The evolution of an efficient and eco-friendly rotary irrigation sprinkler just got an upgrade! By incorporating a mechanical bearing into the design, we improve the rotation mechanism for smoother operation and better durability. This modification allows for a more reliable and effective irrigation system for your garden. Follow this updated step-by-step guide to create your own.

Updated material list:

  • 2 plastic bottles (0.5 liter size)
  • PVC T-connector (diameter slightly smaller than the opening of your plastic bottles)
  • 1 larger PVC pipe (to accommodate the mechanical bearing)
  • 1 smaller PVC pipe (for the bearing)
  • Mechanical bearing (compatible with the diameter of the smaller PVC pipe)
  • PVC adhesive
  • Waterproof sealant or rubber seals
  • Drill or sharp tool for drilling holes

Revised steps:

1. Preparing the PVC T-connector:

  • Heat the PVC T-connector slightly to make it flexible. Carefully insert the plastic bottles into the ends, making sure they are snug. Avoid overheating to maintain the integrity of the PVC.

2. Modification of plastic bottles:

  • Drill or punch a hole in the center of each bottle that faces upwards to allow water to spray out.
  • Create another hole at the bottom of each bottle for the rotating mechanism. Make sure one bottle has the hole on one side and the other bottle on the opposite side to ensure smooth rotation.

3. Structure of the rotating mechanism with mechanical bearing:

  • Choose a larger PVC pipe that can accommodate the mechanical bearing well. Glue the bearing into one end of this pipe using PVC glue. Make sure it is centered to ensure smooth rotation.
  • Slide the smaller PVC pipe through the mechanical bearing. This pipe acts as a pivot and should be able to move freely within the bearing.
  • Seal both ends around the smaller pipe where it exits the larger pipe. Use waterproof sealants or rubber gaskets to prevent water leakage while still allowing the pipe to rotate.

4. Montage:

  • Connect your garden hose to the bottom end of the smaller PVC pipe. This structure will serve as a vertical support and water supply line for your sprinkler.
  • Attach the PVC tee with the bottles to the top end of the smaller PVC pipe. Make sure the assembly is secure and balanced to ensure smooth rotation.
  • The larger PVC pipe with the bearing should be fixed in place while the smaller pipe with the bottles and T-connector attached rotates inside it.

Fine-tuning:

Turn on the water and adjust the flow to test the rotation of the sprinkler. The water pressure from the holes in the bottles causes the assembly to rotate, ensuring even water distribution throughout your garden.

Tips for success:

  • Choose a bearing that can withstand water exposure to ensure long life.
  • Test the rotation before sealing everything to make adjustments if necessary.
  • Painting or treating the PVC parts can protect them from the elements and extend the life of your sprinkler.

Combining simplicity with efficiency, this improved rotary irrigation sprinkler design uses a mechanical bearing for smoother operation. It’s a fantastic weekend project that produces a handy garden irrigation tool and showcases your DIY skills and commitment to sustainability.

Inspired by this? Share the article with your friends!