Catalogue Engineering specialise in building bespoke welded geomembrane structures to harvest and utilise the rain water that falls on your building and hard standing surrounding it.

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. The recycled water is returned to a dual water system in the roof of the building for use.

The harvested rainwater can then be utilised in many ways for commercial and domestic use including;

• Golf Course / Garden Watering
• Toilet flushing
• Car Washing
• Cooling
• Fire Fighting

There are major tax advantages to businesses having rainwater harvesting equipment fitted as they can offset 100% of the cost of products on the Water Technology List against corporation tax and income tax. See www.eca-water.gov.uk for the full list. On top of this, rain water Harvesting in commercial buildings can reduce water bills by up to 70%.

A Typical Installation

1. Rainwater collected from hard surfaces via drains and guttering.
   
2. Water filtered at inlet of tank.
   
3. Water tank.
   
4. Pump chamber.
   
5. Loft header tank.
   
6. Mains water tank.

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
  
• Pump chamber
  
• Outlet filter chamber
  
• Loft header tank
  
• Electrical connections bypass pipe work
  
• Finish landscaping
  

Call us now for a quote and demonstration.