Single drain Overflow System for a 55 gallón tank

[Andrés garza]

Good afternoon, everyone.
I have a 55-gallon aquarium that I’m planning to convert into a marine setup. My idea is to drill a single 45mm hole, install a 1-inch bulkhead, and run the drain pipe down to the sump — without adding a secondary (emergency) drain. Would this setup be feasible? I’m asking because I saw a YouTube video of a 55-gallon tank using a very similar configuration: just one 42mm hole and no backup drain line. I’ll share the link below so you can let me know if this approach would work safely.




Please view the video

 

[UncommonSense]

This can work, but it is not a safe, or quiet way to do it!

If nothing else, use a 3D printed weir box, siliconed in, and two holes/bulkheads; this way you can at least make the drains quiet, and have some leeway if plumbing starts to clog!

in addition, many off the shelf big box store tanks over the last several years have had tempered glass used throughout their construction, due to one materials shortage or another… definitely check for tempering before you drill; tempered glass will shatter if drilled!

 

[Dom]

Those scraps on the door are an insulator. In an enclosed space, heat will become an issue.