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The Problem of Hydrogen Sulphide in Sewers - to download click here

The Use of Clay Flue Liners and Terminals - to download click here

The Specification, Design and Construction of Drainage and Sewerage Systems using Vitrified Clay Pipes:

• Reference documents  shown in red text are fully described in the
  "References" section at the end of the document.
• Table references shown in blue text in  Appendices A and B are
  provided as separate table files following the appendices.
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