Single drain Overflow System for a 55 gallón tank ?

Andrés Garza

New member
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



 
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