Hardy offers pool owners and professionals basic information on many aspects of pool construction, maintenance, and ownership. Fourteen chapters brief readers on options for materials, water chemistry, cleaning principles, chemicals and cures, pool problems, automatic cleaners and other features, winterizing techniques, safety, and sanitizing systems, among other topics. One chapter is devoted to hot tubs and spas. Annotation ©2007 Book News, Inc., Portland, OR (booknews.com)