Keeping your lawn green during a scorching North Texas summer takes plenty of water and a reliable irrigation system. So, when you turn on your sprinklers and see a massive geyser shooting into the sky instead of a gentle spray across your grass, you know you have a problem. Nine times out of ten, that mini-Old Faithful is caused by a broken sprinkler riser.
The riser is the small piece of pipe that connects the underground water supply line to the sprinkler head. Fortunately, replacing a broken riser is a straightforward DIY project you can knock out in an afternoon.
In this guide, we will walk through exactly how to replace a sprinkler riser right here in Azle. We will cover the tools you need, how to extract a stubbornly snapped pipe, and how our local soil conditions play a role in your yard’s plumbing.
Before we start digging, it helps to understand why your sprinkler riser broke in the first place. Aside from an accidental run-in with a lawnmower or an errant car tire near the driveway, the ground itself is often the culprit.
Here in Azle and the surrounding North Texas areas, we deal with heavy clay soil. Clay soil acts like a giant sponge. When we get heavy spring rains, the clay absorbs the moisture and expands. When the brutal August heat arrives and bakes the ground dry, the soil shrinks and cracks.
This constant expanding and contracting literally shifts the ground beneath your feet. As the earth moves, it puts immense physical pressure on your underground PVC sprinkler lines and the rigid plastic risers connected to them. Over time, this stress causes the plastic to fatigue and snap. Upgrading to flexible risers (sometimes called “swing joints”) can help absorb this ground movement and prevent future breaks, which is a smart move for any local homeowner.
To fix your sprinkler system efficiently, gather your tools before you get your hands dirty. Head out to your garage or take a quick trip to the local hardware store to pick up the following items:
Working on your irrigation system is generally safe, but keep a few basic precautions in mind:
Ready to fix that leak? Follow these steps to get your sprinkler system back in working order.
Never try to work on a sprinkler system while the system is pressurized. Locate your irrigation system’s main shut-off valve—usually located in a green plastic box in the ground near your water meter or attached to the side of your house. Turn the valve to the “off” position. If your irrigation controller is scheduled to run, turn the dial to “system off” so it does not accidentally kick on while you are working.
Find the sprinkler head that is causing the problem. Grab your small shovel or hand trowel and carefully dig a circle around the head. You want to dig down deep enough to expose the underground fitting where the riser connects to the main water line. Make the hole wide enough to give your hands and tools plenty of room to work. Scoop out any standing water or muddy soup at the bottom of the hole.
If you are lucky, the riser cracked higher up, leaving enough plastic for you to grab with your pliers and unscrew counter-clockwise.
If you are dealing with a typical break, the riser probably snapped completely flush with the underground fitting. Do not panic and do not try to chisel it out, as you will damage the permanent fitting. Instead, grab your riser extractor tool.
Insert the metal teeth of the extractor tool directly into the hole of the broken plastic piece stuck in the fitting. Tap it gently with the palm of your hand or a wrench so it bites into the soft plastic. Once it has a firm grip, turn the extractor handle counter-clockwise. The broken threads will unscrew easily, leaving the underground fitting perfectly intact.
Take your new plastic riser and wrap a few layers of Teflon tape around the threads on both ends. Wrap the tape in the same direction you will turn the pipe (clockwise) so it does not unravel when you screw it in.
Thread the bottom end of the new riser into the underground fitting by hand. Turn it clockwise until it feels snug. You can give it a tiny, gentle twist with your pliers to secure it, but be extremely careful. Overtightening plastic fittings will cause them to split, creating a much bigger plumbing nightmare. Hand-tight is usually sufficient.
Screw your existing sprinkler head (or a new one, if the old one was damaged) onto the top of your newly installed riser.
Before you bury your hard work, test the system. Turn the main water supply back on and manually activate that specific sprinkler zone from your control panel. Watch the base of the riser closely. If you see water bubbling up around the threads, turn the system off and tighten the connection slightly. If the head pops up and sprays smoothly without leaking below, you successfully fixed the problem.
Fill the hole back in with dirt, packing the heavy Azle soil down firmly around the sprinkler head to keep it stable.
Replacing a standard sprinkler riser is a great DIY task. However, some irrigation issues require an expert touch. You should reach out to a licensed North Texas irrigation specialist if:
Taking care of your sprinklers ensures your lawn stays healthy, even through the toughest Texas droughts. Keep a few spare risers and an extractor tool in your garage, and you will be ready to tackle the next leak the moment it happens.
