Conder Bypass Separators

The Premier Tech aqua range of Conder Bypass Separators are used when it is deemed an acceptable risk to not provide full treatment for high flows, for example where only small spillages occur and the risk of spillage is small.

They are designed to treat the first 10% of flow generated by rainfall (6.5mm/hr), and separate Hydrocarbons from this initial flow where the Hydrocarbon content is at its highest. Once the flow increases above 6.5mm/hr, and the hydrocarbon content is lower, the water bypasses the separator to a local drainage field or a mains drainage network.


Typical applications include:

  • Car parks
  • Roadways and major trunk roads
  • Light industrial and goods yards
  • Where discharge is to a sensitive environment

Product Features

The innovative design makes the system ultra-compact for easy handling and installation. The product’s low costs and easy service procedure ensure that the system exceeds industry standards in every way.


Designed to treat all flow up to the designed nominal size. Any flow in excess of the nominal size is allowed to bypass the separation chamber, thereby keeping the separated and trapped oil safe.

Technical Information

Compliant to the Environment Agency's PPG3 guidelines, with full BSI certification and fully tested and verified with a range from CNSB 3 to CNSB 1000 (Class 1).


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World leader in onsite and decentralized wastewater treatment, water storage and rain water harvesting solutions, Premier Tech Aqua specializes in the design and manufacturing of innovative and durable solutions.

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