Fixing sprinkler heads
1) Make sure you replace like for like. Examine the other heads and try to use the same model, size, and brand as the others. Different sprinkler heads even the same type and size but a different brand often have varying flow rates and you may find your water pressure in that zone affected as well as the area not getting the right amount of water as before. An easy way is to remove the broken heads and take them into your local Irrigation store and ask for like. Sprinkler heads come in Male and Female threads so doing this will ensure you get the right fit. Take photos very close up of all the other heads so that the reticulation supplier can give the right advice and make sure that your irrigation is consistent and not a ‘mish mash’ of heads.
2) This is also your chance to improve the system so measure the distance between the broken or blocked heads and the nearest other sprinklers. If say they are spaced at 12 feet spacing but the broken head is a 10-foot head then you can improve the perth reticulation system by adding in a 12-foot spray nozzle.
3) Flush, flush, and Flush. Do not stuff this up or you will regret it. Make sure every sprinkler downstream of the broken one is also flushed. Take off every head downstream and flush as well. We have a detailed blog with examples and images of the tools needed here.