Book excerpt: This book provides a highly illustrated guide to the design, installation and maintenance of hot and cold water supply systems for domestic buildings. Based on British Standard BS 6700, the new edition takes into account revisions to the standard since the book was first published in 1991. It has also been updated to give guidance on the 1999 Water Supply Regulations and includes revisions to the Building Regulations. Written for designers and installers, this immensely practical book will also be of interest to technical staff of water undertakers, property services managers and students of NVQ and BTech courses. It was specially commissioned by the British Standards Institution and written for BSI by Bob Garrett, formerly of Langley College of Further Education and past President of the National Association of Plumbing Teachers.