How to build an in-line sprinkler fertilizer system

Written by heath robert
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How to build an in-line sprinkler fertilizer system
In-line fertiliser systems are an easy way to deliver nutrients to lawns. (Jupiterimages/Photos.com/Getty Images)

Using a sprinkler system to deliver fertiliser directly to plants and grass is one of the easiest ways to ensure that important nutrients get applied evenly. Delivering a steady, uniform amount of fertiliser through the water supply can help grow stronger roots and lush, green lawns. Building your own in-line fertiliser system is relatively easy, and requires only a few tools. In-line fertiliser systems can be used on lawns of any size, and can be added to existing sprinkler lines.

Skill level:
Moderately Easy

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Things you need

  • Automatic fertiliser attachment
  • Fertiliser
  • Wrench

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Instructions

  1. 1

    Locate the sprinkler manifold. This is usually outside and contained in a green and black box.

  2. 2

    Open the sprinkler manifold box using your hand.

  3. 3

    Twist the test caps on each valve within the sprinkler manifold to determine which zone you want the automatic fertiliser to be attached to.

  4. 4

    Turn off the main water valve.

  5. 5

    Use a wrench to remove the supply line from where it attaches to the valve where the in-line fertiliser is to be attached.

  6. 6

    Connect the end of the supply line to the output side of the automatic fertiliser device.

  7. 7

    Screw the intake side of the automatic fertiliser device onto the sprinkler valve.

  8. 8

    Fill the automatic fertiliser with a quality fertiliser that's designed for use in your model.

  9. 9

    Turn on the main water line.

  10. 10

    Run the sprinklers and test for leaks.

Tips and warnings

  • If there is not enough room in the sprinkler manifold to accommodate the automatic fertiliser, you may have to dig out the surrounding area and expand the manifold.
  • Only use fertiliser approved for use in an automatic fertiliser.

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