heres first steps, i layed it out
the venturi is very complex, we can get into that later

its basically a waterline that has a shaped interior designed to draw in air. The air bubbles are mixed with the solutions and form almost an aerosol. The water gets so oxygenated that it literally oxidizes on contact if you get it right. Once u get to a certain level of oxygen, the water starts to foam though. I'm still checking out these thresholds.

Anyway here goes the first few steps. Just know bell siphons are a bitch and dont blame me if it floods your place. This is a strong suction, 40 pounds based on 5 gallons of water, but my plant is growing 2 inches a day and the leaves are getting gigantic.

1. drill hole in center of bottom of bucket with drillsaw this is a 1" size

2. install these fittins. hell i dont even know what they are i found them at home depot. they are just basically 1" screw in male on 1 side with 1" female hole on other. then its got this metal screw thing and a rubber seal. i found this is the most best fitting possible through aquaponics, i just wish i knew what the hell it was.

3. this is what will later be the siphon. a 3" pvc pipe with an end cap. I use a metal file and grind little v shaped teeth. you can make as teeth as you want. these teeth allow water to pass through and ensure when the bucket drains its drained from the lowest point ensuring a full drain. dont cut the pipe until you know the exact distance it needs to support the pot. the bell siphon acts as a pillar to hold some of the weight of the pot, lavarock, and massive would-be tree

4. this is a pot, it fits perfectly in the 5 gallon bucket, its very generic i got it at home depot. it fits perfectly into the 5 gallon bucket. I guess any one would do but it must be sturdy, and be a snug fit. let me know if this is an issue i might be able to find out the brand pot

5. then i wrap it with electric tape. this thing has to be sealed airtight or it wont work right. these are the first steps, stay posted.

note:

by the way creating a bell siphon, and understanding that technology can make you a hydroponic wizard. you could flood a 300 gallon bed in 30 seconds or drain it just as fast, this has so many applications and the efficiency is off the charts as it is a mechanical action and requires no timers.