Landscape Irrigation FAQs

Landscape Irrigation FAQs

Do You Have Ready Answers to These
Frequently Asked Questions?


Both customers and potential customers have a lot of questions when it comes to landscape irrigation systems. Here are some of the most common, along with our best answers.

Q: Why do I need an irrigation system? My area gets plenty of rain.

A: In Ohio, turf grass needs about an inch of water per week. So unless your property receives at least that much rain regularly each week, you probably need to irrigate. But nature doesn’t work that way. Even areas with rainy climates can experience dry periods. Your landscape can suffer damage after only a few days without water. You simply can’t count on annual rainfall to adequately meet your landscape’s needs.

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Sources: Trajectory WebDesign, WebSolutions

But an irrigation system also prevents you from overwatering your landscape. Too much water can be harmful to your soil, drowning your plants, encouraging root rot and other diseases, and causing weeds to germinate. An irrigation system puts you in control of the amount of water used on your landscape.

In addition, irrigation systems support hydrozoning, the grouping of plants with similar water needs into irrigation zones. These zones not only encourage a healthy landscape, but they can save both water and money.

Q: Will I save money by installing my own irrigation system?

A: Perhaps, but only in the short term. A professional irrigation contractor has years of experience designing and installing the most cost-effective and efficient landscape irrigation systems. Most have received specialized training and certifications, and they utilize specialized equipment to significantly reduce installation time.

Most homeowners are not knowledgeable about the numerous factors that must be taken into account when designing and installing an irrigation system. Soil conditions, land grade, plant location and sun exposure all must be considered for proper installation. Are you proficient in PVC piping, valves, controllers, drip lines, sprinkler heads, and all the other system components? Probably not.

A properly designed and installed landscape irrigation system requires a professional in order to save money (and headaches) down the road.

Q: Why do I need to shut down my irrigation system for winter?

A: When water freezes, it expands. Irrigation system pipes are not buried beneath the frost line. If all of the water is not removed from your system’s pipes, valves, and sprinkler heads before the first deep freeze, your pipes will crack, resulting in costly repairs.  

Winterizing your system is a job best left to the professionals. Attempting to blow out your own sprinkler lines using an inadequate air compressor can result in water left in pipes. When this happens, you can expect freeze damage that must be repaired before spring startup.

Q: What’s the advantage of a smart irrigation system?

A: A smart irrigation system will you save you both time and money. Smart systems optimize your sprinkler run time. That means they always water at the right time of day for the right duration and according to weather conditions. They keep you from overwatering, which not only wastes water and money, but can damage plants.

With a smart system, you won’t have to make manual adjustments to your irrigation system due to unpredictable weather. A smart irrigation system can also shut itself down whenever a leak is detected.

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Q: Will I have to shut off my irrigation system when it rains?

A: Most irrigation contractors will recommend installation of a rain sensor. This device will automatically turn the irrigation system off whenever rainfall occurs. Once the rain ends, the sensor dries out and is reset. So, even if you’re away from home, your system knows what to do.

Q: How does a drip irrigation system compare to an above-ground sprinkler?

A: As opposed to sprinkler heads which spray a planted area above ground, drip systems soak the ground via tubes that are buried just below the surface. The emitters within the tubes slowly deliver water directly to the base of the plants.

Drip irrigation is ideal for landscape beds with plenty of plants and shrubs, as it can help reduce the risk of plant disease  associated with high levels of moisture. Drip lines can be incorporated as a separate zone within a larger overall sprinkler system.


Sources:
Featured Image: Pixabay
Lawn and Landscape
Landscape Management
Irrigation Tutorials

 

Give Your Sprinkler a Spring Tune-Up

Give Your Sprinkler a Spring Tune-Up

Sprinkler System Start-Up Tips


The warmth of spring means it’s time to prepare your landscape sprinkler system for another season of watering.

