Overflow options for DSA 225

[KSU_WILDCAT]

Trying to plan my build and came accross some concerns for my overflow. Like I said my DSA 225 is on the way and I am wanting to run a silent overflow either herbie or bean animal. The DSA tanks have 3-1" (I believe) drains and 2-3/4" returns in a center overflow. Will basically one 1" full siphon be enough? My gut tells me I'm crazy to think this will work. If not what are my options. Thanks for the help.

 

[1fishkeeper]

Here is how I did my DSA. As you can see it can be done with the way they have it set up.

 

[E Rosewater]

I have one with no standpipe with a ball valve attached, I run this at full siphon so things can't settle in the bottom my overflow. Then the other two standpipes in place as intended (Dursos) I run it so only a very small amount of flow goes through two standpipes. I also attached gallon ziplock bags to the weirs with zipties, the overflow runs damn near silent.

I'm putting ~800gph through my siphon and I had dial in the ball valve to keep it at siphon.

 

[KSU_WILDCAT]

1 fish
looks like you are getting a little flow into the middle standpipe. Any noise from it? Also any idea what you are flowing? That's the setup I had in my head.

I always had plans of running 1000-1100 GPH so i could run Rosewaters method. Let me make sure I'm getting this right, you have basically have a bulkhead fitting on the bottom for your tank for the siphon and then the other 2 are standpipes for emergency flow? How tall are your other 2 standpipes?

Thanks again for the help

 

[E Rosewater]

Yes, it's just a bulkhead connected to a ball valve (I wish it were a gate valve though). The advantage is I don't have any build up of anything in the bottom of my overflow, disadvantage is with the returns off the overflow drains completely, I think it's about 6 gallons of water, I built my sump with this in mind so I don't have an overflow. The other two are for the small amount that's not taken by the siphon, and emergency. I have shut down the ball valve and the other two pipes can handle it.

They're the standpipes that came with the tank. I'm not sure exactly how tall they are low enough that they had a waterfall noise as the water entered the overflow, the ziplocks took care of that.

 

[leveldrummer]

Yes, it's just a bulkhead connected to a ball valve (I wish it were a gate valve though). The advantage is I don't have any build up of anything in the bottom of my overflow, disadvantage is with the returns off the overflow drains completely, I think it's about 6 gallons of water, I built my sump with this in mind so I don't have an overflow. The other two are for the small amount that's not taken by the siphon, and emergency. I have shut down the ball valve and the other two pipes can handle it.

They're the standpipes that came with the tank. I'm not sure exactly how tall they are low enough that they had a waterfall noise as the water entered the overflow, the ziplocks took care of that.

What exactly did you do with ziplock bags? is it just a ramp for the water to ride to the overflow water level?

 

[1fishkeeper]

I should have taken another picture of it. I was still playing around with it when I took that picture. Now I get just a couple of drips that make it into that pipe and it is dead quiet.

 

[E Rosewater]

What exactly did you do with ziplock bags? is it just a ramp for the water to ride to the overflow water level?

I zip tied the bags to the top of the weirs on the inside of the overflow. The water travels between the overflow wall and the bag eliminating the waterfall.