Lateral Repair with Elbow and Sprinkler

Picture of a broken lateral line

This was a sprinkler that was installed incorrectly. When it broke, it could only be fixed by making a lateral repair. This was because the installer hard piped / glued the fitting for the sprinkler head. I always suggest using swing joints, so things like this don't happen.

Picture of a broken lateral line

Start by exposing the lateral.

cutting out lateral line

Cut out the broken section, if the break is too close to the elbow for a coupling repair, you will need to remove the elbow.

lateral line and elbow cut out

This example will cover the removal of the elbow. A coupling repair would be a standard lateral repair, but you would have the added advantage of having more flexibility in the lateral line when assembling the repair.

using the old pipe as a guide to making cuts

If possible, use the removed section to give you a guide for cutting your replacement lateral piping.

assembling repair

Start building the repair toward the elbow. Use couplings or a tee with threads for attaching a swing joint to supply a sprinkler.

assembling repair

Assembly Example

assembling repair

Assembly Example

gluing elbow

Gluing elbow example

gluing elbow

When gluing the elbow, you will need to prep both sides at the same time. Bend the longest lateral back far enough to allow you to push the elbow on, then force the elbow onto the short side. Once the elbow is in its final assembled position, hold it in place long enough for the glue to set firmly.

testing the repair.  Running the valve to look for leaks.

If you are installing / replacing a sprinkler, assemble the swing joint and backfill. Test the lateral after the appropriate drying time.

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