Reduce the load on the combined sewer network and control surface water with retrofit Sustainable Drainage Systems (SuDS) in space-constrained urban areas.

Separating surface water out of combined sewers in urban areas to reduce flow volumes can be difficult due to the lack of space available.

Design engineers looking to retrofit SuDS to deal with the surface water can choose from a range of proven management solutions for controlling the flow, storing or infiltrating excess volumes and providing reliable treatment to preserve the quality of receiving watercourses.

Enhance, enable & protect

All our surface water products work with, enable, enhance or protect natural SuDS such as ponds and swales, helping design engineers to deliver compliant SuDS in space-constrained urban areas. For example:

• Providing pre-treatment for a pond will ensure a good water quality and eliminate the need for a sediment forebay, saving space and simplifying maintenance procedures.

• Siting storage or infiltration beneath an existing green space can preserve a community amenity area whilst still preventing flooding.

• Find out more about our range of Hydro-Brake® Flow Controls.
• Find out more about our space-saving, high strength storage solutions.
• Find out more about our range of small footprint, surface water treatment systems.