Choosing a Sprinkler
System for Your Lawn
come in 4 basic designs. Each of these sprinkler types has their
advantages and disadvantages. Lawn size, frequency of watering and soil
types are all important factors when choosing which type of sprinkler
is best for you.
Of the 4
basic designs a stationary or fixed sprinkler is probably the worst
type you can purchase. These types of sprinklers work best for spot
watering or used in conjunction with another sprinkler system. Varying
flow rates are this type of sprinkler's greatest disadvantage. At the
outside edge of the spray pattern the grass can receive upwards of 6-8
inches of water while at the base it may only receive 2 inches of water
per hour. This is due to the water being directed through the fixed
pattern of small holes in the base.
sprinklers use a curved piece of metal or plastic with small holes that
move back and forth to deliver the water in a rectangular pattern. By
pausing when the spray is furthest away this sprinkler does a better
job of delivering the water in a more effective pattern. More up to
date models will allow you to adjust this pattern as well as adjusting
the width of the spray.
sprinklers use one or more arms to throw the water in a circular
pattern. This type of sprinkler has a fairly decent radius but suffers
in the uniformity of the water being delivered to the lawn. Generally
speaking the majority of the water is delivered to an area 4-9 feet out.
For a large
area an impulse or impact sprinkler is a good choice. By using a
combination of a jet internally and a hammer externally this sprinkler
can shoot jets of water in a circular pattern. On many models the head
is adjustable from a fine mist to a strong pulse or anything in
between. Coverage is good with this type of sprinkler.
Inground Sprinkler System:
homeowners the choice for a sprinkler system would be an in-ground
system. By installing the sprinkler heads at key locations you ensure
uniform coverage and excellent water delivery. Most units come with a
timer to make watering your lawn even more convenient. Some models also
incorporate a sensor to let the system know if it has been raining to
curb the cost of your watering bill. The spray heads pop up from the
lawn when activated and return to their almost hidden position when
finished. When having your lawn aerated ensure the heads are clearly
marked to avoid damage to them while the lawn is being aerated.
One of the
more odd sprinkler systems is what is known as a travelling sprinkler.
I haven't come across too many of these which is too bad. This system
while looking a little bizarre gives good thorough coverage and
excellent rates of moisture. The sprinkler follows the hose or track
laid out by the homeowner. By varying the hose pattern you get
excellent coverage. The pressure of the water exiting the rotating arms
propels the unit along.