1″ Bell Siphon Kit (5 Tier)


Bell siphons to build an automated, cascading, flood and drain watering system for your indoor vertical microgreen farm.

Works with large and small grow trays
Works at 1″ water height
Can be adjusted to start at up to 2″ water height
No Timer Required
Works with multi-level tray setups
No need for overflow valve 
Quick flood and drain

Kit Includes

  • Bell siphon with inlet (1)
  • Bell siphons without inlet (4)
  • 1/2″ PVC coupling (5)
  • O-ring (5)
  • 1/2 90 degree elbow (5)


Indoor and Outdoor
Installation Drill Hole
1 Inch
2 1/2” height , 2″ width
Max Drain Rate
400 GPH
Min Input Flow Rate
200 GPH
Input Hose Size
Min Height Drain Clearance
Connects to 1/2 pvc pipe


  • The siphon should be installed in the lowest part of the the watering tray.
  • The siphoning stops when the water height drops to 1/4″.
  • Slightly tilt the watering tray so that water flows toward the siphon. You can place spacers underneath the opposite corner of the watering tray to that of the siphon.
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