• We are currently upgrading MFK. thanks! -neo

1,000 GALLON MULTI TANK SUMP SYSTEM.

Most likely not 12 holes. I bet you can get at least 6. Of course how thick is the glass? If your doing a bunch of 40 gallon tanks you will be fine. I would just order two right off the bat if your cutting 1/2" glass

Yea, we are going to need 2-3 saws IMO. we have to drill (4) 75 gals, and (2) 100 gals.
 
Ok I have a good question. When doing these overflows we can get Polyethylene or ABS black. What plastic is better, which has a better silicone bond?
 
Ok I have a good question. When doing these overflows we can get Polyethylene or ABS black. What plastic is better, which has a better silicone bond?

I haven't worked with Polyethylene but I believe it is stronger than ABS. Because of the nature of the water pressure pushing the overflows into the sides of the tank I wouldn't worry about the mechanical bond too much. The bond will just have to be strong enough to keep it from leaking, it will not have to be strong enough to provide any sort of structural support. The water pressure will be providing a force pushing the plastic to the glass.

I think either would work well for overflows.
 
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