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AquaParts Bell Siphons


A Bell Siphon is an elegant way to drain your grow bed in a flood and drain aquaponics system without using a timer to turn your pump on and off. 


Why use a siphon?


  • No more timer - You will no longer need nor want a timer to control your pump.  This eliminates:

  1. The cost of the timer
  2. The risk of timer failure
  3. The cost of the electricity needed to run the timer

  • Pump runs continuously - Pumps that run continuously suffer less wear and tear.   This may result in a longer pump life.
  • More aeration -  If you are diverting part of your water stream back into your fish tank for aeration, using a siphon to drain your beds will increase the aeration you deliver to your fish tank (since aeration based on diverting a portion of the water stream only works while your pump is running).
  • Educational opportunity – A bell siphon is loaded with basic physics and with our window at the top of the Bell, you can see the physics in action.  This creates a great opportunity to teach students about partial vacuums, low pressure, pressure equalization, the impact of flow rates on siphon preformance, and the force behind it all – gravity.  

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