Hiring a qualified irrigation professional to perform tasks like spring start-up is always best, but experienced do-it-yourselfers, can follow these tips:

Timing Is Everything

First of all, you need to make sure spring has indeed sprung. The soil beneath your landscaping is always the last to thaw, so use a shovel to confirm that the ground is frost-free 12 inches down. Starting your sprinkler system while the ground is still frozen can result in damaged pipes. Is the ground still hard as a rock? Wait another week and try again.

Then check the settings on your sprinkler to make sure they’re appropriate for your landscape’s watering needs. Replace the back-up battery in the timer/controller, if necessary.

Go with the Flow

Before turning on any water to the system, double-check that all manual drain valves are returned to the “closed” position.  When you first turn the water back on, be sure to open the system main water valve SLOWLY to allow pipes to fill with water gradually. Opening the water valve to quickly can result in a high-pressure surge called “water hammer,” which often causes burst pipes and damaged valves.

Check for rocks, dirt, sand and other types of debris that could block your sprinkler heads. And keep an eye out for spray heads that may have become buried with debris over the course of the winter.

Nozzles and sprinkler heads are designed to withstand normal wear and tear of irrigation, but not errant lawn mowers or snowplows. So be sure to replace all cracked, chipped or worn components.  A broken or leaky sprinkler can wreak havoc on both your landscaping and water bills.

Valves and Pressure Gauges

The valves in your irrigation system are the system’s heart. It’s important to visually inspect each valve to determine that it’s operating properly. You can do this by manually activating all zones from the controller.

Also, make sure the water pressure is at a safe operating range.  Too much pressure will result in cracked pipes, busted valves, sprinkler head leaks and inefficient watering.

A water pressure gauge is often helpful. These devices typically connect to a hose faucet and give you a good idea of the pressure in your irrigation system. (Suggested operating range is typically 40 -65 PSI.) Hint: If water is “misting” out of your sprinkler heads, your pressure is too high and should be reduced.

Think It’ll Rain?

Most modern irrigation systems are equipped with a rain sensor. This device should also be checked prior to activating your system in the spring. Here’s how:

  1. First, consult the systems operator’s manual to determine the proper setting for testing your unit. (For example, some systems must be set to the “manual all stations” setting to test them. If that is the case with your system, you cannot test it on the “manual single station” setting.)
  2. After properly setting the irrigation system control, check the system to make sure it came on. (You may need a helper to assist you.)
  3. Once you have confirmed that the sprinkler is running, depress the plunger located on the top of the rain sensor.  The sprinkler system should stop irrigating within a few seconds.
  4. If watering does not stop when you depress the plunger, you’ll have to troubleshoot the system. Confirm that all wiring connections on the sensor and on the sprinkler control unit are tight. Check to make certain that the jumper tab, also called a jumper wire, was removed when the rain sensor was hooked up to the control panel.

Also be aware that the disk inside a rain sensor can become clogged with dirt or insects, which can keep it from functioning properly. Consult your operator’s manual for the correct procedure to clean the disk.

A Word about Backflow

A backflow device has been installed on your irrigation system in accordance with Ohio state law. This device prevents a cross-connection from occurring between the drinkable and undrinkable water in your home.

Spring is a good time to have your backflow preventer tested, as annual testing of the device is required in the state of Ohio. This testing can only be done by individuals who have been certified by an approved testing school. Backflow testers must have at least 24 hours of training in the classroom and hands-on test lab.

To locate a certified backflow tester in your area, Click Here.

Leave It to the Pros

Again, it’s best to leave all spring start-up tasks to the professionals. A qualified service technician will go through your irrigation system zone by zone and check every irrigation spray pattern for optimum turf and plant coverage, as well as check each sprinkler head and valve for any leaks. He can also test and clean your rain or weather sensor to ensure top performance.

Lastly, the technician will program the controller for the proper irrigation schedule, based on your landscape and weather conditions, as well as neighborhood watering restrictions.


Sources:
Hunter Industries
Rainbird
SF Gate