Quote:
Originally Posted by Aquamechanic
2 problems. You can't get another hole into such a tight area and still have enough integrity in the glass and the bigger issue is that there is a strong chance that aquarium has a tempered bottom after it was drilled at factory so cannot be drilled again.
You can engineer something similar (2 drains, no emergency) using both existing holes as drains and just have your return over the top of the aquarium rather than through bottom
AM
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Thanks, after doing a bunch of research yesterday I was afraid of that. Didn't realize some manufacturers tempered glass after drilling till yesterday. I had that thought too, just running it without an emergency drain. I think my sump is big enough to handle the amount of water from the tank of there is a power outage but I'll have to make sure to have a high water sensor in the sump to turn off my return pump if my drains ever clog.
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