First rdwc build, looking for in put

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Hey guys n gals.

I think I've had enough dirt for now. I started with a dwc tote setup, things are going well so I upgraded.

It is in a 4x4 tent. With 2 Mars hydro tsl2000 led lights. The totes inside the tent are 47liter, the main res outside is 107liter. They aren't full of course, i havent determined volume yet.

2inch pvc on the bottom. 1inch line uptop. Running a 400gph water pump. Not getting quite as much flow as I would like. I have heard this type of fallponic system is able to run without airstones? I have some and a large air pump if required.

The water falling from the 90⁰ elbow does create quite a few bubbles as it pours in.

Thanks guys, all criticism is welcomed.

 

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Would adding 1/2" fittings to each 90⁰ elbow increase the pressure and increase oxygen, or would the restricted flow negate the effect?

I still have to add some reflectix, I will likely lay it across the totes. Creating a separate climate for the bins, to keep res temps down.

Should I add air stones to the main res, to help with mixing nutrients and adding oxygen?

 

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I'm hoping to able to leave this system for 6 days at a time. I think I will get a 2nd res setup and install a float valve to keep water levels up.

Is there any reason the 2nd res that will feed the main res via a float valve can't have nutrients in it also? I realize some solution may become unoxygenated as it sits in the small 1/4" line, would that be an issue? I could try and keep the line as short as possible. Maybe like 3feet

 

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Well. It works. Only grew 2 plants, but they are monsters. Underestimated the growth of hydro