Sprinkler systems for the yard
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Automatic irrigation systems are convenient, especially for those who travel. If properly installed and programmed, automatic irrigation systems can even save you money and help with water conservation.

Dead lawn grass and plants need to be replaced, and that can be expensive. But the savings from automatic irrigation systems can go beyond that.

Watering with a hose or with an oscillator wastes water. Neither method targets plant roots with any significant degree of precision. Automatic irrigation systems can be programmed to discharge more precise amounts of water in a targeted area, which promotes water conservation.

When it comes to irrigation equipment, we can speak of four basic components of automatic sprinkler irrigation systems: the timer or "controller," irrigation valves, underground piping and sprinkler heads. Even among sprinkler irrigation systems, there are various types of "head" equipment for discharging water. "Spray" heads and "rotor" heads are two of the most common.

So what's the difference between "spray" lawn sprinkler heads and "rotor" heads?

Spray lawn sprinkler heads are sometimes designed to pop up out of the ground when the sprinkler system is activated, while others rest on pipes that remain aboveground at all times. Spray heads discharge a large volume of water in a relatively short amount of time. For this reason, sprinkler systems with spray heads are most suitable for even surfaces, not slopes. If you do use a spray head on a slope, program your sprinkler system such that water is discharged over several shorter periods. This will help you avoid wasteful run-off.

By contrast, rotor lawn sprinkler heads have a lower application rate, so they're simpler to use on slopes. Rotor heads also apply water more uniformly than do spray heads, making them more suitable for watering larger areas. For people who wish to irrigate large areas of lawn, sprinkler systems with rotor heads would be a logical choice. - ArticleCity