Drain and Return Questions : Help

[Scubado63]

I have a predrilled 200 gallon tank with corner overflows (2: 1" and 2 :3/4"), I would like to use the herbie method for quiet. My question is there a way to do this with bottom drilled tank without having to run returns over the top. Do you really needs a emergency drain. If everything gets stopped up and my pump runs dry in the return section, it still doesn't overflow the tank, am I missing something...Looking for any help I can get...Thanks

 

[SeaDweller]

I'm running a 240 that is peninsula style with only 2 holes drilled, and I'm running Herbie. I am running the 1.5" hole as my main drain and the 1.0" as the emergency, but I should have done it the other way around. I am running the return over the top of the overflow box, but it's not noticeable anyway, as its in the corner by the wall. If I had your set up with two OF boxes, I would run dual Herbie for sure. However, if you want to use one of the holes as a return, then I guess technically you could run a main full siphon drain and the two 3/4" could be the emergencies, so in essence it's similar to Bean Animal, just not contained in one overflow. If your main siphon gets stuck lets say in the way you present it, yes it will overflow your tank as the pump will dump the contents of the sump into your DT. You need to have an emergency drain.

I haven't had too much success quieting down Durso set ups, but I've seen plenty of tanks with dead quiet Dursos. That's one other option you could do (dual Durso), but we typically don't do that anymore and I'd say Herbie is the least you want to do.

 

[CarrieB]

I just set mine up with one overflow as ordinary Herbie and the other as one siphon drain and one return.

If you do one overflow with emergency and return then the water will get stagnant.

See http://gmacreef.com/herbie-dual-overflows/.

You need to make sure your emergency drain can handle the full capacity of your return pump.

 

[Scubado63]

Thanks, might have to try different versions and see what might work best

 

[Scubado63]

still trying to see where I could have an over flow of my tank, I built my sump so that if all the water in DT stopped going to sump ie: clogged drain, that even if my pump empties my sump return section, it will not over flow my display tank, ...what am I missing, where would my tank overflow, even if fully clogged....