Flow to and from Sump

[JennyFlow]

I thought if you have a 2 inch pipe from the overflow to the sump, you should also have a two inch pipe from sump to tank? Then I saw a fluid dynamics video on youtube that said, if I understood correctly, your tank to sump pipe should be larger than your sump to tank pipe. Is this right?

Before I just figured the rates should match otherwise the water level in the sump will eventually overflow or empty, or is a new lower/higher equilibrium established. I'm so bad w all this fluid dynamics stuff!

 

[LIreefguy]

My return pipe to the sump is 2 inches the flow to take is 1 1/4.


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[mcgyvr]

You thought wrong

Do you only have a single drain (tank to sump)? Is it always submerged (full siphon)?

 

[Daddi0]

The overflow plumbing from your tank to sump should be able to handle more flow than you are pumping into your tank.
Cheers! Mark

 

[hkgar]

The overflow plumbing from your tank to sump should be able to handle more flow than you are pumping into your tank.
Cheers! Mark

+1 Yup. I have 3/4 inch sump to tank and 2 1.0 combining to 1 1.5 tank to sump.

 

[billdogg]

The overflow plumbing from your tank to sump should be able to handle more flow than you are pumping into your tank.
Cheers! Mark

+1 Yup. I have 3/4 inch sump to tank and 2 1.0 combining to 1 1.5 tank to sump.

^^^This^^^

I have 3/4" sump to tank, 2 x 1.5" tank to sump.