Bell Siphon for Aquaponic

A Bell Siphon allows for the continuous filling and draining of a container even with a constant water inflow. It is commonly used in aquaponic systems to create an "ebb and flow" cycle. This ensures that plants receive a regular supply of nutrient-rich water followed by fresh air (oxygen) to the roots.

The individual parts are connected by screwing them together. The height at which the water stops draining can be adjusted slightly by the depth of the lid screwing. It is a good idea to put a rubber seal under the nut. I recommend printing with more perimeter for better air tightness. To make it easier to start the system, you can add an elbow at the bottom. For easier termination, a lid with a suction tube can be used. To prevent the siphon from clogging, it is a good idea to place a sieve around it. Multiple siphon sizes available. Choose the size according to the incoming water; the inlet must be smaller than the outlet, but not too small.

Variant 1 (95 mm2)

• Upper height (incl. cap): 50 mm

• Trigger level: ~43 mm

• Bottom pipe length: 80 mm (fits 22 mm hole)

• Internal diameter: 13 mm (Cross-section: 95 mm2)

Variant 2 (227 mm2)

• Upper height (incl. cap): 45 mm

• Trigger level: ~37 mm

• Bottom pipe length: 70 mm (fits 24 mm hole)

• Internal diameter: 17 mm (Cross-section: 227 mm2)

Variant 3 (380 mm2)

• Upper height (incl. cap): 45 mm

• Trigger level: ~37 mm

• Bottom pipe length: 70 mm (fits 30 mm hole)

• Internal diameter: 22 mm (Cross-section: 380 mm2)