I tried 18 inch square paving stones and they work. Stand them up instead of on their bellies! You can go about 6 inches into the ground and...
Hi, Helen, I think gravitational vortex will work for you. But very hard to store the energy. You might be better off using the energy...
This year I was too busy at work to do much at the grid. I did manage to test some air pumps so that it can now work direct from a solar panel....
I don't have a stream with a half meter fall right now, that was just for people who had a stream. . In any case, a half meter fall is tiny and...
I have been using a low pressure pneumatic grid to water plants in my "pallet gardens" since August 2012 The air is provided by 2 aquarium bubble...
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