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FOREWORD

These guidelines were prepared in accordance with international and regional standards. Much attention was also given to the local conditions to ensure acceptable and troublefree installations.

This is the fourth edition, and has a wider coverage on drainage requirements in buildings. In this we have tried to give a proper blend of different types of modern installation technologies, suitable for actual needs. The manual includes essential details of technologies of different countries. Expressions vary from one region and language to another and this book aims to use internationally acceptable expressions without creating new words or definations.

As the Mechanical Training Center has a Sanitary Section, updated schooling materials were required. These guidelines were collected to give essential knowledge on sanitary installations in buildings in Nepal. Although the guidelines are quite complete they are not intended for self-teaching. This manual cannot and shall not be used in place of methodologically introduced teaching materials nor should it be used in place of school lessons.

We are grateful to the concerned authorities in Nepal and to Helvetas for having supported this new edition. Thanks also to Mr. R.P. Shah, Draftsman at MTC, for his many drawings included in this book.

Andreas Bachmann & Heinz Waldvogel