Yeah why not? Pumping water down is not hard, if you needed to pump air 10M below and displace water that would be hard. This is why Venturi is extremely useful for aeration under high depths. I would recommend using this over air pumps. Its much cheaper, and in most cases it is easily adaptable to existing pounds that already have a high pressure water system.
Such a painfully boring, slow, tedious video, yet I stayed to the end to see him say that its a shit design and you should basically watch someone else's video... I cannot comprehend this..
