Increase return pump power AND lower DT water level

[iLMaRiO]

I'm trying to reach the 10x return pump flow as suggested for triton method.
To do that, I have to increase the return pump power to 80%, but doing this will also increase the display tank water level too much.

Any idea on how to decrease the DT water level but still increasing the return pump flow ? If I remove water, the water will be removed from the sump return chamber, obvisouly, as the skimmer chamber is stable.

 

[newbie2014]

I assume this happens even though your drain line is wide open?

 

[KStatefan]

Increase size of overflow.

 

[Eagle_Steve]

What type of drain setup are you running? Durso? Herbie? Bean Animal? if unsure, post a pic of the overflow and drains.

 

[iLMaRiO]

Increase size of overflow.

I can't

 

[iLMaRiO]

What type of drain setup are you running? Durso? Herbie? Bean Animal? if unsure, post a pic of the overflow and drains.

It's a simple hole going directly to the skimme chamber in the sump.

 

[mfinn]

You can only do what the overflow will allow.

 

[iLMaRiO]

You can only do what the overflow will allow.

The overflow is able to carry much more water but the issue is that the water will go outside the tank if I use the pump at full power.

Probably the hole is too high in the tank

 

[mfinn]

The height of the hole doesn't ( within reason) have much to do with it.
The single drain setup isn't very efficient compared to a 2 drain hole setup where a herbie design can be used.
When water goes down the drain air is drawn in too which interrupts the smooth flow of water.
With a herbie drain, you install a valve on one and dial it down until only water is draining. But this can fluctuate sometimes with no warning running the risk of the tank overfilling. This is where the second drain comes into play. It's the emergency drain and handles the extra overflow. Some people like to keep just a trickle running in this drain. ( I do)
You don't want to use a valve on a single drain system. The risk of overflowing the tank is very real, especially when shooting for a high turn over rate.
The single drain ( and size of the drain) limits how much you can push.

 

[mfinn]

Maybe a picture of the tank and overflow inside the tank can shed some light on this.

 

[nereefpat]

It's a simple hole going directly to the skimme chamber in the sump.

Can you cut out or widen some teeth?

 

[iLMaRiO]

Can you cut out or widen some teeth?

it's just a cover, i can remove it but it doesn't change.
The issue is not how to bring down 4000 or 5000 liters, i'll able to do that, but when running the retun pump at full power, the water level in the tank goes up to the tank border, it's just a couple of mm under the border. That's too much, that's why i'm trying to figure out how to decrease the level.

 

[Eagle_Steve]

it's just a cover, i can remove it but it doesn't change.
The issue is not how to bring down 4000 or 5000 liters, i'll able to do that, but when running the retun pump at full power, the water level in the tank goes up to the tank border, it's just a couple of mm under the border. That's too much, that's why i'm trying to figure out how to decrease the level.

No way to do it with that style of overflow if it is simply installed in a fixed hole in the tank. You would have to drill a new hole lower and then seal up the hole previously used. Or drill another hole and install one more of those drains, so water flow would be more at a lower water level in the DT.

 

[newbie2014]

it's just a cover, i can remove it but it doesn't change.
The issue is not how to bring down 4000 or 5000 liters, i'll able to do that, but when running the retun pump at full power, the water level in the tank goes up to the tank border, it's just a couple of mm under the border. That's too much, that's why i'm trying to figure out how to decrease the level.

That’s odd. If drain = return, then water level should be the same.
Or maybe my logic is flaw.

 

[iLMaRiO]

That’s odd. If drain = return, then water level should be the same.
Or maybe my logic is flaw.

the pump is in pressure, the overflow not, that's why the water level change in the DT when you power on the pump.

 

[mfinn]

well, with only the current information we have here, you will only be able to turn the pump up just so much and no more. It's the design of the system.

 

[iLMaRiO]

any idea on how to fulfill triton specs?
any drawback if return flow is not 10x the water volume? (full water volume or just the display tank volume?)

 

[Dakota_reef]

any idea on how to fulfill triton specs?
any drawback if return flow is not 10x the water volume? (full water volume or just the display tank volume?)

I'm not sure what the triton method is, but I'm going to be running 600 GPH on my 150g return for more dwell time in my sump. I used to run 10x in my old tank, but recently I've read and seen so much more discussions on limiting return volume to 3-5x