Drain setup?

[Fish Tank Travis]

For your 260, I’d recommend two of the Jebao DCP 8000’s. That’s what I run on my 220, and I get about 1600gph of flow at about 55-60% power. They have extremely fine adjustability because you can adjust them up or down a single percentage point at a time.

As for the bulkheads, if you can drill larger ones, I would definitely do that. Even if you were to use both 3/4” pipes at full siphon, that’s only about 800gph.

 

[jaws7777]

 

[jandb]

Thanks. I like the 2 pump idea. The tank is going in my office so I won’t be there over the weekends and wouldn’t want a failure and not be around.

It’s gonna be tough to enlarge the drains. They can’t go forward any more nearer to the overflow box and there needs to be room on the outside for it to fit on the stand. Any thoughts?

 

[DN328]

If it's not possible, you could try as is. Else using the larger standpipe as the main siphon also sounds applealing.

Whatever you decide, make sure you add a strainer to the siphon drain. That should help to minimize large objects clogging the drain. Nothing is guaranteed, but I feel better having it on than not.

 

[aotechs]

Drilling the panel behind the existing plumbing is always an option for returns. You are then free to use all of the existing holes for drains and run new plumbing for the returns. I have done similar in the past for overflows with only two or three holes.

You could go the other way and drill your emergency drain out the back as well. Don't forget about a drain for water changes as well. I have a garden hose adaptor connected to one drain and water the yard/plants with it.

 

[jandb]

So here's an update. I decided to go with the Jeboa DCP 1800. I have the tank set up in the garage for now just to water test it and tune things. I kept the 3/4" overflow as the full siphon, 3/4 as trickle and 1 1/2" as dry emergency. I have the pump running at 28 watts! It's moving water but the overflow is maxed out. I don't plan on overstocking but I feel like that can't be that much flow. Would you flip flop the 1 1/2" and 3/4" drains. I could throttle the 1 1/2" way back but still have much more flow than I currently have.

On a side note the pump is dead quiet. I'm used to Reeflos so it's a big departure. I didn't even realize this was running til water was pouring into the sump.

 

[jaws7777]

So here's an update. I decided to go with the Jeboa DCP 1800. I have the tank set up in the garage for now just to water test it and tune things. I kept the 3/4" overflow as the full siphon, 3/4 as trickle and 1 1/2" as dry emergency. I have the pump running at 28 watts! It's moving water but the overflow is maxed out. I don't plan on overstocking but I feel like that can't be that much flow. Would you flip flop the 1 1/2" and 3/4" drains. I could throttle the 1 1/2" way back but still have much more flow than I currently have.

On a side note the pump is dead quiet. I'm used to Reeflos so it's a big departure. I didn't even realize this was running til water was pouring into the sump.

Before you change anything you need.to figure out how that 28watts tanslates to gph.
To give you an idea these attachements are for dct models and don't take into account head loss but gives me an idea.

So for a dct 120 at setting number 4. Without head loss I'd be at 1500ish gph.

Setting 4 = 49% power. .49X3170(maxgph)=1553 gph

 

[jaws7777]

If the tank is going in my house I definitely want the edrains handling the full flow. Close the siphon see what happens, then close the siphon and trickle. If the edrains handles the flow your good. Increase it if need be but make sure that e drain is handling it

 

[jandb]

Before you change anything you need.to figure out how that 28watts tanslates to gph.
To give you an idea these attachements are for dct models and don't take into account head loss but gives me an idea.

So for a dct 120 at setting number 4. Without head loss I'd be at 1500ish gph.

Setting 4 = 49% power. .49X3170(maxgph)=1553 gph
View attachment 1308430 View attachment 1308431

Good point there. By some napkin math I get somewhere in the 495 gallon/hour range with head height. I don't know that that's enough for a ~270 gallon tank?

 

[Fish Tank Travis]

DCP 1800 or 8000?