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 - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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