Catalogue Engineering has been building and installing storm water attenuation tanks for 3 years. In this time we have built over 200 tanks across Europe and in the UK.

Storm water attenuation acts as a barrier to stop flash flooding from run off rain water. The water is collected in the tank then released slowly into the local sewerage system once the initial flow has subsided.

The tanks are constructed from a linear low polyethylene membrane laid on a compacted sand base. Inside the tank are specially constructed void expanders that support the structure and are strong enough to build over when the tank is completed. Once the tank is in place, it is protected by an outer wrapping of geotextile mesh and buried below ground level.

It is mandatory to have storm water attenuation for all buildings over 2000 M2 and there are major tax advantages to businesses having rainwater harvesting equipment fitted. Our systems are ideal for most applications including:

• School Installations
  
• Warehouses
  
• Office buildings
  
• Supermarkets

The storm water attenuation systems can also be used as a rainwater recycling system, please ask us for details.

A Typical Installation

1. Rainwater collected from hard surfaces via drains and guttering.
2. Water filtered at inlet of tank.
   
3. Water tank.
4. Restricted outlet.

We are now supplying and installing underground tanks and rainwater harvesting systems from 2000 to 200,000 litres.

• We offer a full service including:
  
• Design and specification
  
• Excavations
  
• Supply and install of geomembrane and geotextile
  
• Inlet pipe work to underground tank
  
• Inlet filter chamber
  
• Finish landscaping.
  

Call us now for a quote and demonstration