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The History of Sprinkler Repair Long Beach, California

Landscape Water Conservation and Management

Long Beach  Lakewood  Downey  California

Q. Are there some easy things I can do to save water in a landscape?

A. Check the irrigation system regularly for physical and operational problems that reduce the efficiency and function of sprinklers, drip emitters, and other water delivery devices. Correcting these problems can improve the uniformity of water application, reduce water use by 10 percent or more, and likely improve the health of Lakewood plantings. Walk through an area while the irrigation system is running and repair or replace sprinklers or other types of emitters that are broken, sunken, crooked, or clogged with soil or debris. Also, be certain that plants are not blocking or interfering with a sprinkler’s spray pattern, that roots are not clogging drip emitters, and that all sprinklers and emitters are of the same manufacturer and model.  Check that automatic valves are functioning and repair any leaks at valves, spray heads, and other connections.

Q.  Does a Downy landscape have to be re-planted with specific drought resistant or “California Friendly” plants to save significant amounts of water?

A. No. Field research studies indicate that most established landscape trees, shrubs, and groundcovers, regardless of the species planted, perform acceptably with about 40% to 50% of the water required to maintain the average lawn in good condition.  This is comparable to what California Friendly, native, and so-called drought resistant plants require to perform acceptably in landscapes. The perception is that species traditionally grown in existing landscapes require more water so they are usually over watered.
Q.  What plants are actually drought resistant?

A. Traditionally used tree, shrub, vine, and groundcover plants along with many native and California Friendly plants have drought resistance traits that enable them to perform acceptably in landscapes with modest amounts of water. Traditionally used plants are often over watered and perform well with much less water than they are typically given. Highly drought-resistant plants can survive extended periods with no precipitation or irrigation, but this does not mean they can provide acceptable landscape function and performance with no water.
Some California native plants used for landscaping originate in the relatively cool, moist climate of the coast or in foothill and mountain climates, making them susceptible to drought and prone to injury when grown in warmer and drier areas of the state if summer irrigation is not provided.

No native or commonly used landscape plant is drought-resistant until it becomes established. All plants require a steady supply of moisture for about one year or more after they are first planted.  Once non-turf landscape plants have well developed root systems, they typically perform well with limited summer water.

Q.  How much Long Beach water can be saved by removing a lawn?

A. Water savings depends on the type of turfgrass removed, which plants, and how many, will replace it, and how effectively the water applied to new plants is managed. If plant material is changed but irrigation practices are not, then little water savings will be realized. Turfgrass water requirements vary by species. Warm-season lawns, such as bermudagrass, zoysiagrass, buffalograss, and St. Augustinegrass, need about 20 percent less water than widely planted cool-season lawns, such as tall fescue. Also, warm-season grasses can remain alive and largely green, though not lush, when irrigated at the same level as trees and shrubs. So, simply replacing a tall fescue lawn with a warm-season one will significantly reduce the water needs of a turf area.
Replacing a lawn with a mix of trees, shrubs, groundcovers, and vines that create a nearly complete plant canopy over the landscape will realize the least water savings, but still reduce water demand by at least 50% of cool-season grass or at least 40% of warm-season grass if the planting is well-designed and the irrigation system is well-managed and highly efficient. Maximum water savings can be realized if cool-season grass (such as tall fescue) is replaced with mulch and a few, if any, drip irrigated woody plants. However, there are significant functional, aesthetic, and maintenance differences between fully 90805 and sparsely planted landscapes that must also be considered before choosing a lawn removal and replacement strategy.

Q. Will lawns or landscapes suffer if they are not irrigated every day in the summer?

A. Established lawns and landscapes do not require daily summer irrigation except in a few extremely hot inland and desert areas that also have sandy or decomposed granite soils. Only newly planted lawns and landscape plants are likely to be damaged by not receiving daily summer irrigation.

Tall fescue lawns can perform well when irrigated 2 to 4 times per week in the summer, while bermudagrass and other warm-season lawns can usually be irrigated less frequently. Trees, shrubs, and groundcovers will perform well when irrigated every 5 to 10 days. Follow the approach described in the answer to the next question to reduce irrigation days and conserve water.

