Where to get overflow box made? Where to drill?

[cmantis]

I was wondering where I can get an overflow box made or get the materials cut to make it myself? I live in Brooklyn Heights but work in Morningside but can travel.

Also what size box would you recommend? My tanks are 36l x 18w x 17h. I have two 1" drains and two 1/2" returns. I will be using a 900gpg rio+3100 but will be returning from one sump to two tanks with tee's so will loose some. I could get a bigger pump though.

Last question where to drill the holes along the top back of the tanks. Like how far down should the drains and returns be?

Thanks

 

[thirty6]

i am in a similar situation and have been reading older threads on this topic. i also looked up the calfo design overflow which looks really simple (so im clearly missing something with it)

or check out glass holes, they have nice stuff that comes in an actual kit
http://www.beananimal.com/projects/silent-and-fail-safe-aquarium-overflow-system.aspx

 

[cmantis]

I forgot to mention that I am going with a beananimal overflow but with only two drains (herbie style). I did look into the glass-holes kits but heard they were more noisy. I already ordered all the plumbing parts and now just need an overflow. However I am not sure what size I need or how to build it. Hopefully someone here can help me build it or knows an acrylic shop I can go to.

 

[Jaftica]

i have a glass holes kit, its dead silent

 

[3450500]

i sent you a pm

 

[rkaragozler]

you can drill the back of the tank and add a coast to coast overflow box and then add your herbie style overflow set up, All you need is 4 pieces of glass and a tube of silicone

 

[cmantis]

So now I am thinking using a weir inside and external to save some space. Using 2x 1" drains on a 40g breeder (36x18x17) what sizes should I make each. Looks like I am going to have to go to a glass shop and try to make these myself (what thickness glass should I ask for). Are both just 4 sided boxes or does the front of the weir have to be shorter or angled for skimming? Also for the holes in the tank between the two boxes should they be 2x 1" or 2x 1/2" (those are my two saw sizes - and how many holes can each saw cut before it is no good). If anyone wants to help make these for me that would be great as this is my first time and I am pressed for time. Thanks in advance.

 

[rkaragozler]

you can do internal weir, and external overflow, may i ask why 2x1" drains for a 40 gallon tank? drilling to many holes in such a short distance is not recommended. as far as glass thickness goes you can do 3/8". as far as holes go, you need to use bulkheads and their dimensions very from manufacturer to manufacturer. most 1" bulkheads use a 2 3/8" hole

 

[cmantis]

I was told a 1" bulkhead uses a 1 3/4" hole.

 

[rkaragozler]

i'm sorry for misinforming you earliear you are right, I was thinking 1 1/2" bulkhead

 

[mheaven]

This was my drain setup for my old 40b... 2- 1.5" drains. I had a dart pump as a return. Worked like a charm.