The first comprehensive field guide to the water maintenance trade is now available in an economical paperback edition. All aspects of pools, spas, and other recreational water containment units are covered in detail, from design and construction to lighting, winterizing, fiberglassing, tiling, and troubleshooting and repair. Major topics covered include basic and advanced plumbing systems, pumps, motors, horsepower, and hydraulics; filters and heaters; and water chemistry. In addition, the author covers all aspects of water service as a business as well as a trade. The book concludes with lists of product resources, relevant publications, and helpful ``business booster'' services. While a must for the professional, this book is also an invaluable reference for the pool or spa owner.