Q.  What is the best approach for conserving water in a lawn or landscape?

A. The key to conserving irrigation water is to increase runtimes and extend the number of days between irrigation events rather than reduce the runtime and keeping the same frequent irrigation interval. To do this successfully, schedule slightly longer irrigation runtimes so that the entire root zones of plants are rewetted at each irrigation and gradually increase the interval between irrigations over a few to several weeks. 90713 This practice will save water in the end and allow plants to adjust. After extending the interval between irrigations, the water budgeting or seasonal adjust feature found on many controllers can be used to fine tune runtimes and achieve optimum water conservation.

Remember that tall fescue lawns normally have roots 6 to 12 inches deep while roots of bermudagrass and other warm season grasses are normally at least 12 inches deep. The majority of roots of trees, shrubs, and groundcovers are normally found within 12 to 24 inches of the soil surface.

In order to fully wet the soil to these depths without creating runoff or puddling of water will usually require scheduling two to four relatively short irrigation cycles of 5 to 15 minutes or so on each irrigation day, depending on slope, soil type, output of the irrigation system, and how much water is needed. Be certain the irrigation system is functioning well and water is applied uniformly over the area.

Q.  How much can 90712 irrigation be reduced without hurting a lawn? 

A. It depends on the species of grass that dominates the lawn and the amount of water currently being applied. If the lawn is primarily tall fescue or another cool-season grass and it is being well watered with no obvious drought symptoms or brown areas, then the amount of water can probably be reduced by 10 to 15 percent without seriously injuring it. You may see brown areas develop over time after reducing water by this amount, however. Brown areas that develop in lawns when water is reduced are often a sign that the irrigation system applies water unevenly rather than that the amount of water is too little to meet the turfgrass’s needs.

If the lawn is predominantly bermudagrass or another warm-season grass and you are keeping it well watered, you can probably reduce the amount of water by up to 25 percent without seriously hurting it. If the lawn already has brown areas from too little water, then reducing the amount of water further may cause serious damage or death.

Always gradually reduce the amount of water applied following the approach described above.

Q.  How much can irrigation be reduced without hurting trees, shrubs, and other landscape plants? 

A. The amount of water given to these plants can often be reduced by 20 to 40 percent because over irrigation is common. Gradual reductions applied over a few to several weeks using the approach described above is important so plants can adjust to less water, especially if the reduction is more than 10 percent.

Q.  When is the best time of day to irrigate? 

A. Irrigating during the very early morning hours is best, generally between 2:00 A.M. and 6:00 A.M. Evaporation is lower and usually there is little or no wind to disrupt the pattern of sprinklers during these hours. In addition, water pressure is more favorable for irrigation systems in many areas during this period. Nighttime watering in California does not normally cause greater incidence of plant disease because the humidity is relatively low. Contrary to common belief, midday irrigation does not harm plants.

Q. If water becomes severely restricted, how should priorities be set to save La Mirada  landscape plants?

A. Remove plants in crowded beds or low-priority plants competing for soil moisture with more important plants. When water is limited, most people choose to water fruit trees, landscape trees, and shrubs.  Lawns, groundcovers, and bedding plants can be re-established over a relatively short time, but trees and shrubs need years to mature and are less easily replaced. A few deep, thorough waterings spaced several weeks apart from spring through summer can be enough to keep most trees and shrubs alive when water is in short supply. Many tree and shrub species will drop leaves or wilt under severe water shortage, but will survive.  Under-watered fruit trees probably will produce less if any fruit, but will survive.

Q.  How long will it take a Lakewood, Ca.  lawn to die from lack of water?  

A. If you stop watering a lawn, it will gradually turn brown signifying it has died or become dormant. Depending on weather conditions, this may take from 1 to 6 weeks for most lawn grasses, but it might take longer for deep-rooted grasses like bermudagrass. The first signs of inadequate water will be wilting of grass blades and a blush-gray appearance. Next, leaf blades will yellow and eventually become brown.  The lawn will probably not turn from a uniform green to a uniform brown, but will instead look mottled with green, yellow-green, gray, and brown areas. A lawn that recently turned brown from drought can often be revived with regular, thorough watering.

