Durso vs full siphon

srobertb · May 8, 2023

New Tank arrival in the next week or so. I have all the equipment for an E-Drain + full siphon via 2, 1.5” pipes that run 15’ down to my basement. Goal is 1,000gph flow on a 210g tank.

So I’m good with a durso based on the conservative figure of 1500gph through a 1.5” pipe….and fantastic with 2, 1.5” Durso drains. Why would I run a full siphon? It’s 15’ in my basement so I don’t care about noise. There won’t be any noise at the display, right?

If noise at the display isn’t an issue with the Durso, should I run 2 Dursos or a Durso and a slightly higher E-drain?

I’ve done full siphon with a gate valve before and it can be finicky so I’m wondering if I’ve over thought this and should just run 2 dursos.

The_Paradox · May 8, 2023

The Durso will make some noise at the top of the stand pipe. How much it will bother you I can’t say. If you have quiet DC pumps you will notice it for sure though.
If you chamfer the e-overflow you should not have to mess with balance that much to keep it quiet.

srobertb · May 8, 2023

The_Paradox said:
The Durso will make some noise at the top of the stand pipe. How much it will bother you I can’t say. If you have quiet DC pumps you will notice it for sure though.

My use-case is a bit different as the pumps are in the basement. They’re silent upstairs.. 1.5” pipes each running 1/3 capacity (500gph)

Im hoping someone with a similar setup (or larger) will comment.

ca1ore · May 9, 2023

Even 500 gph though a 1.5" standpipe will make some noise - whether enough to bother you, well only you will know that. Why wouldn't you run them in a herbie configuration?

Troylee · May 9, 2023

I prefer full siphon but that’s just me..

FishTruck · May 9, 2023

Full siphon is silent... then... you will perseverate on the tiniest vibration noise from a powerhead instead. I think you will be happy either way, currently running full siphon on a BEAN. The only noise is from two power heads and trigger fish splashing water all over the place when they don't get fed on time.

Jason_MrFrags · May 9, 2023

1" pipe at full siphon drop 24" is 1700gph. 10ft drop would be 2500gph

srobertb · May 9, 2023

ca1ore said:
Even 500 gph though a 1.5" standpipe will make some noise - whether enough to bother you, well only you will know that. Why wouldn't you run them in a herbie configuration?

I probably will run a Herbie. Everything is designed for it. If I can drop stuff (like the gate valve) I’m all for it. I have the gate valve and everything dry fit. Just pondering. I’ve never run Durso so I thought I’d ask.