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Reviewed By Last Updated on Jun 28th, 2021

A properly designed and installed sprinkler system does not need too much maintenance. However, as time passes, you may find that you have to perform seasonal adjustments and updates on it. Sometimes, the sprinkler heads get turned due to foot traffic or you might decide to add new flower beds.

In any case, it becomes necessary to adjust the sprinkler heads so that you can maximize your lawn watering system. In this guide, we will discuss how to adjust lawn sprinkler heads in order to optimize your garden irrigation system. We will also cover some tips how to adjust rotating sprinkler heads, automatic sprinkler heads, and in-ground sprinkler systems as well. Let us take a look at lawn sprinkler adjustments.

How to Adjust Rotating Sprinkler Heads

The best way to make sprinkler head adjustment is while the system is running. This way, you can understand exactly which sprinklers need adjustment.

Carry Out Preliminary Checks

At the beginning of each growing season, turn on the system and check that easy sprinkler head is providing the necessary coverage. Sometimes, foot traffic, lawn mowers, or snow ploughs may have disturbed the sprinkler’s alignment, causing it to spray sidewalks and other undesired areas. This can leave your garden un-watered or unevenly watered.

Reposition the spray heads so that they are flush with the surrounding ground. If needed trim away grass blades and other foliage from the sprinkler’s nozzle. Of all the head types, fan sprays are easiest to adjust. Simply change the nozzle on the pop-up sprinkler.

For those on pop-up sprinklers, pull up the riser and hold it in place. Unscrew the old nozzle and replace it with a new one. For shrub heads where the nozzle is stationary, all you have to do is unscrew the nozzle. Sometimes, it may be necessary to change the filter when switching nozzles.

how to adjust inground sprinkler heads

Keep the Same Precipitation Rate Throughout Zones

This is important when you adjust the sprinkling pattern. Precipitation rate is the rate at which a sprinkler delivers water to the ground. It is important to use matched precipitation rate sprinklers in all your zones to ensure that all the patterns are watering at the same rate as any other.

Also Read: Best Garden Sprayers – to Get the Best Quality

Adjust the Overlap Between Heads

Sometimes, there may be too much or too little overlap between the sprinkler heads. To adjust this, move the nozzle to redirect the spray and then turn the spray-adjustment screw on the top of the nozzle. If you have a ratcheting riser, turn the riser.

These days, most sprinkler systems come with rotary heads having rings at the bases of the spray heads. These adjust the pattern of spraying. There is also a diffuser screw that lets you adjust the distance of throw. In case of micro sprinklers, simply twist the head to change its direction.

Watch Out for Misting and Fogging

Sometimes, spray heads produce a misting or fogging action rather than the larger drops necessary for watering. This indicates a ‘too-strong’ water flow. Adjust the water flow at the zone control valve. In case of a manual system, turn the zone shut-off clockwise.

Do this until you get larger droplets. Sometimes, there may be an automatic valve with a special knob for adjustment called a flow control. This knob is also useful for controlling misting and fogging.

Ensure That Your Sprinkler System is Adapting to Changing Needs

If you make changes or additions to your garden each season then you may also have to update and adjust your sprinkler system. Adapting to changing yard needs can be as simple as adjusting the sprinkler’s spraying patterns or as involved as adding an entire new sprinkler head zone to the existing system. It helps if you have left some space in your manifold; this can make connections easier.

Modifications to Above Ground System

Sometimes, you may add new beds or radically later the use of a part of the yard. In this case, major modifications may be necessary. It helps if you have left room for expansion in each drip zone. Simply add a line and punch in emitters and micro-sprinklers with units of higher or lower GPH (gallons per hour) rating.

Be sure to re-calculate the zone’s capacity before adding any component to avoid overloading it. You might even have to remove lines and emitters. In such cases, install new barbed fittings and hole plugs as needed. Under-ground micro-irrigation installations might need digging but the connections are the same.

Adding to Sprinkler Systems

This is not a complicated process as long as you have left space in each manifold and zone. This allows for future expansion. Check the water pressure before adding an extra sprinkler head or lateral line to a zone.