Q.  When should Downey trees, shrubs, and other landscape plants be planted in a dry year or if drought is expected?  

A. Hold off planting until fall or winter to take advantage of cool weather as well as fall and winter rains. The planting site may be prepared in spring or summer, however.

Q.  How often should newly planted trees and shrubs be watered?  

A. The root balls of newly planted trees and shrubs need to be kept moist until a network of roots grows out into native soil. Newly planted container plants may need watering every day for several weeks during warm Seal Beach weather.  Adding a 2 to 4 inch thick layer of mulch reduces water loss and weed problems.

Delaying planting until the fall can reduce the frequency of irrigation required to maintain moisture in the root balls of new transplants and takes advantage of fall rains.

Q. If a lawn dies, or is damaged due to drought, when should it be replanted? 

A. Do not replant a lawn until there is enough water available from rainfall, irrigation, or a combination of the two. Assuming water is available, the best time of year to plant lawns is in the fall or spring for cool-season turfgrasses (tall fescue, rye, etc.) and late-spring or summer for warm-season turfgrasses (bermuda, zoysia, St. Augustine).

Q.  Will adding polymers or similar “water conserving” products to soil really conserve water? 

A. Polymers and similar products by themselves do not conserve water.  They usually increase the amount of water a soil can hold, but plants still need the same amount of water.  Thus, adding a polymer to a soil can extend the length of time required between irrigations but will not alter significantly the amount of water used by plants.  Field research studies with polymers so far are relatively few and inconclusive.  Results suggest that, although most polymers can extend the time between Long Beach waterings, some lose effectiveness when fertilizers and other natural salts are present in the soil.  They will provide little benefit in soils with high clay or high organic matter content.  When using a polymer product, add enough polymers to effectively amend the soil to the depth where most of the plants’ roots are and mix it evenly into the soil.  A large volume of polymer will be required to increase significantly the soil’s water holding ability especially where relatively deep-rooted plants like trees and shrubs are grown.

It was almost like a perfect Downey storm.

Demand was growing, but awareness of water sustainability was also growing. Municipalities and water districts were beginning to call attention to the need for water conservation.

In 1997, Nelson Irrigation, a Huntington Beach manufacturer of agricultural irrigation products, formed Walla Walla Sprinkler Company and introduced the MP Rotator to the landscape market. It became an industry-wide game changer.

Mike Baron, national water management and specification manager at Toro Irrigation, Riverside, California, remembers when the MP Rotator first came on the market.

“I was the field marketing effort for Nelson at that time,” recalls Baron. “The high-uniformity, low application rate was fairly novel for a spray head.”

When the MP Rotator was originally introduced, it was “not as a water saver but as a problem solver,” Baron says.

Cut to 2007, when Hunter and Nelson announced the sale of the MP R otator to Hunter Industries. Leezy was with Hunter when the MP Rotator was acquired. “Nelson did a great job with the product,” Bixby Knolls Leezy says.  “The timing of the acquisition occurred at the time when the industry was embracing high-efficiency nozzles.”

Jeff Kremicki, marketing manager with Hunter Industries, says that the company’s high-efficiency MP Rotator exhibits “higher efficiency than standard spray nozzles. It fights the wind, it’s easy to install and it’s easier to retrofit.”

Indeed, the introduction of the MP Rotator has created a win-win for everyone: Once again, demand for a rotating nozzle grew, and once again, to supply the market, the major brands began to introduce their own version of a rotating nozzle. 90808

“There are more options today for spray head nozzles than ever before because the need to increase irrigtion efficiency has grown substantially,” Baron said. “Up until the MP Rotator, all spray heads would increase the precipitation rate when you recuce the distance of throw.”

Rain Bird introduced its rotating nozzle, and K-Rain introduced its rotary nozzle with fixed patterns of 90, 180, 360 degrees. “The market wants an adjustable rotary nozzle,” says Pat McCurdy, director of marketing at K-Rain. “We are proud to say that we will be introducing our version shortly.”

