How many overflows ?

[D1J8Z]

I am considering buying a 120 rimless tank, I was going with two overflows, but Jared seems to think one overflow with a bigger drain is the way to go.

Opinions ?

 

[rookie07]

2 overflows! you always want a backup overflow incase 1 gets clogged.

 

[ming]

I've never had an overflow clogged. What is clogging your overflow box? Are you using it as a refugium and growing algae in there or something?

 

[rookie07]

Hope for best, plan for worst...

Ive never had an overflow get clogged, but if it did happen, it would suck(we are talking overflow, not overflow box)!

 

[ming]

Doesn't matter to me if its an overflow box or overflow semi circle, so long as its not a HANG on overflow where it uses a siphon principal.

 

[D1J8Z]

OK, maybe I wasnt 100% clear. I am used to the idea of two drains and two overflow boxes. While he feels one bigger drain will not only give more room in the tank but be more than enough to be efficient.

 

[reefnewbe]

IMO, a inch & half or 2" overflow with a silencer is more than enough (you would need something really large to clog it)

 

[Dre]

I am considering buying a 120 rimless tank, I was going with two overflows, but Jared seems to think one overflow with a bigger drain is the way to go.

Opinions ?

One or two overflow boxes, bigger drain whatever, it dependes on the amount of water you are turning over.For example 600GPH 1 overflow box or small drain .1200GPH 2 overflow box or bigger drain.

 

[PolandSpring]

the less overflows the more room for rock and coral

 

[mr_X]

a single drain will be fine for your tank. a 1.5 inch is good. a 2" drain is plenty for your application.will you be adding a surface skimmer? i had a friend of mine make me a couple surface skimmer boxes for 2 drains i just put in the back of an 8' shallow tanki'm in the process of cycling. i'm sure he'll make you one if you throw him a couple bucks or a piece of coral or something (please excuse the sandstorm pic)-

 

[Dre]

Nice Mr x.

 

[D1J8Z]

Ive really been considering plumbing it through the bottom of the tank, haven't really considered even plumbing it out the back just bc I am not sure I like the look and if the tank is ever going to be in a living room I hate when you can walk by a tank and see all the pipes running out the back its just not a clean look.

 

[NYreefNoob]

plan on a cutom built tank ? if so just make the over flow box able to put 2 drains in it, one for use and one for back up or can if custom tank have it as a external which leaves you even more space