Dig carefully when making trenches for the new additions so as to not break any pipes and fixtures that are already in place. It helps if you can mark these new additions on your plan for future changes.

Also Read: Best Sprinkler Controllers – Reviews & Top Buying Guide

how to adjust sprinkler head direction

Re-arrange PVC Plumbing Carefully

PVC connections cannot be taken apart and reused. So, be careful before rearranging PVC plumbing and make sure you have everything you need. Polyethylene plumbing is better because they can be reused.

Change Nozzles if Needed

If you are planning to reuse the sprinklers and risers, make sure the nozzles do not need replacement. Sometimes, changing the nozzle may be the only adjustment needed. A full-circle nozzle can be replaced with a part circle or even a strip nozzle in a matter of seconds.

Place Sprinklers on Tall Risers

If you are converting lawns to shrubs or flowerbeds, the system change may be as simple as placing the sprinklers on tall risers. Just make sure that the sprinklers are compatible with others in that zone.

Winterize Your System

To cope with sustained freezing temperatures, you may have to drain and dry your system. This is essential to prevent damage to the system. You can use a drain valve for the purpose. Try to fit in at least one drain valve per zone. In case of poorly drained soils, you may need to dig a dry well below the drain valve to ensure no water collects and freezes there.

To Winterize Your System:

  • Shut off irrigation supply.
  • Open all manual drain valves downward from the zone valves to allow the lines to drain.
  • Leave valves open for a few days to be sure all water has escaped then be sure to close them again.
  • If you have automatic drains, simply close the main water supply valve. The lines from the automatic zone valves will drain themselves.
  • Check if the drains are working; remove a sprinkler from the riser and check there is no water in the pipe.

Spring Startup Adjustments

Spring Startup Adjustments

Neglecting to properly startup a sprinkler system in spring will cause damage to your irrigation system and cost a lot of money on the repairs. Thankfully, a few tips and precautions can help prevent many potential problems.

The number one threat to a sprinkler system in the beginning of spring is an issue called water hammer. This occurs when a pressure spike occurs due to the rushing of water in an empty pipe. This spike is enough to burst fittings and even blow sprinklers out of the ground.

  • To avoid this, use a shovel and dig around the sprinkler to ensure there is no frost accumulation.
  • Filling your pipes when the ground is still frozen can cause damage to the pipes. If your system isn’t equipped with automatic drain, you need to remove the nozzle or sprinkler head located at the highest point of each zone and start filling the system very slowly.
  • Slowly open the shutoff valve and make a quarter turn.
  • Take your time-let the water travel slowly along the entire length of the main line.
  • Next, fill each zone by manually opening the zone valve. When the water pouring out of the open riser runs free of air bubbles, close off the zone valve. It could take about 30 minutes to fill each zone. Once the zone is filled, adjust the sprinkler heads. Repeat the process for each zone.
  • Once you have filled the entire irrigation system, run each zone for two minutes. This will do three things: help you test your automatic timer, flush out any remaining air, and also help you ensure that all heads are spraying properly.

Final Adjustments

If you have an automatic controller, make sure you replace the batteries. Also, ensure that your timer programs are still accurate.

Also Read: How to Make a Rock Garden – Learn More About It

Conclusion

With a properly installed and regularly adjusted sprinkler system, little can go awry. Malfunctions are an exception rather than the rule in such cases. And even if things do go wrong, simple adjustments can help. Most malfunctions are also quickly noticeable and simple adjustments can help overcome them.

It is a good idea to keep spare parts such as PVC pipes and/or poly pipes, primer, and some cement on hand. If something more involved occurs such as leaks or non functional zones, be sure to contact an experienced technician to help you out.

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  31. Sarahgic says

    Regardless if you believe in God or not, this message is a “must-read”!!

    Throughout history, we can see how we have been carefully conditioned coming to this point where we are on the verge of a cashless society. Did you know that Jesus foretold of this event almost 2,000 years ago?

    In Revelation 13:16-18, we will read,

    “He (the false prophet who deceives many by his miracles–Revelation 19:20) causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads, and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.

    Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: His number is 666.”

