""What do you think about the depths/vs the influenced area in that pic? If we continued that on up, do you think a diffuser at 20' deep could influence 2 acres?" Answer - yes to an extent. The currents may dissipate by the time it reaches the 2 ac area. Amount of influence will be highly dependent on amount of air (cfm) going to the diffuser and size of the diffuser. If the bubble plume is weak when it reaches the surface the distance the currents will extend becomes proportionally less. However this weak bubble plume will be stronger with the diffuser at 20 ft compared to if the same systems and diffuser was located 10 - 14ft deep. How much resistance there is to the spread of the bubble plume is highly dependent on water temperature. Less resistance to mixing as the water temperature drops toward 39F at the temp water mixes easiest. Thus the influence area becomes greater at 39F and less as the water increases in temp. Wind direction and speed amount have some influence.

I am not a big 'fan' of the diffuser design picture above. Any proof data how well it mixes water? The design makes ganged or connected or multiple head diffusers rather difficult. Many diffusers are built unique but do not perform better than others especially if there are no supporting tested, measured, or comparative data. In most cases a poorly designed diffuser is usually better than no diffuser.

Last edited by Bill Cody; 01/07/17 07:44 PM.

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