Combined Sewer Overflow (CSO)

To resolve the dilemma of excessive flow in sewers Marshalls Civils & Drainage offer a range of bespoke combined sewer overflow (CSO) chambers which reduce the overcapacity at the treatment works.

Marshalls Civils & Drainage can custom design a combined sewer chamber to match your wastewater treatment and sewer needs and depending upon the size of the sewer and flow specifications, there are a number of options available from one-piece chambers to flat pack arrangements which will not only reduce the congestion but also offer the advantages of being made offsite which can reduce installation times and costs.

• Used to reduce the overcapacity at the treatment works
• Custom design a combined sewer chamber to match your wastewater treatment and sewer needs
• Reduced installation times and on-site costs

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