A damaged sprinkler line that sits under concrete should be repaired right away because a leaky supply line can lead to severe problems with the sprinkler system.
Fix sprinkler pipe under sidewalk.
First find the leak by looking for escaping water or sprinkler heads with little to no flow.
Move the pipe and hose back and forth in the trench using a sawing motion.
Now using a pvc pipe cutter cut the piece of schedule 40 pvc pipe about two to four feet longer than the width of your sidewalk or driveway.
You will want to have at least 6 inches 15 2 cm on each side of the break clear and enough room for you fist underneath the pipe.
If your pipe has sprung a leak you must remove the damaged section of pipe and replace it was a new one.
As you remove mud and rocks tap the end of the pipe with a sledge hammer to drive the pipe.
Then dig up and expose the damaged pipe so you can remove it.
First dig your trenches on either side of the walk to the depth of the rest of your sprinkler system usually about 6 12 inches minimum.
The concentrated blast of water coming.
It is no longer a destructive job to repair or replace pipes underneath a residential driveway.
In the past it was required to bring out the jackhammers to break through your driveway in order to get access to a pipe located underneath your driveway.
Method 2 pvc pipe water this method uses water pressure to push the pipe through the dirt under the sidewalk.
Repeat the process until the pipe clears the sidewalk.
Protect the end of the pipe with a block of wood to prevent cracking it with the sledge hammer.
Sprinkler lines under concrete may need to be removed for repair.
Dig up the dirt above the bad pipe with a shovel you will probably also need a hand trowel to dig up the dirt under the pipe.
Grab a sledgehammer or mallet and a block of wood to drive the chiseled end of pvc pipe cut through the soil.
Slide the pressure washing wand into the pipe and start to tap the pipe under the sidewalk as the water cuts the channel.
Grasp the pipe and the garden hose at the end farthest away from the sidewalk.
Use a slip coupling to replace the damaged section of pipe fill in the dirt around it and you re done.
Under driveway pipe repair without digging excavation.
This article explains how to dig and run pipe under an obstacle such as a driveway or sidewalk.
