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Joined: Aug 2004
Posts: 179
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Joined: Aug 2004
Posts: 179 |
I've been reading an older book called "Management of Lakes and Ponds" by George Bennett (2nd edition 1970, pg 47) and they mention a hydraulic air gun to raise water from under the thermocline up to the surface. The device is supposed to be quite efficient but unfortunately there are no photo's or line drawings of the device. This device may pre-date the aerators we have available today but I was interested if anybody has any details about the construction of this device.
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