    Referring to the last generation, this could only be speaking of a cashless society. Why’s that? Revelation 13:17 tells us that we cannot buy or sell unless we receive the mark of the beast. If physical money was still in use, we could buy or sell with one another without receiving the mark. This would contradict scripture that states we need the mark to buy or sell!

    These verses could not be referring to something purely spiritual as scripture references two physical locations (our right hand or forehead) stating the mark will be on one “OR” the other. If this mark was purely spiritual, it would indicate both places, or one–not one OR the other!

    This is where it really starts to come together. It is shocking how accurate the Bible is concerning the implantable RFID microchip. Here are notes from a man named Carl Sanders who worked with a team of engineers to help develop this RFID chip:

    “Carl Sanders sat in seventeen New World Order meetings with heads-of-state officials such as Henry Kissinger and Bob Gates of the C.I.A. to discuss plans on how to bring about this one-world system. The government commissioned Carl Sanders to design a microchip for identifying and controlling the peoples of the world—a microchip that could be inserted under the skin with a hypodermic needle (a quick, convenient method that would be gradually accepted by society).

    Carl Sanders, with a team of engineers behind him, with U.S. grant monies supplied by tax dollars, took on this project and designed a microchip that is powered by a lithium battery, rechargeable through the temperature changes in our skin. Without the knowledge of the Bible (Brother Sanders was not a Christian at the time), these engineers spent one-and-a-half-million dollars doing research on the best and most convenient place to have the microchip inserted.

    Guess what? These researchers found that the forehead and the back of the hand (the two places the Bible says the mark will go) are not just the most convenient places, but are also the only viable places for rapid, consistent temperature changes in the skin to recharge the lithium battery. The microchip is approximately seven millimeters in length, .75 millimeters in diameter, about the size of a grain of rice. It is capable of storing pages upon pages of information about you. All your general history, work history, criminal record, health history, and financial data can be stored on this chip.

    Brother Sanders believes that this microchip, which he regretfully helped design, is the “mark” spoken about in Revelation 13:16–18. The original Greek word for “mark” is “charagma,” which means a “scratch or etching.” It is also interesting to note that the number 666 is actually a word in the original Greek. The word is “chi xi stigma,” with the last part, “stigma,” also meaning “to stick or prick.” Carl believes this is referring to a hypodermic needle when they poke into the skin to inject the microchip.”

    Mr. Sanders asked a doctor what would happen if the lithium contained within the RFID microchip leaked into the body. The doctor replied by saying a terrible sore would appear in that location. This is what the book of Revelation says:

    “And the first (angel) went, and poured out his vial on the earth; and there fell a noisome and grievous sore on the men which had the mark of the beast, and on them which worshipped his image” (Revelation 16:2).

    You can read more about it here–and to also understand the mystery behind the number 666: [url=https://2ruth.org]HTTPS://2RUTH.ORG[/url]

    The third angel’s warning in Revelation 14:9-11 states,

    “Then a third angel followed them, saying with a loud voice, ‘If anyone worships the beast and his image, and receives his mark on his forehead or on his hand, he himself shall also drink of the wine of the wrath of God, which is poured out full strength into the cup of His indignation. He shall be tormented with fire and brimstone in the presence of the holy angels and in the presence of the Lamb. And the smoke of their torment ascends forever and ever; and they have no rest day or night, who worship the beast and his image, and whoever receives the mark of his name.'”

    Great hope is in our midst, and is coming in a mighty way–the greatest revival for Jesus in the history of the world where we will see the most souls come to Him of all tribes, tongues, nations, and peoples (Rev. 7:9-10); for we have this promise in God’s Word in the midst of these dark times:

    “Then I saw an angel coming down from heaven, having the key to the bottomless pit and a great chain in his hand. He laid hold of the dragon, that serpent of old, who is the Devil and Satan, and bound him for a thousand years (not literal–rather a spiritual label for time spent in eternity); and he cast him into the bottomless pit, and shut him up, and set a seal on him, so that he should deceive the nations no more till the thousand years were finished. But after these things he must be released for a little while (when the Antichrist and false prophet will rise up and God will test the world).” (Revelation 20:1-3)

    “The coming of the lawless one (the Antichrist) is according to the working of Satan, with all power, signs, and lying wonders, and with all unrighteous deception among those who perish, because they did not receive the love of the truth, that they might be saved. And for this reason God will send them strong delusion, that they should believe the lie, that they all may be condemned who did not believe the truth but had pleasure in unrighteousness.” (2 Thessalonians 2:9-12)”

    Who is Barack Obama, and why is he still around?

