New 75 gallon drilled tank

[Dartfrog1]

I'm going to pickup my new 75 gallon drilled with a center overflow next week and I was thinking of using both holes in the overflow for drains and was wondering if anyone else has done this? It seems like it would be a tight fit (if it even will) and don't want to waste my $$$ or my time just to find out it won't fit. Thanks

 

[nautical_nathaniel]

Are the two holes the same size?

 

[Dartfrog1]

Yes, there both 1" holes.