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  AquaParts Aquaponics Bell Siphon with Media Guard
Aquaponics Bell Siphon with Media Guard

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Our Price: $59.95

Product Code: CMFAS108

Media Guard Lid:

Siphon View Window:


AquaParts logoAquaParts Bell Siphon with Media Guard

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.

(Note: The design of this siphon assumes 12" of media depth.  It will not work properly with less than 11" or more than 13")

"Your siphons just arrived and holy cow! They are nice! We love the window. Alan you are Mr. Cool in my book."
Gina Cavaliero
Managing Director
Green Acre Aquaponics

Why use a siphon?Bell Siphon in Grow Bed

  •  No more timer - You will no longer need nor want a timer to control your pump.  This eliminates:
    • The cost of the timer
    • The risk of timer failure
    • 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.  In fact, if you watch the video below you can see Alan teaching a group of forth graders about the physics of siphons.

Window Option

For an additional $15 your siphon will come with a view window so you can see the siphon in action. We also include a cover to protect from algae build-up when you aren't viewing. Perfect for kids, kids at heart, and for diagnosing any problems with water flow through your siphon. Select just above the "Add to Cart" button on the right .

Media Guard Lid Option

For an additional $7.95 you can add a lid to your media guard to keep the grow media and algae out, and your grow bed looking neat and tidy.

How does it work?

Starting from the point of a drained grow bed, the grow bed will fill with water.  When the water level reaches the top of the Funnel inside the Bell, water will start running through the siphon and out through the Drain Pipes and into your tank. Soon, the siphon will “fire”.  At this point, the water in your grow bed will be rapidly drawn through the siphon and the water level in your grow bed will rapidly drop all the way to the base of your grow bed.  When this happens, air will enter the Bell through the slits at the bottom of the Bell, and the siphon will begin to “break”.  When the siphon breaks, water will stop flowing through the Drain Pipes.  Since the pump is running continuously, water will immediately begin to fill the grow bed and the cycle will repeat – indefinitely.

Average Customer Review: 5 of 5 | Total Reviews: 2 Write a review.

  0 of 0 people found the following review helpful:
Bell Siphon w/media Guard July 1, 2014
Reviewer: Clifford Burnley from Norwalk, OH United States  
These are great! They fit the Rubbermaid stock tanks I am using perfectly. Thanks!

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  0 of 0 people found the following review helpful:
Excellent Product! September 12, 2013
Reviewer: Randy Ford from Mission Viejo, CA United States  
I watched several YouTube videos on how to build a bell siphon.  One in particular was by a guy who said it took him 2 DAYS to get it working right. I thought for $60 bucks it was well worth it. It was so easy to install, literally just drill a hole, screw in the bulkhead and attach it. IT WAS DONE!  I did nothing to it, it just worked as they said it would. I would highly recommend getting the model with the window.  Everyone who comes over just cant quite grasp how it works and lifting the lid off makes it much easier to explain.  I have to be honest, there hasn't been one day that I go out to check on my grow beds that I don't lift that lid to watch it! I plan on adding 2 more grow beds and even though I could "probably" build my own, I am not messing with success.  I will buy them from the Aquaponic Store.

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