I have been looking at ways to make use of a pump to perform a few things, amongst them drip irrigate the gardens and aerate the 2 ponds. I want to minimise the use of electricity from the mains on the farm and would love to switch to solar but just too expensive. So i am looking if possible to harness windpower? My initial idea is to use a windmill to charge batteries(?) which in turn runs the electrical pump. The wind is pretty 'ok' in the evenings so i am thinking if instead how to design the windmill instead to run a water pump directly? Am i correct to assume that i will need to use the shaft being driven by the windmill to turn the water pump shaft but this will mean i need to have some sort of gear box which in makes the rotations fast enough to run the water pump? I don't want to spend money on a brand new windmill and instead will prefer to build one from plans and better still if i can make it myself. Looking forward to any comments, Cheers!