Will this sump work

[Hondacrx2]

Ok I don't have holes for a sump. So I want to know if this idea will work. I will set a tank below mine. Then start a siphon that will run to the lower tank into a box with different media. Then the water will flow into the tank. Where a pump will push the water back up a tube to a the tank. I know the tube with the siphon will have to have the correct flow to match the pump.

Now the semi complicated part. I want to add a piece where a air pump will connect at the crest of the siphon tube. This way when the power would go out the siphone would stop and not overflow the filter tank. (Kind of like a sponge filter works)

Now the question.

How much water can a 2,400 gph pump push up a 3ft vertical line to the tank?

 

[Hondacrx2]

Ok I have looked at the sticky's and am still confused .

 

[Hondacrx2]

Ok what goes at the top of the T? A air pump? And if so when the power would go out it would shut down the siphon? And must the intake sit right below water or can it be a few inches down?

 

[Oughtsix]

The yellow part is a check valve for sucking out the air from the overflow pipe.
The top of the white pipe is left open to the air. You can cap it off if you put a small air hole in the cap. This will make it quieter.
The intake sets the water level in the tank. The water level will be just above the intake level.
The water level will fall to the level of the T in the intake pipe during a power outage. When the power comes back on the intake pipe will fill and the siphon with automatically restart.

 

[Hondacrx2]

If I use a 2,400gph pump I'll need like 31/4" PVC pipe correct? The intake has to be more then the out right? Also what will be a rough estimate on my flow with a 2,400gph pump on a 4ft vertical? The math confuse me haha.


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[Hondacrx2]

So how does max head work that's the only thing I didn't get yet? If a pump is rated at 10ft head. It will pump its full gph up till 9'11"?


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[fish n chips]

put a ball cock/stoper valve on the down pipe

 

[Jdj211]

I have some of the same questions as you. I'm going to have a pump in the 2,500 gph range for my sump as well and I was also wondering what diameter pipe to use for the intake.


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[Hondacrx2]

Intake tube is in the sticky. 3" does 2,500gph I believe but double check. I just want to know how much flow a pump loses on the out side.


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[turningitred]

I could be wrong but I was under the impression that head pressure was more specific to the particular pump. In other words, two different 2500gph pumps could have different head pressures at 4 feet? I say go for the intake size from the sticky and give it a shot. At least your overflow will be able to handle the flow.

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