In February 1985 a Byelaws Guidance Panel{1) was formed by the United Kingdom Water Fittings Byelaws Scheme(2) to produce a Guide to Byelaws the aim being that it should: (a) assist water inspectors, manufacturers, architects, consultants, merchants, installers and consumers to understand byelaws based on the Model; (b) bring about uniformity of approach to byelaw enforcement throughout the UK; (c) be suitable for use as a training document; {d) be subject to continual review by the Panel to ensure its compliance with the latest requirements; (e) comply with byelaw guidance issued by the Department of the Environment; and (f) be based wherever possible on British Standards. 3. This Guide is intended to be applicable throughout the United Kingdom and includes a copy of each byelaw.

FOREWORD vNOTES ON THE USE OF THE GUIDE viiINDEX TO BYELAWS ixPART I GENERAL PROVISIONSPART II PREVENTION OF CONTAMINATION OF 17WATER FROM CONTACT WITH UNSUITABLEMATERIALS OR SUBSTANCESPART Ill PREVENTION OF CONTAMINATION OF 27WATER BY BACKSIPHONAGE, BACKFLOWOR CROSS-CONNECTIONPART IV PREVENTION OF WASTE, OR 91CONTAMINATION OF STORED WATERPART V PREVENTION OF WASTE OF WATER 117FROM DAMAGE TO WATER FITTINGS FROMCAUSES OTHER THAN CORROSIONPART VI PREVENTION OF WASTE FROM OR 127CONTAMINATION BY UNSUITABLE ORIMPROPERLY INSTALLED WATER FITTINGSPART VII STOPVALVES, ETC. 159PART VIII WATERCLOSETS AND URINALS 175PART IX PREVENTION OF WASTE, MISUSE AND 189CONTAMINATION OF WATER FROMDRAW-OFF TAPS, BATHS, BASINS, SINKSAND OTHER FITTINGS PART X PREVENTION OF WASTE OR 197CONTAMINATION OF WATER FROM ANYHOT WATER SYSTEMPART XI TAPS FOR DRAWING DRINKING WATER 209PART XII NOTICES TO UNDERTAKERS 213PART XIII PENALTIES 217PART XIV REVOCATION 219APPENDIX A - CONSTITUTION OF PANEL PRODUCING 223GUIDEAPPENDIX B - METRIC CONVERSION TABLES 224APPENDIX C - LIST OF BRITISH STANDARDS CITED 225IN GUIDEGUIDE REFERENCES