Toro leveraged its expertise and developed the first gear-driven, rotating nozzle for a spray body. “It’s adjustable, maintains matched precipitation even after arc and radius adjustment,” Baron said. “Compared to other rotating nozzles, our Precision Rotating Nozzles help speed up watering times by 41 percent.”

However, the rotating nozzle category is not without its problems. 90807

The matched precipitation and low-volume output presents a different set of problems. “We heard,” McCurdy continues, “Yeah, it’s a great product, but here’s what we don’t like about it.” Among the areas that need improvement: easier installation, higher uniformity, and a better water window.

What is meant by a water window? That’s when watering restrictions, either voluntary or mandatory, are in place, so the property owner has a limited time to get their landscape irrigated. “We love the uniformity and adjustability of the MP Rotator, but we’re putting the water down too slowly.”

Toro took a different approach to low-precipitation and low-volume Belmont Shores sprinkler heads. How do we get the efficiency of the MP Rotator without the need to double the watering time? Baron says, “Toro hit the market in 2008 with its Precision Series Spray heads. With no moving parts, there is less to go wrong; it is also less expensive to manufacture and therefore made to sell at less than half the cost of a rotating nozzle.”

These spray heads range from 5 to 15 feet in range and offer nine different spray patterns (from drip to micro to rotating sprays). “The real difference and what makes them unique is that engineering took what was standard, 60-yearold spray technology—high flow, high precipitation and not very uniform—and revolutionized the distribution process,” says Jeff Miller, marketing manager for Toro Downey, Ca. Irrigation. “Our patented H2O chip produces oscillating streams that achieve up to 35 percent lower flow rates than standard and adjustable nozzles. Our nozzles will fit any manufacturer’s spray body.”

Toro spray heads also feature the XFLOW. When the nozzles are damaged or cut off by maintenance equipment, the XFLOW shuts off the spray head and keeps that geyser from wasting water and creating a possible hazard or liability for the property owner.

A brave new, wet Lakewood world

As water conservation becomes an increasingly mandatory consideration, advancements in sprinkler technology continue to improve. Rain Bird has built its reputation by responding t o a c h a n g i n g industry. They developed a rotating nozzle, but they’ve also been a longtime producer of VAN (variable arc nozzle) sprinklers. Recently, Rain Bird debuted its High Efficiency Variable Arc Nozzle (the HE-VAN) in select markets.

“The HE-VAN has a head that puts the emphasis not in the precipitation but in the distribution uniformity and a lower scheduling coefficient that provides even coverage and shorter run times than traditional variable or fixed arc nozzles,” says Tracy Tucker, senior product and channel development manager at Rain Bird.

The primary benefits of the HE- VAN include a distribution uniformity greater than 70 percent, and the scheduling coefficient (the measure of how long it takes to get to the driest spots) of less than 1.6.

“In addition,” Tucker says, “it looks like a rotary nozzle and it has a stream that delivers a larger droplet size, which means greater wind resistance. Because it’s a variable nozzle, you can set it from 0 to 360 degrees and it’s available in 12 and 15 feet throw.”Lakewood, Ca.

Tucker explains that the HE- VAN is perfectly suited for today’s business landscape. “There are so many retrofit opportunities today,” she says. “They have a residential application to reduce water; that’s one primary application. We’re seeing that on the commercial side as well, a lot of retroactivity and maintenance work.”
Beyond the HE-VAN, Rain Bird still carries its entire line of MPR (match precipitation rate) sprinklers. “Those nozzles are an industry standard,” Tucker says.

The HE-VAN, she says, will fit competitive spray heads and it has a matched precipitation rate with Rain Bird’s existing MPR lines. 90802

“In addition, our exclusive ExactEdge technology offers a feature that provides tactile feedback,” says Tucker. “When you adjust to their desired arc setting, it allows you to lock the arc into place to get a strong, consistent right edge.”

Now that you’re armed with all this information about sprinkler heads, you’re ready to roll. As you embark on your next retrofit or new installation, you’ve got your piping, your valves, and your smart controller chosen. 90831 All you need to determine is what sprinkler heads to use. As you can see there are now a plethora of excellent products from which to choose.