This is a sprinkler in my lawn.
The water is not spraying out of the sprinkler like it should, nor coming properly out of any other sprinkler. So much water is flowing out from the sides of this sprinkler that there is not enough pressure in the reticulation system.
Watch the water flow elegantly across the footpath and down the street.
To get a closer look, I unscrew the sprinkler
Remove the guard
Remove the PVC pipe around the sprinkler hole
Can't see a problem. So let's dig a bigger hole.
I can't get a spade to go through grass, even with my entire weight on the spade.
The trick is to use the corner of the blade (I discover eventually).
After hacking a 50 cm x 50 cm square cut of grass
I I lever around it with the spade
and lift it out
The soil is stuck together with roots, I found this narrow pointy trowel useful to get the soil apart. Fiskars trowel $1.93 at Bunnings.
Digging around the pipe reveals the problem. The pipe is completely snapped.
I cut the broken section of pipe out with a hacksaw. A full size hacksaw is too big to get into a hole like this. I used this Trojan Junior Hacksaw ($4.70 at Bunnings)
There is a gap of about 35 cm between the two ends of pipe in the ground.
First I reinstall a new T fitting. This is a 25mm x 0.5 inch fitting ($3.45). The fitting that you need to use depends on the size of your pipe and sprinklers. After you cut the old one of the the ground you can take it to the shop when you buy the new one.
To glue the fitting in, use green cement. Here I use Bostik Plumbers Mate PVC-U Pipe Cement ($5.97 at Bunnings).
This is a telescopic coupler ($10.55 at Bunnings), it allows pipes to be repaired without taking them out of the ground.
After applying cement to both surfaces, slide the inside shaft of the coupler into place.Leave to dry overnight.
Screw sprinkler back in
Pack down soil underneath the pipe. Replace grass block.
Fill in gap around grass with soil
Fixed. Now there is enough pressure back in the system to discover the next broken sprinkler.
Remember, next time buy an apartment.