Maybe heavy is the vehicle weight - the SEM sight also places a 1300ltr appliance as Heavy Duty Urban Pumper and alike.
NSWFB also have heavy pumpers - large valume tanks and serious pumps as do QFRS - very impressive.
QFRS state: The Scania Heavy Pumper is designed to provide the full range of QFRS services, with the additional features of an increased on-board water supply and heavy duty road accident rescue equipment.
For a look at their heavy pumper tanker go to :
http://gallery66225.fotopic.net/p12836308.htmlMaybe this is what we could put on the urban rural interface
- for brigades with their own structural risk (high) and also rural risk (high)