means it carries 2000 litres of water and is a 4-wheel drive (4WD) and the 34 (Pronounced three-four), which means it carries 3000 litres of water and is a 4-wheel drive (4WD). Other common appliances are 14 (1000L, 4WD), pumpers and QRV (330-500L 4WD). The newest appliance is the 44 (Pronounced "four-four"), which means it carries 4,000 litres of water and is 4 wheel drive (4wd). These figures are the nominal water carrying capacity. Fire fighting appliances carry water, foam and other fire fighting related tools and equipment. They are designed for bush/scrub/grass fire fighting however can be utilised for a number of other duties. Bulk Water Carriers (BWC, previously called 'Tankers'), which carry large volumes of water (up to 30,000 litres), also respond to rural related incidents, however may be used as water sources for structural fires, car fires, HAZMAT incidents etc., where water sources are minimal. These rural appliances are extremely important for keeping South Australia protected from fires. Almost every town in South Australia would have at least two of these rural fire trucks. The reason that there are many different types of rural trucks, is because the terrain changes a lot in South Australia. A 14 appliance, typically only carries 1000 litres nominally, but new single cab variations hold the capacity for up to 1600 litres. 14 appliances are extremely useful for getting into small tracks which larger appliances can not. Large 34s often have trouble in getting into smaller areas. 24s are the most common, because they are not too heavy and big, but carry a reasonable amount of water, which can last a good time before having to fill up. In most parts of South Australia outside major centres there is no water mains, so this is where Bulk Water Carriers come in handy. These BWCs, often at a rural fire, will be stationary at the edge of it, for smaller trucks to fill up from. when empty it is their job to go and find water in places including, rivers, dams, swimming pools and water tanks. Urban appliances Urban appliances are usually Pumpers', 24Pumpers' (24P) or 34Pumpers' (34P). They have bigger pumps, and are more suitable for responding to urban incidents like house fires, car accidents etc. Specialised appliances These are trucks which are designed for one purpose, like Rescue, or HAZMAT. Usually these are combined with another truck. (e.g. A pumper will