One of the first designs we considered was the treadle pump. Many of the treadle pump plans available on the internet are copies of the version detailed in the blog Danielle posted below. The number of people who have successfully duplicated is enticing, however, the pump is large and bulky. Because of this, we decided to investigate smaller, hand pumps.
For the purposes of the Northampton Community Garden, we want to make the water storage device and pump unobtrusive and discreet. Our current plan is composed of a buried 50 gallon barrel, a plastic gutter system and a handmade hand pump. We have found the following pump designs, which require little more than 1" thinwall PVC about 24" long, 1" end cap, 1" street L, 24" fiberglass tent pole, 2 long screws that fit tightly in the hollow tent pole, 10-24 nut and bolt, a piece of plastic cutting board cut to fit snugly inside the PVC tube, some scrap inner tube rubber, a wooden disk for a handle, a little bit of Snoodle.
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