Add internal overflow

[John08007]

I have an undrilled 180g that I wanna drill. I was originally planning on adding one of the ghost type external overflows but am now reconsidering it. The tank will be up against a wall making it impossible to ever remove the overflow or bulkheads without emptying the tank. Now I'm thinking about having some 1/2" glass cut to make an overflow inside center back. My idea is to come out say 4", across 8-10" and then back 4", this will allow me to have 3 bulkheads. Thinking if I make the front piece about 2" shorter I can then make a black plexi u shape to fit around the glass with a weir at the top. I feel it would be better to make the overflow out of glass because of the silicone bond vs plastic-glass. Never understood how they attach those abs overflows.

Anyone ever do anything similar? Pics, suggestions?

 

[John08007]

Hasn't anyone added an internal overflow?

 

[BR260354]

Few things out there. Thinking about doing the same except to make an external refugium.

Here's one...
https://www.bulkreefsupply.com/content/post/howto-drill-aquariums-and-install-internal-overflow

 

[John08007]

Few things out there. Thinking about doing the same except to make an external refugium.

Here's one...
https://www.bulkreefsupply.com/content/post/howto-drill-aquariums-and-install-internal-overflow

I didn't even think of drilling the back top like that instead of the bottom. Just not sure about the plastic-glass bond, I think I'd use glass to construct it with a plenty cover with a Weir

 

[RocketEngineer]

Why would you ever need to remove the bulkheads with the tank running?

I get accessing the standpipes, but the bulkheads should stay in place.

 

[Mr. Roboto]

I didn't even think of drilling the back top like that instead of the bottom. Just not sure about the plastic-glass bond, I think I'd use glass to construct it with a plenty cover with a Weir

99.9% of the time if it is a tank with any size to it, the bottom is going to be tempered.

 

[BaliReefBox]

silicone is not the best stick but i thin sikaflex polyurethane will stick the acrylic to glass better.