|
As to where, the typical source for the Indian small-scale inner-tube bags is digester gas, fed directly to a venturi/carburetor.
It's pretty easy to make digester gas at home. All you need is an airtight drum filled with waste, some cow manure and water (absolutely no air) and a hose to attach that to your balloon or storage container. If you use a rigid storage container and want some pressure, you'll need a compressor attached to that, but if the gas production is large enough, you can also use that to power the compressor.
|