Adding Sprinkler Heads: A Step-by-Step Guide

Pop-up sprinkler assembly with swing joint

Pop-up with Swing Joint Components

  1. Pop-up Sprinkler Head
  2. 1/2" Marlex coupled with 1/2" Funny Elbow
  3. Funny Pipe
  4. 3/4" Slip x 1/2" Thread PVC Tee coupled with 1/2" Funny Elbow
  5. 3/4" PVC pipe Schedule 40
  6. Optional: 3/4" Slip x 1/2" Thread PVC Elbow
  7. Optional: 1/2" Auto Drain (typically one installed at the lowest point of each zone)
Rotor sprinkler assembly with swing joint

Rotor with Swing Joint Components

  1. Rotor Sprinkler Head
  2. 3/4" Marlex coupled with 3/4" Funny Elbow
  3. Funny Pipe
  4. 3/4" Slip x 1/2" Thread PVC Tee coupled with 3/4" Funny Elbow
  5. 3/4" PVC pipe Schedule 40
  6. Optional: 3/4" Slip x 1/2" Thread PVC Elbow
  7. Optional: 1/2" Auto Drain (typically one installed at the lowest point of each zone)
Fully assembled swing joint for sprinkler head

Assembled Swing Joint

This image demonstrates a fully assembled swing joint. Adding sprinkler heads is generally straightforward, provided the zone has sufficient supply to support the new sprinkler head.

Cutting into PVC line to add a new sprinkler head

Step 1: Locate and Cut the Line

First, locate the existing line. In this example, I found a capped end close to where a new head is needed. Cut the line and allow the line to drain completely before proceeding with any gluing.

Applying glue to PVC fitting for new sprinkler head

Step 2: Gluing the Fitting

For lateral lines, ypu can use a glue that contains primer. Note: When working on pressurized lines (such as main lines), always apply primer before gluing for a secure connection.

Assembling a sprinkler head swing joint

Step 3: Assembling the Swing Joint

These images illustrate the assembly of a swing joint. The Swing Pipe / Funny Pipe can be any length, but remember not to exceed 3 GPM for distances over 3 feet to maintain optimal sprinkler performance.

Positioning new sprinkler head level with the ground surface

Step 4: Positioning the Sprinkler Head

While backfilling, hold the sprinkler head in place to ensure it remains level with the surface. It's crucial to keep the head straight and vertical, as proper alignment directly affects its performance.

Backfilling around newly installed sprinkler head

Step 5: Backfilling

Carefully backfill the area around the new sprinkler head. This prepares the ground for sod replacement and helps stabilize the sprinkler assembly.

Replacing sod around new sprinkler head installation

Step 6: Replacing the Sod

When replacing the sod, it may initially sit high and uneven. Carefully press it back into a level position. You may need to tamp or gently stomp the area to achieve a flat, even surface.

Testing newly installed rotor sprinkler head

Step 7: Testing

After allowing sufficient time for the glue to dry, test the sprinkler station. Ensure it functions properly and verify that the new sprinkler head is straight and operates correctly.