    So what’s in the name? The meaning of someone’s name can say a lot about a person. God throughout history has given names to people that have a specific meaning tied to their lives. How about the name Barack Obama? Let us take a look at what may be hiding beneath the surface.

    Jesus says in Luke 10:18, “…I saw Satan fall like lightning from heaven.”

    The Hebrew Strongs word (H1299) for “lightning”: “bârâq” (baw-rawk)

    In Isaiah chapter 14, verse 14, we read about Lucifer (Satan) saying in his heart:

    “I will ascend above the heights of the clouds, I will be like the Most High.”

    In the verses in Isaiah that refer directly to Lucifer, several times it mentions him falling from the heights or the heavens. The Hebrew word for the heights or heavens used here is Hebrew Strongs 1116: “bamah”–Pronounced (bam-maw’)

    In Hebrew, the letter “Waw” or “Vav” is often transliterated as a “U” or “O,” and it is primarily used as a conjunction to join concepts together. So to join in Hebrew poetry the concept of lightning (Baraq) and a high place like heaven or the heights of heaven (Bam-Maw), the letter “U” or “O” would be used. So, Baraq “O” Bam-Maw or Baraq “U” Bam-Maw in Hebrew poetry similar to the style written in Isaiah, would translate literally to “Lightning from the heights.” The word “Satan” in Hebrew is a direct translation, therefore “Satan.”

    So when Jesus told His disciples in Luke 10:18 that He saw Satan fall like lightning from heaven, if this were to be spoken by a Jewish Rabbi today influenced by the poetry in the book of Isaiah, he would say these words in Hebrew–the words of Jesus in Luke 10:18 as, and I saw Satan as Baraq O Bam-Maw.

    The names of both of Obama’s daughters are Malia and Natasha. If we were to write those names backward (the devil does things in reverse) it would be “ailam ahsatan”. If we remove the letters that spell “Alah” (Allah being the false god of Islam), we would get “I am Satan”. Chance? I do not believe so!

    Obama’s campaign logo when he ran as President in 2008 was a sun over the horizon in the west, with the landscape as the flag of the United States. In Islam, they have their own messiah that they are awaiting called the 12th Imam, or the Mahdi (the Antichrist of the Bible), and one prophecy concerning this man’s appearance is the sun rising in the west.

    “Then I saw another angel flying in the midst of heaven, having the everlasting gospel to preach to those who dwell on the earth—to every nation, tribe, tongue, and people— saying with a loud voice, ‘Fear God and give glory to Him, for the hour of His judgment has come; and worship Him who made heaven and earth, the sea and springs of water.'” (Revelation 14:6-7)

    Why have the words of Jesus in His Gospel accounts regarding His death, burial, and resurrection, been translated into over 3,000 languages, and nothing comes close (the Quran about 110 languages)? Because the same Spirit of God (YHVH) who created all people likewise transcends all people; therefore the power of His Word is not limited by people; while all other religions are man-made, therefore they tend to primarily stay within their own culture. The same God who speaks to all people through His creation of the heavens and earth that draws all people around the world likewise has sent His Word to the ends of the earth so that we may come to personally know Him to be saved in spirit and in truth through His Son Jesus Christ.

    Jesus stands alone among the other religions that say to rightly weigh the scales of good and evil and to make sure you have done more good than bad in this life. Is this how we conduct ourselves justly in a court of law? Bearing the image of God, is this how we project this image into reality?

    Our good works cannot save us. If we step before a judge, being guilty of a crime, the judge will not judge us by the good we have done, but rather by the crimes we have committed. If we as fallen humanity, created in God’s image, pose this type of justice, how much more a perfect, righteous, and Holy God?

