Do I have a deadspot under my spray bar?

richieh10

I am currently running a custom river tank with dimensions of 72’x6’x8’, a long and narrow tank. The canister filter intake is on the right side of the tank while the outflow is on the left side, distributed by a 1 ft spray bar.

Due to the design of the tank, it is impossible to place the spray bar under the water surface. Therefore, the spray bar is placed so that it is shooting water at the front glass, limiting the amount of gaseous exchange as I am running pressurized co2.

The problem is that there is a 1 inch area on the far left side of the tank where the spray bar is unable to reach. That same area also happens to be where the co2 diffuser is located. My worry is that the water and co2 in that 1 inch area is unable to circulate to the opposite side of the tank where the intake.

PS: My tank is fully filled to the top! The back wall is shorter than the front and side walls so it looks like its not filled to the top.
 

Wrench

Drop an algae wafer right in that spot...if it sits still it's a dead spot...if it starts too swirl around and move to the other end of the tank you are good, just because the surface is not totally broken doesnt mean it's a dead spot,if water is circulating in that area I would say you are fine.
 
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richieh10

Drop an algae wafer right in that spot...if it sits still it's a dead spot...if it starts too swirl around and move to the other end of the tank you are good, just because the surface is not totally broken doesnt mean it's a dead spot,if water is circulating in that area I would say you are fine.
I will have to try this when I get home tonight. But won’t the constant stream from the spray bar push the wafer to the left side of the tank where the diffuser is located. My water flow science is really bad hahha.
 
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Wrench

I will have to try this when I get home tonight. But won’t the constant stream from the spray bar push the wafer to the left side of the tank where the diffuser is located. My water flow science is really bad hahha.
Will it be bad for the diffuser? I do not use one and would not know.
All I do is drop a wafer and watch it travel along the surface of the water until it sinks to see how it flows, if I hit a spot where it sits and stops moving I adjust one of the wave makers until i get it to go away, maybe put an air stone in the bottom of that corner??? Make it break surface tension there.
 
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