Category Archives: CPD

CPD Article: High Rise Drainage Ventilation

The importance of the water trap seal Being the only barrier between the drainage system and the living and/or working space, it is critical that the water trap seal is maintained at all times. This protects the occupants of the building … Continue reading

Posted in CPD | Leave a comment

CPD Article:
Venting External Drainage Systems with Active Carbon Filters

What is an active carbon filter for drainage? It is a two-way vent that uses active carbon as a filter to absorb the sewer gases (primarily hydrogen sulphide H₂S and methane CH4) which come out of a drainage vent. Due … Continue reading

Posted in CPD | Leave a comment

CPD Article: Introduction to Air Admittance Valves (AAVs)

Introduction to Air Admittance Valves (AAVs) Whilst there is a growing awareness and knowledge of the ever-increasing risks to health from the drainage system, it is often given little thought – effectively being out of sight and out of mind … Continue reading

Posted in CPD | Leave a comment