Slow down overflow rate

[MyGiants]

If you only restrict the overflow the amount of water the pump is pumping is still the same. You run high risk of overflowing your tank. The only safe way to reduce the flow is to reduce the inlet water. Put a valve on the return water from the pump slow it down. Or get a smaller pump..

 

[Jc1119]

Actually, if you restrict the drainpipe with a valve you increase your drain capacity by quite a bit. It allows a drain to at full siphon, or no air entering the line. Much more quiet as well. It's the main behind a "Herbie" and Beanimal" drain setup. Backup drain required.

I think the screens over the overflows will accomplish what you want though. Less intrusive to your system if you like it as is. Other than sucking fish in lol.


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[Drstrangelove]

So dr strange kinda like a river with a waterfall at the end up stream it's slow going and smooth but closet you get to the water fall the faster the water movement is.... The reason I am even asking is incase I go with a mbuna set up when smaller they may not make it


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Interesting question.

This is what it seems to me. Both effects are related to the conversion of potential energy to kinetic energy. In the case of both, water is seeking to reach a lower point, which in the waterfall is simply flowing over a set of rocks, while in a tank might be simply going up a tube and then down into a sump that is lower than the water in the tank. Since we see speed increasing (which is an indication of increasing kinetic force) this represents reduction of potential energy. Water in the sump and at the bottom of the fall would have less potential energy. To get the water back into the tank takes pumps of course which is needed to raise the water back up into the tank. Part of that force from the pumps is kept by the water as potential energy enabling it to repeat the cycle of overflowing.

So, yes, the manner of the water over flowing a waterfall does look very similar to the manner of water entering the tube because they are following similar mechanics.

Technically, the actual flow would look a bit different due to the 360 degree sweep of a tube versus the waterfall which is laminar, turbulent and horizontal/vertical. These are not things I understand too well. Much more complex, I think, but generally similar.

Very interesting observation.

 

[ragin_cajun]

Huh?


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[rodger]

Huh?


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I agree.