This can also be caused by a high water demand in your home, or with other watering systems, as well as valves that may be stuck open and allowing water to leak out without creating pressure. Low water pressure can not only be due to leaks in the system. If your water pressure has dropped lately, or you suspect there may be a leak at some part of the circuit, this can reduce or even limit the rotation of a sprinkler head entirely. Low water pressure can be a huge problem for large systems as well. If dirt and debris is a problem, rinsing the rotation gears is all you need.įor calcium and mineral build up, a vinegar or CLR soak can quickly eliminate the issues and have your gears turning smoothly again. Most sprinkler heads will unscrew from the circuit letting you get a closer look at the issue. Calcium deposits are extremely common, and can even be found in water from a softened system.Ĭleaning these gears is relatively simple and straightforward. In closed gear drives, you will rarely have issues with insects or dirt, but can have problems with calcium or mineral build up from hard water. For the exposed gears, dirt, small twigs, insects, and other debris can get in the area blocking proper movement. This gear is usually very well protected from the elements, but in some cases it may be open and exposed. Sprinklers with rotating heads will have a small gear drive in their internal workings. It’s something you can fix yourself, and won’t usually require the assistance of a professional. This is normally due to the sprinkler head being dirty or jammed by a small pebble or twig. A possible solution is to split the zone into two zones.Sprinkler systems are a great way to simplify your yard care, but you may occasionally run into the issue of your sprinkler not rotating. It could be that there isn’t enough water pressure to run If the heads pop up fully when the valve is manually opened then the problem is inside the valve. If there is a bleed screw, open the screw until a small stream of water comes out, but do not remove the screw completely, it is very hard to get back on if you do. (Additional information can be found in your owner’s manual). There should be a lever or small bleed screw on the valve that allows you to bypass the solenoid and open the valve. Try manually opening the electric solenoid valve. If water starts coming out, stop turning it and tighten it again! Faulty Valve Turn the handle counter-clockwise to open it. If your valves have flow control, check that they are completely open. Many electric solenoid valves used to operate the sprinkler zones have a flow control handle/knob/screw on them that allows the valve to be manually closed or opened. Fix this by opening the flow control counterclockwise. There may be a flow control on the zone valve that is partiallyĬlosed. When the problem only affects the heads in one zone only, that means that there’s not enough water pressure for the heads in that zone. Call your pump service company and have them check out your pump. If a sprinkler pump is used in supplying your irrigation water, the water pressure and flow may drop as the pump ages. Install a booster pump to create more water pressure for the system or modify Your system was probably designed forĪ higher water pressure that is not available any longer. Should you discover that your water pressure has permanentlyĭropped, then you have a serious problem. If it has, ask whether it is a temporary or permanent problem. Call your water provider and inquire to see if the water pressure in the neighborhood has recently dropped. Has your water pressure dropped? When new construction occurs nearby, the water pressure is prone to drop due to the water system supplying more water to more homes. This could affect some or all of your zones. A partially closed valve will reduce the water to the sprinklers, causing them to not fully pop up. Valve Not Fully OpenĬheck all of the valves to make sure they are fully open, especially the main system shut-off valve and the valves on your backflow preventer. Sprinkler Heads In Most Or All Zones Won’t Pop Up. This article covers the most likely causes and how to fix them. It could be a faulty sprinkler head, a faulty valve, or a problem with your water pressure. When you have sprinkler heads that don’t pop up, there could be several causes. Maybe none of your heads are popping up, or maybe only one is not working correctly. This is a common issue with sprinkler systems. What To Do When Sprinkler Heads Won’t Pop Up
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