Maintenance of draught equipment 
Your draught dispencer should be sanitised preferably twice a month although once a month should be sufficient. I use a modified garden pressure spayer.
Run the caustic solution (supplied) through your dispencer to avoid build up of bacteria in your beer line. It is quick and easy to do yourself.

Gas

Gas is usually rented from Afrox or any other gas supplier. Usually you have to pay a monthly rental.
Suremix 100 is 100% co2 for lager beers.
Suremix 60 and 40 for ales and stouts is a co2 and nitrogen mix.

Most home users use a co2 fire extinguisher 2kg or 5kg.
The standard regulator will fit both of these options.

The gas is used as a propellant replacing the volume in the keg.

Parts and accessories

Beer coupler (connects to the keg to let the gas in and the beer out)
Tri-lobe Coupler for Castle, Hansa and most microbrewery beer
Sanki/Well type Coupler
for Windhoek, Amstel, Pilsner Urquel
John Guest fittings
Quick fit beer line connectors, to connect beer tube and for regulators and couplers.
Use them once and you will never use a clamp again. All Draught dispencers are already fitted with John Guest fittings.
Gas Regulator
Suremix 100
Gas Regulator
Suremix 60 or 40
Drip Tray
Black plastic tray
Drip Tray
Chrome plated tray