Massive sub pumps or cut into return line for skimmer?

[StirCrazy]

Originally Posted by Myka

The baffles aren't to slow the water down. The baffles are simply to filter out the microbubbles. .

Myka, they do that by slowing the water down and smoothing out the flow, so the bubbles have time to rise to the top and pop. the exact purpose of baffles are either to controle water hight, or to slow down the movement of water enough to reduce turbulance and make it easier for bubble to leave the water stream.

Steve

[Myka]

Hustler, is there a PDF for this skimmer somewhere? I don't see much info on the website, like pump specs or anything. Did the pump come with it, or did you choose a pump for it separately?

Originally Posted by StirCrazy

Myka, they do that by slowing the water down and smoothing out the flow, so the bubbles have time to rise to the top and pop. the exact purpose of baffles are either to controle water hight, or to slow down the movement of water enough to reduce turbulance and make it easier for bubble to leave the water stream.

Steve

Steve, baffles don't slow the water down, unless you consider the linear compression as slowing it down. 9000 gph is 9000 gph, the only way to slow that down is to make less flow. Baffles work by forcing the water into a shallow shape...it takes less time for bubbles to rise 1" than to rise 10".

[StirCrazy]

Originally Posted by Myka

Steve, baffles don't slow the water down, unless you consider the linear compression as slowing it down. 9000 gph is 9000 gph, the only way to slow that down is to make less flow. Baffles work by forcing the water into a shallow shape...it takes less time for bubbles to rise 1" than to rise 10".

they do slow it down.. in most cases the actual baggle part of your sump will not allow the bubbles to be released, large ones maybe but not the micro bubbles. and I'll explain why with an example of the sump I built for my last tank.

I use 3 chambers the first is where everything is dumpped, so the water hits the first set of baffles. so now I am taking a large boddy of water with low flow, and forcing into a small body with high flow (throught the baffles) then it opens to another large area so we have a high velocity lamaner flow of water dumping into a large area. this auses the velocity of the water to slow right down, and it is here where you should get your bubbles released. I could go into Pressure changes befor, during and after the baffels but as long as we understand that the water does slow down after it leaves the baffels and dumps into a larger area then were good. my third chamber was just for the pump suctions so all my last set of baffles did was maintan the hight of the water in the middle chamber