    God has brought down His moral laws through the 10 commandments given to Moses at Mt. Siani. These laws were not given so we may be justified, but rather that we may see the need for a savior. They are the mirror of God’s character of what He has written in our hearts, with our conscious bearing witness that we know that it is wrong to steal, lie, dishonor our parents, murder, and so forth.

    We can try and follow the moral laws of the 10 commandments, but we will never catch up to them to be justified before a Holy God. That same word of the law given to Moses became flesh about 2,000 years ago in the body of Jesus Christ. He came to be our justification by fulfilling the law, living a sinless perfect life that only God could fulfill.

    The gap between us and the law can never be reconciled by our own merit, but the arm of Jesus is stretched out by the grace and mercy of God. And if we are to grab on, through faith in Him, He will pull us up being the one to justify us. As in the court of law, if someone steps in and pays our fine, even though we are guilty, the judge can do what is legal and just and let us go free. That is what Jesus did almost 2,000 years ago on the cross. It was a legal transaction being fulfilled in the spiritual realm by the shedding of His blood with His last word’s on the cross crying out, “It is finished!” (John 19:30).

    For God takes no pleasure in the death of the wicked (Ezekiel 18:23). This is why in Isaiah chapter 53, where it speaks of the coming Messiah and His soul being a sacrifice for our sins, why it says it pleased God to crush His only begotten Son.

    This is because the wrath that we deserve was justified by being poured out upon His Son. If that wrath was poured out on us, we would all perish to hell forever. God created a way of escape by pouring it out on His Son whose soul could not be left in Hades but was raised and seated at the right hand of God in power.

    So now when we put on the Lord Jesus Christ (Romans 13:14), where God no longer sees the person who deserves His wrath, but rather the glorious image of His perfect Son dwelling in us, justifying us as if we received the wrath we deserve, making a way of escape from the curse of death; now being conformed into the image of the heavenly man walking in a new nature, and no longer in the image of the fallen man Adam.

    Now what we must do is repent and put our trust and faith in the savior, confessing and forsaking our sins, and to receive His Holy Spirit that we may be born again (for Jesus says we must be born again to see and enter the Kingdom of God in John chapter 3). This is not just head knowledge of believing in Jesus, but rather receiving His words, taking them to heart, so that we may truly be transformed into the image of God. Where we no longer live to practice sin, but rather turn from our sins and practice righteousness through faith in Him in obedience to His Word by reading the Bible.

    Our works cannot save us, but they can condemn us; it is not that we earn our way into everlasting life, but that we obey our Lord Jesus Christ:

    Jesus says,

    “Not everyone who says to Me, ‘Lord, Lord,’ shall enter the kingdom of heaven, but he who does the will of My Father in heaven. Many will say to Me in that day, ‘Lord, Lord, have we not prophesied in Your name, cast out demons in Your name, and done many wonders in Your name?’ And then I will declare to them, ‘I never knew you; depart from Me, you who practice lawlessness!’ (Matthew 7:21-23)

    “And having been perfected, He became the author of eternal salvation to all who obey Him.” (Hebrews 5:9)

    “Now I saw a new heaven and a new earth, for the first heaven and the first earth had passed away. Also there was no more sea. Then I, John, saw the holy city, New Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband. And I heard a loud voice from heaven saying, ‘Behold, the tabernacle of God is with men, and He will dwell with them, and they shall be His people. God Himself will be with them and be their God. And God will wipe away every tear from their eyes; there shall be no more death, nor sorrow, nor crying. There shall be no more pain, for the former things have passed away.’

    Then He who sat on the throne said, ‘Behold, I make all things new.’ And He said to me, ‘Write, for these words are true and faithful.’

    And He said to me, ‘It is done! I am the Alpha and the Omega, the Beginning and the End. I will give of the fountain of the water of life freely to him who thirsts. He who overcomes shall inherit all things, and I will be his God and he shall be My son. But the cowardly, unbelieving, abominable, murderers, sexually immoral, sorcerers, idolaters, and all liars shall have their part in the lake which burns with fire and brimstone, which is the second death.'” (Revelation 21:1-8)

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