We currently have stock of some reduced sewage treatment plants, Includes full manufactures warranty & delivery. Call us on 01296 841007 to discuss.



Graf Infiltration Tunnels

The Graf Infiltration Tunnel has been mainly designed for the use in private and rural areas.

Suitable for Surface water or treated effluent from a sewage treatment plant with Building Control approval.

  • The system which consists of one or several tunnel modules and two end plates can be extended at will
  • The laying is realized in one or more lines of the same level
  • As the weight of one module is only 11 kilos, the handling of the Infiltration Tunnel is excellent
  • The surface beyond the tunnels is lorry-bearing which offers versatile possibilities

Please note: this product does not have end caps, these must be bought separately.

Waste Water Supplies
From £119.00