They have a self-locking ridge on the ell that seals it and locks the flexible tube on. If the sod was removed in one piece, it should be easy to add after you replace a sprinkler head, sitting it on top of the dirt around the irrigation fixture. Most of these preassembled swing risers are very high quality and use special PVC ells with o-ring sealed swivels built into them. A good riser choice can save you time and money over the years. With a triple swing riser your sprinkler is also going to be 10″ away from the sidewalk unless you install a small branch pipe over to the sidewalk from the lateral.
(“Lateral pipe” is the name given to the pipes that go from the zone valve to the sprinkler heads.). Don’t use any other type of oil or soap, they can damage the plastic. Sprinkler heads sit just below or flush with the ground, so a sturdy trowel should be suitable for digging up the head.
Before you ask, no, a 6 inch distance does not cause a dry spot along the edge of the sidewalk.) (I recommend starting with a 12″ to 18″ length of flex pipe and then cutting it shorter as needed to position the sprinkler.) Q: Can I use it to repair an air mattress or inflatable? By using this tutorial you agree to be bound by the conditions and limitations listed on the Terms of Use page. 0. Place the soil in a container so it can easily be replaced but poses no risk of getting knocked into the open water line. The riser in this photo is made by Hunter and features 4 ells for ease of installation and added flexibility. L x 24 in. If you are building your own flexible swing joint risers do not use more than a 18″ length of flexible pipe for your riser! The replacement head needn’t be the same brand as the previous head, but it must be the same type. Cut the broken section out so that you have clean, undamaged pipe on both sides. By the way, 4 to 6 inches is the normal distance a sprinkler should be from a sidewalk. I suggest adding a street ell to one or both ends of your swing riser to make it easier to install. I usually put a threaded high-density poly street ell on one or both ends which makes it much easier to install. Once the new sprinkler head is functioning properly, fill in the hole by shoveling the dirt back into the opening with the trowel, making sure to spread it evenly across the base. If the pipe is curved when you buy it, work with the curve of the pipe.
If the threads are cracked, aggressively worn, or appear misaligned, the riser will need to be replaced. If the riser broke when taking out the sprinkler head, remove it with a riser removal t-tool and then replace with a new riser. The flexible arm swing riser consists of a length of flexible pipe (sometimes referred to as “Funny Pipe ®” which is a trademarked name of the Toro Company) with a insert ell on both ends. Thread-seal tape can be tedious to wrap correctly, while pipe dope is simple to apply, but messy. A typical rigid swing riser is constructed using a 12 inch long SCH 80 PVC nipple for the rigid arm (generally SCH 80 is gray colored) and high density polyethylene street ells (see photo of a street ell above.) If the head is more than 18″ away you should run a branch pipe over to it using the same size and type of pipe as the lateral. to see localavailability, Need Help? If the PVC is part of the drainage system, don't run water into the drains during the repair. Orbit In-Ground Sprinkler System with 1/2 in. I used to install sprinkler systems for my summer jobs, and still do my own repair work. But you still can’t move the sprinkler head from side to side with a triple swing riser. Longer lengths cause a high amount of pressure loss and this can mess up the performance of the sprinkler head.
The street ells you use should be high density polyethylene, which is black in color and has a slightly oily feel. Tie it in a knot if you wish. Not only must the sprinkler head be low enough to avoid damage from mower blades, a uniform head height also ensures the most accurate spray pattern for the lawn. Turn the system on and observe the new head for about a minute, to test for functionality and any leaks around the riser and sprinkler head. Usually, you need to dig out enough dirt so your PVC pipe can bend to accept the coupling during repairs, but I got this idea a while ago from someone who knew a great shortcut that doesn't require exposing more PVC than you need to. Saddlebrook 1-Panel Plank Right-Handed Hollow-Core Smooth Primed Composite Single Prehung Interior Door, Buy Black 36 in. Also check the height of the sprinkler head in comparison to the others on your lawn. The riser type you use is an important choice and deserves some attention. While a nipple is the least expensive riser type, it also has some very distinct disadvantages. Thanks to marketing, most people seem to know what KY is, unlike back when this tip was passed along to me. The sprinkler head sits on a small pipe, called a riser, that connects the head to the water line. Poly pipe has what we call “memory” in the pipe industry- it tries to return to its original shape in a few hours. Drip Irrigation Design Guidelines – Basics of Measurements, Parts, and more. Terms of Use Tamp the loose dirt down flat with your hand, foot, or the back of the trowel. What if you really need to bend the riser pipe? If the turf was damaged during removal, reseed the ground around the sprinkler head and fertilize to aid growth. The preassembled swing risers often have 3 or even 4 ells which makes them much easier to install. A street ell is just an ell that has female threads on one end and male threads on the other (see photo below.) Unscrew the sprinkler head from the riser by twisting counterclockwise. High density polyethylene is typically referred to as “Marlex”. It can be adjusted up or down, angled in any direction, plus it can swing from side to side. Thus the trenching and pipe installation is going to be much easier and faster. If there is a leak or rupture in the line, the poor performance may be with the plumbing service and not the sprinkler head. It provides a good balance between cost, ease, and durability. Or, if the riser was also replaced, check the length of the new riser against the old one for height consistency. For those who install sprinkler systems themselves and make sprinkler system repairs, this thread seal tape from Orbit is one of the best sprinkler tools to have. If you can’t scratch it with your fingernail, it is not Marlex.
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