I use a single 3/4hp rotary vane compressor located in one of the barns to supply the high volume/low pressure air to the diffusers in my half acre each prawn ponds. I am still on the original carbon flaps. I also have a regenerative compressor sitting back in reserve but have never needed it. With only one motor running that is pushing air rather than water,the power cost is much lower, no freeze-up problems in winter, only 1" black poly line out to the ponds rather than wires, too. I made a manifold from the 1" line out of galvanized pipe nipples and have two 1/2" ball valves to control air volume to the diffusers located at the pond bottom. In addition to eliminating thermo-cline/stratification plus immediately adding oxygen to the bottom of the pond, it also carries the nitrogen and CO2 up to surface resulting in far less algae.
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Today's Featured Article - Gettin My Old Tractor Home - by Clayton Sweeney. My name is Clayton Sweeney. I am from Southern Maryland in a small town called Lothian. I am 20 and my father and I are the proud owner of a 1954 Allis Chalmers WD-45. When I was 18, I dated a girl in the next county over. Her family are tobacco farmers. It was a cold Thanksgiving evening, and we were going up to her Grandparents house. As we passed one of their barns, I noticed something orange in the corner of my eye in this old shed. It was pretty dark and I asked what it was
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1965 International Harvester McCormick Farmall cub tractor 2,500. Two owner tractor. My grandfather bought new in 1966, then we inherited it. Have all the paperwork original manual and all maintenance records. It starts and moves. Comes with underbelly mower, plough, and some other attachments.
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