I made these tunnel frames with 32mm Class 10 HDPE
The irrigation is through 32mm Class 6 HDPE,, 20mm LDPE and vibronet misting nozzles with antidrain
Install a rain sensor
A rain sensor detects measurable rainfall and is able to turn off the automatic irrigation valves. You can buy a rain sensor almost anywhere irrigation products are sold. Most will will work any brand of irrigation controller or timer and any brand of valve.
You mount the rain sensor on the side of the house, on a pole or on the gutters in a location where water will fall on it but a sprinkler will not hit it. Then you run 2 or 3 wires from the sensor to the controller. The exact installation instruction vary depending on the brand and model of the rain sensor.
Fix leaking valves. Look for water running onto sidewalks or over curbs after the sprinkler system is turned off. If water flows constantly when the sprinkler system is off (often there will be mold or algae growing on the cement or ground) that indicates that a valve is not fully closing. A valve that doesn't close usually is caused by a small grain of sand stuck inside the valve. Clean, or simply replace the valve.
Installing a sprinkler system for Eucalyptus hedge beds. Sometimes the working temperatures can be extreme.