Environmental Engineering Reference
In-Depth Information
Fig. 7.9. Fixed sprinkler heads usually operate at low water pressure, producing
a fine spray covering a small area.
to water home lawns, flowerbeds and other landscape plants. Some
sprinkler heads can be adjusted to control the amount of water delivered.
They can also be adjusted to deliver water in a variety of spatial patterns.
A full head delivers water in a full circular pattern; other typical heads
irrigate half and quarter circles. Adjustable heads can water any part of a
circle, from 0
. Some fixed sprinkler heads are designed to
water rectangular and square areas of turf, and end, centre and side-strip
patterns are available for grassy pathways, side yards and other tight
spaces. Fixed sprinkler heads are most frequently installed as pop-up
systems but are sometimes installed above ground. They are relatively
trouble free and are the least affected by wind.
8
to about 360
8
Rain guns
A rain gun is usually a huge impact-type sprinkler used to irrigate a large
turf area. On some sport fields, especially polo fields and horse-racing
tracks, they are at times attached to fire hydrants and used for quick
irrigation of turf. Their role is rather minor.
Oscillating sprinklers
Oscillating sprinklers, also called wave sprinklers, are most commonly
used by homeowners on relatively small areas. Water from a garden hose
is delivered through a row of small nozzles (holes) in a bent pipe. The
pipe turns slowly back and forth, sweeping the row of small streams of
water back and forth across the area to be watered.
