Of all the five hydroponic systems that you’ve mentioned here, Ebb and Flow is the simplest and best one. It was probably the first system used by commercial growers and hobbyists both. My experience with it has been remarkable, not only in terms of excellent growth and yield, but also because of ease of use, care and maintenance!
Personally, I have always preferred an ebb and flow system with the dual-pump mechanism. This kind of system requires you to have two mechanical pumps; one feeds your plants with the nutrient solution and the other makes the solution return back to the reservoir. You can place the planting container straight on the floor, increasing the vertical space of your grow room. And since the reservoir in these systems is detachable, maintenance and adjustments are also easier compared to other hydroponic systems.
HI Dan and thanks for reading. If you've read my other stuff you've seen I'm a fan of ebb and flow as well.
>>>I have always preferred an ebb and flow system with the dual-pump mechanism. This kind of system requires you to have two mechanical pumps; one feeds your plants with the nutrient solution and the other makes the solution return back to the reservoir. You can place the planting container straight on the floor, increasing the vertical space of your grow room.
I'll have to ask you for more information here? Design pictures? Give us details. Is this a theory of yours or do you have a working set up?
>>>Ebb and Flow is the simplest and best one.
Best? That's arguable, but I agree ebb and flow is very effective because it floods the entire media. Some will argue that ebb and flow creates a salty line in the grow media at the flood level, and this needs to be rinsed weekly.
Simplest? I disagree. Ebb and flow requires a LARGE reservoir, enough to completely fill all the growing containers attached to it. With Top feed, we can get by with a much smaller reservoir, and waste less nutrients at water changes, and never worry about a salt line.
>>>one feeds your plants with the nutrient solution and the other makes the solution return back to the reservoir
Are you referring to a CAP type ebb and flow system, where we have two water pumps on timers and float switches? These systems are expensive and are not the most simple to set up. Or are you talking about a system where water pumps just run on timers and when they run dry they sit there and rattle until the timer goes off?
>>>You can place the planting container straight on the floor
Not exactly. We will still need some room for water to drain out. Think about a 5 gallon bucket of water with a water pump in it. It will pump the water out until it runs dry, leaving about 3" of water in the bucket. So the media still needs to at LEAST be above this, plus an additional 2" to compensate for more water draining out of the media after the pump turns off.
I love discussions on DIY growing systems! Keep in mind, I'm not trying to say you're wrong. I seriously love ebb and flow. But I'll have to challenge you to post some pictures of the design to which you are referring. It "sounds" like a good idea but without more info we don't know how it's set up. Looking forward to your response.