Overflow- Where did you get yours?

So I drilled the tank this past weekend. Turned out well if I do say so myself. I am making my own overflow, I will show you how it turns out!

The start
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The water wasnt getting hot at all, i was just cleaning the area of dust etc...

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nice work! Drilling holes in a perfectly good tank can be a little scary at first!

I have drilled and installed custom top-to-bottom overflows in my last two tanks because i like using the "Herbie" overflow method. I had the first box built by a local guy but built my last one myself. All you need is a table saw and a decent saw blade with as many teeth as possible to cut the teeth in the overflow. Its a little tedious but def not what i would call difficult.

Are you going to make one long box for both overflows? You want to make sure you have enough total space between the teeth to suit your return pump flow rate or the box can get a little noisy. I tried to keep my box as small as possible but should prob have made it a tiny bit bigger to allow more flow at a lower velocity through each "tooth"

-nick
 
How much space did you leave in between each one? Yes the box on the inside will be thin but stretch across the entire back wall. I will have a box on the outside of the tank (I am getting all my acrylic tonight yayyy) to control my water level better and to make it pretty much silent. I will have 3 drains on the external box, 2 normal and 1 "emergency" that is up higher than the other two. I will have to post pics :)
 
FWIW... the glass holes boxes are fairly noisy unless you run them with REALLY low flow. I have the 700gph box on my tank and water flowing into the box is definitely the loudest part of my system.

Functionally they are great, but I won't be buying another due to the noise. I've talked to several local reefers and seen a handful of local setups using glass holes boxes, including tanks at my LFS which uses glass holes boxes exclusively on all their tanks. They are noisy, it's the bottom line... so I know it's not just my setup.
 
Good thing I decided not to get one- for my set up I am aiming at minimal noise, although I am not one of those people who requires absolute silence I don't want to hear rushing water or anything
 
Good thing I decided not to get one- for my set up I am aiming at minimal noise, although I am not one of those people who requires absolute silence I don't want to hear rushing water or anything
You should look into the Beananimal writeup in the DIY section for the silent/failsafe overflow system...I drilled and built the overflow he describes and it is dead silent (and failsafe as well)...plus, i think it enables the most efficient amount of surface skimming of any type of overflow.
 
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