Drilling my tank

[silveradobobby]

I'm in the process of build a tank from scratch and have it all built but need to know where to drill the holes for the overflows. I will 2 corner overflower with returns and wanted to see if there is a layout or template for where the holes go so they fit in the over flowboxes? I will be using 1 1/2 bulk heads for drains and 3/4 for returns

 

[bimmerzs]

Hi,
You may want to find out if the bottom is tempered or not. [smilie=wink.gif]

Cheers,

 

[silveradobobby]

It's not cause I built the tank myself and cut and bought the glass myself

 

[bimmerzs]

@silveradobobby wrote:

Now thats really from scratch. [smilie=lol.gif] Placement is up to you, you can drill them in either one or both corners, on one side(room divider) or in the middle. How thick is the glass?

Cheers,

 

[silveradobobby]

1/2 inch thick I'm doing dual overflows in the corners.

 

[blfuller123]

Just make sure you keep the edge distance on your holes. If you have 1/2 inch glass, you should keep the edge of the hole at least 1 inch away from it.

 

[melev]

I would err on the side of caution. The holes should be 4" on center from the edge, minimum.