies is committed to develop, manufacture, market and support innovative, quality test kits and reagents to be used whenever water needs to be tested.