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  #1  
Old 07-06-2018, 07:40 PM
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Thank you for thinking this through with me.
I suppose the outside of my overflow could go to the outsides on the tank but that would look ugly.
I guess I will have to drill and connect the bottoms.
Doing this, either way. Will it decrease strength of that side?

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  #2  
Old 07-06-2018, 07:44 PM
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Look online. I remember seeing a site that showed how far from the edges to drill. It discusses glass thickness and hole sizes. Remember that you want your overflow box to be 3 or 4 inches deeper than the top of the weir.
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Old 07-06-2018, 10:52 PM
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One other thing. Do some research about the weir height. With a C2C the water flowing over will be very thin so you won't need to cut very low. I'm thinking 1/2" will give you lots of wiggle room as I'd be surprised if the flow is even 1/4" thick.
Figure out your potential flow rate and look around the web.
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