|In 2005 an automated irrigation system was installed to cover
the entire garden. The areas of lawn are covered by Nelson Pro
6005 series Gear Drive pop up sprinklers. These sprinklers have
a stainless steel piston for long life and reliability and are
fitted with an anti drain valve to prevent the back drainage
of the sprinkler pipe work.
Each sprinkler has a radius of throw of between 8 and 14 metres
and is positioned to provide good overall coverage.
Micro-sprinklers are used to water shrub and herbaceous borders.
They have interchangeable nozzles and spreaders which make it
easy to control both the volume of water applied and the area
The supply lines for the micro sprinklers are 20mm diameter
low-density polyethylene and this lies on the surface of the
bed below the mulch. Each sprinkler is connected to the supply
pipe by means of a 4mm flexible tube
System automation is provided by a 240-volt powered wall mounted
Irrigation Controller The controller is connected to the station
solenoid valves via a low-voltage multi core cable which is
installed below ground level with the mainline pipe work. The
operator sets the watering day, start time and duration for
each station In the event of a power failure, the program is
maintained by way of a non-volatile memory.