This book is your essential guide to success in the NSPF Certified Pool Operator (CPO) exam. As the guardian of public health and safety, a Certified Pool Operator plays a crucial role in ensuring the proper operation and maintenance of swimming pools and spas. From water chemistry and sanitation to equipment operation and regulatory compliance, the CPO certification signifies your commitment to upholding the highest standards in pool management. With this book, you'll discover a comprehensive selection of practice questions meticulously designed to mirror the content of the NSPF CPO exam. Each question is crafted to challenge your knowledge and understanding across all key areas of pool operation and maintenance, covering: Regulations Liability and risk management Filtration systems & recirculation Pool chemistry and calculations Water sanitizing and testing Maintenance and troubleshooting Renovations Management and personnel Spas, hot tubs and seasonal pools Energy conservation Whether you're studying independently, attending a CPO certification course, or refreshing your skills, this book serves as an indispensable tool to assess your readiness, identify strengths and weaknesses, and hone your problem-solving abilities in preparation for the exam.