Tap Timers offer basic operation to your irrigation system. They don’t require any additional valves or wiring so are often considered an easy way to get into automated watering. They can be connected to a standard garden tap and often come with 25mm/20mm adaptors. You can remove the bottom 12mm hose connector and add tap nuts, directors or pressure reducers. They don’t offer as much individual programming so may not suit complicated watering setups.
The controller is the “brains” of the system. It determines which watering zone operates, when it turns on and how long it runs for. When you opt for an irrigation controller, you generally divide your garden into zones. These zones are commonly determined by the amount of water and pressure available and the type of irrigation you are running. External controllers are fine to be mounted outside in the weather, but should be mounted close to a 240 volt power source.
What's in the Valve Box?
The system in the valve box consists of a ‘manifold’ (a PVC or poly pipe with several outlets) connected to solenoid valves. Each valve is like an electronic tap that opens and closes, allowing water to pass when instructed by the controller. The signals from the controller run along low voltage cable to each of the solenoid valves. The manifold/valve box can be mounted in the most convenient location for your installation, but should be located centrally to all your zones.