The goal of the project is to make and use and store low pressure air for local back garden projects. Click Here for a playlist about it. So far to pump water to plants and to demonstrate 2 types of air driven hydroponics?aquaponics systems. If you check this playlist it might give some ideas about how to generate this low pressure air CHECK This Why air? It is because it is simpler. There is no wiring diagrams, and you can distribute it in ordinary garden hose or 3/8 irrigation tubing and you need no valves in your pumps. You can make low pressure air with a trompe at a tiny dam. (just pipes going down into the pool behind the dam and collecting air bubbles! or with a compressor on a wind pump. To use the air to pump water, all you need is a 1/4 inch diameter tube! in a bucket of water. Began the pneumatic grid project in August 2012 to run a pallet garden by pumping water with air to have water cycling to the plants. The water is pumped to the top of the planter and drips down. This provides nutrients to the roots but also oxygen and heat is moved and the waste CO2 etc is taken away. At first used T-joint airlift pumps ( design contribution to ourwindowfarms.org) but later used "airlift in a bucket" which is cheaper and easier to make and install. Expanded "pneumatic grid" and it now runs through ordinary irrigation tubing (very cheap) because the project extends over a hundred feet and I use it to run 2 vertical pallet planters and 6 pallet gardens a fish pond and a "titanic" planter. At first had one little bubble pump running it but now have 2 of them. About 7 watts total. They produce 3 psi but it could run on 1 psi or less. In fact pumped water 6 ft high using about 5 inches water pressure! (1 psi is about 27 inches of water pressure)
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