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This page contains answers to common questions handled by our support staff, along with some tips and tricks that we have found useful and presented here as questions.
 


   

How often should I water my lawn and for how long?

Because each lawn is unique, the answer to this question can vary greatly. The best watering times and length of watering depends on your climate, the type of grass and soil conditions. It is generally preferable to water infrequently for a longer period of time than frequently for short periods. Watering infrequently provides deep water sources that roots search for. Frequent watering promotes surface root growth. For specific information, we suggest you contact your nearest nursery, garden center, or the local horticultural extension office and consult with them about a watering schedule best suited to your area.

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What time of day should I water?

We recommend watering early in the morning. Water in the middle of the day only if it is cool or if you have a new lawn requiring constant moisture. You only should water more than once per day if evaporation is extreme or if your soil won’t hold water because of the clay content or the slope of a hill causes too much runoff.

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What maintenance do I need to do on my irrigation system?

Monthly you should:
-Adjust timer settings.
-Check and adjust sprinkler sprays.
-Clean mainline filter (if installed).

Once Per Season you should
 -Check wire and wirenuts for any damage.
-As needed you should: Unclog sprinkler heads.
-Adjust installation levels of heads to ground level.
-Clean grass and debris from around sprinkler heads.
-Ensure all heads have popped up through grass.

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Why do I have dirty water, and if I have dirty water, what should I do?

Some parts of the United States have secondary water systems, pump systems or backyard wells to supply water to sprinkler systems. Invariably, these water sources have a lot of debris, sand, moss, seashells and other contaminants in the water which are not trapped by the inlet screen. These particles act as miniature drills and damage valves, fittings and heads during sprinkler operation. To eliminate most of these problems, We  recommend installing a filter on the mainline. There are a variety of types, but we recommend a "wye" or "tee" filter that can be easily accessed and cleaned. Look for a stainless steel filter if your water is particularly grimy. Be sure to search for a filter that will handle enough water flow.

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What are GPM and PSI and how do I figure them out?

GPM stands for Gallons Per Minute. This refers to the amount of water your irrigation system receives through the pipes. PSI stands for Pounds per Square Inch and refers to the pressure of water being supplied to your system. Both need to be figured out before you can design an effective irrigation system or submit for our design service. Many home centers, rental agencies or hardware and plumbing stores let you rent a pressure gauge to test your system pressure (or PSI). Your water company can also tell you the pressure of water being supplied to your residence. Of course, it is always best to take the water and pressure reading yourself in order to provide accurate design specifics. This is especially important in many areas where the water pressure delivered to a residence can be extreme and a pressure regulator must be installed to protect the equipment and ensure good irrigation coverage. To calculate the GPM, you simply need a bucket of any size (as long as you know exactly what size it is), a watch with a second hand, and some simple math. Go to the hose bib closest to the water feed coming into your home or building. Make sure there is no water running anywhere inside or outside while you do this test. Turn the hose bib on full blast and place the bucket under the bib. Time exactly how long it takes to fill the bucket. Then, take the size of the bucket and divide it by the time it took to fill it up. Multiply by 60 and round your answer to the nearest whole number. This is the GPM rate coming into your system.

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How much water pressure do I need?

As a general rule, rotors and impact sprinklers require at least 30 psi, while spray heads operate best at 30 psi or less. Check the performance chart for the product you wish to use to determine the best operating pressure for your specific application.

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Last modified: 03/17/09.