drilling tanks: side vs bottom

[spacepony]

Out of curiousity, what are the pros and cons of drilling bottom vs side for the overflow? I can see that if a bottom drilled tank failed at the bulkhead, there is much more potential for a complete disaster, but what else?

 

[jennm]

Most tanks have tempered bottoms. You can't drill them.

Pre-drilled (reef-ready) tanks have the holes drilled by the manufacturer, and then the bottom is tempered afterward.

As such, for after-market drilling, the back or side is usually the only option.

Jenn

 

[myvwrock]

JennM;500586 wrote: Most tanks have tempered bottoms. You can't drill them.

Pre-drilled (reef-ready) tanks have the holes drilled by the manufacturer, and then the bottom is tempered afterward.

As such, for after-market drilling, the back or side is usually the only option.

Jenn

:yes::up:

 

[spacepony]

Aaaaah! I have been misreading somewhere....(I thought tempered was the better one to drill) Still, are there other benefits to having a bottom drilled overflow system?

 

[grouper therapy]

Here is a end/side overflow I did for musicalocean
<fieldset class="gc-fieldset">
<legend> Attached files </legend>

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class="gc-images" title="overflow.jpg[/IMG] style="max-width:300px" /></a> </fieldset>