Emitters are specifically designed using a turbulent flow path so a small droplet of water will flow consistently
through the orifice in the unit. A series of properly spaced emitters or drip piping will thoroughly saturate the
soil in a flower pot, planter box, shrub bed and even a turf area. Only an experienced certified drip irrigation
contractor should be used to properly design and install this type of system to achieve proper coverage and
precipitation required for the specific landscape and plant material. Pacific Lawn Sprinklers has been designing and installing
Garden irrigation and drip irrigation systems for over years and is well
seasoned in the proper design, installation and maintenance required for a trouble free system.
The choices in drip and micro irrigation products are bewildering. The main
manufacturers such as Netafim, Rainbird, Hunter, and Toro each supply a full line of drip emitters,
misters, in-line emitters and not to mention stakes, fittings, pressure regulators flush valves , filters and many
- Piping: Supply lines for residential drip irrigation systems vary between ½” and 1” in size.
The lines are usually made of PVC piping or polyethylene. Individual emitters that are used mainly in flower
pots and planters utilize an 1/8” poly supply tube (commonly known as spaghetti tubing) that can be easily
hidden and installed out of site for a clean and neat looking Garden irrigation. Soil, rocks and decorative
mulch can be used to cover up and hide the supply lines.
- Emitters: Emitters are available in many different shapes, sizes and colors that offer a
variety of flow rates and pressure compensating choices for every project. Each one is color coded to identify
it’s capacity. Punch in emitters are inserted into a supply line with a specialized tool and can be placed at
specific intervals to achieve a desired flow rate or to supplement a particular area.
- Inline drip piping: a hybrid between a drip emitter and a ½” lateral supply line. The unique
design has equally spaced emitters directly inside the piping that is produced at the time of extrusion
(manufacturing). All the internal emitters have a turbulent flow design to help keep the emitter from
prematurely clogging. This type of piping is packaged in coils of different sizes and flow rates that can be
rolled out and staked to the soil then buried for a completely hidden an clean look. It is recommended to cover
the lines with no more than 2”-4” of soil. Inline drip piping is available for a wide variety of soils and plant
material. Designs for Garden irrigation may be for a clay soil requiring a .5GPH emitter, 1 GPH for loam and
possibly a 2 GPH rate for sandy soils.
- Micro spray heads ( aka low volume sprayers):Micro sprayers utilize low pressure and narrow
diameter supply line just like drip emitters. The sprayers will apply a fine fan like spray of water much like a
larger lawn sprinkler head. They are available in a variety of patterns from 1 foot to 9 feet. They are ideal
for Garden irrigation, green houses, greens roofs, green walls, hanging plants and mass grouped plantings. Micro
spray heads should not be used in turf areas .
- Y Filter: A Y filter is probably the most important component in any drip irrigation system
and is essential because the emitters outlets are so narrow that even turbulent flow emitters can be clogged by
a few flakes of rust or other debris. New construction, older buildings and water main repairs will all stir up
debris in the water lines and can affect the performance of a drip irrigation or micro spray system. That is why
proper maintenance will require the checking and replacement of the filter cartridge. If a supply line has
elevated or continued dirty water a parallel series of filters may need to be installed.
- Pressure regulator: Reducing the pressure from the supply line is required many times because
drip irrigation and micro sprayers are designed to work on low pressure. A preset pressure regulator is
installed on the supply line will step down the supply pressure and ensure the system will not be over
pressurized or blow apart. Proper pressure is essential to delivering the manufacturer’s specific flow rates for
each emitter and sprayer.