The Pool & Spa Operator(tm) Handbook, the official text for the Certified Pool/Spa Operator® (CPO®) certification program has been written to provide information and guidelines for the operation of spas and swimming pools used by the public.

Harness All the Latest Technology, Equipment, and Methods Needed to Keep Any Pool or Spa in Top Condition! The Ultimate Guide to Pool Maintenance provides complete guidance on all the maintenance and repair tasks required to keep pools and spas working at peak efficiency. This Third Edition now contains information on the latest technology and equipment, together with Quick Start Guides and difficulty ratings for each procedure. Filled with hundreds of detailed illustrations, this updated classic features: A step-by-step explanation of each pool maintenance procedure with easy-to-follow photos Quick Start Guides to help readers start and finish each task quickly Tricks of the Trade to make each procedure easier Tools of the Trade highlighting parts and tools for each job An Easy, Advanced, or Pro difficulty rating for every task The following new material: new information on chlorine alternatives; a new section on maintaining saltwater pools; expanded coverage of pools with built-in spas Inside This Updated Pool Maintenance “Bible” • The Pool and Spa • Basic Plumbing Systems • Advanced Plumbing Systems • Pumps and Motors _ Filters • Heaters • Additional Equipment • Water Chemistry • Cleaning and Servicing • Special Procedures • Water Features • Commercial Pools • Winterizing • Basic Electricity • The Toolbox • 50 Things Your Pool and Spa Can Do for Our Environment • Facts and Formulas • Typical Pool and Spa Health, Safety, and Building Codes

The third edition of the Guide to Ship Sanitation presents the public health significance of ships in terms of disease and highlights the importance of applying appropriate control measures. It is intended to be a basis for the development of national approaches to controlling the hazards, providing a framework for policy-making and local decision-making. It may also be used as a reference for regulators, ship operators and ship builders as well as for assessing the potential health impact of projects involving the design of ships.