Dan over at Plant Abundance just posted this video. He showcases the construction of this plan from OSU (also linked in his video description). Neat little rig. Worth a share; but it also got me thinking. Has anyone experimented with windmills to power something like this? Obviously you need quite a bit of air pressure to force bubbles up through that much water. Food for thought...
I found in another thread that vortex brewers are better than the ones with fish tank pumps (I could imagine that the bubbler stone gets slightly yucky over time).
I found some instructions and would like to know which one is the best for the job (and probably to clean, I guess I have to clean it?)?
Brewer 1 brewer2 brewer3 brewer 4 they look all very similar but the devil is probably in the detail.
HOw much electricity do these pumps need? And which pumps are of quality and last a bit longer?