drilling a tank that is set up and running

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Potamotrygon
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Jun 29, 2007
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i got a new tank from tenecor a couple of months ago. it is about 240 gallons. i am running 2 fx5's and it is not enough.. i was thinking of drilling the tank in the side up toward the top to run a 55 gallon sump. Can i do this when the tank is up and running? also do you need a special hole saw to do this or a regular hole saw?? Do they make any kind of strainer or something to put on the bulkhead like a strainer??

thanks in advance.
 
Just drain the tank low enough that you can hold a cloth underneath where your drilling. Go slow, and if you can, use a hole saw rated for acrylic. If not, a wood hole saw will work, just go slow.

That's assuming its an acrylic tank. If its glass, then you definitely need a diamond hole saw, and it would probably be better to drain the tank before drilling...
 
Drilling it while filled should be fine. I drilled my 110 acrylic while it had water in it. No biggie.
 
I would drill it through the back/bottom though. But that's just my preference.
 
Pharaoh;3721525; said:
I would drill it through the back/bottom though. But that's just my preference.

nolapete;3721541; said:
Acrylic sure, glass never. Bottom would be better than a side I agree.


why??

i have it in my bedroom it is a 6' x 32" x 2' tank, and i do not want it to stick out from the wall anymore that possible. The side i would drill is only a foot away from the back wall in my bedroom, so you would not really ever see the plumbing.
 
Resell would be the best reason I can think of for back vs. side.

I have drilled with water, no problems….

IF drilling the back, and you have a thin sheet of acrylic for color, it is better to drill it first… I have popped the thin crap out and that is a PITA to fix.
 
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