IMG_20150306_175803856-001Reverse or Negative Air Pressure in drainage is a huge problem. In a pipe, airflow should push outward. Smells, germs, pathogens should exit the pipes, not travel back into rooms. Water flowing through pipes induces airflow in the right direction. When water and/or air encounter a blockage or a dry trap, they can reverse. Sometimes poorly placed vents or a lack of venting on pipes can also exasperate this problem.

Our Pressure-teq tool is a snap-on device, (about the size of an external hard drive) that monitors active live drainage for a period of 2-3 days. We tend to install three at a time to vulnerable pipes and take simultaneous readings. We can determine based on these digitally recorded readings where pressure is building up, how much is building up and if it’s reversing. This temporary installation is vital on many buildings to identify the problems occurring and where they are coming from.


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