Bulk heads and Bean Animal?

[Jaengle]

I have a used tank I am setting up, ordering bulk heads and pvc tonight.. Hopefully.

2 questions

1. I have 4 holes, bottom drilled, 2 at 2.25 inches and 2 at 1.5" (see picture, which is a view from under the tank). What style drain/overflow should I use? Bean etc? Going straight into sump in the stand under the tank.

2. Which bulkheads do you thing work the best, threaded both ways, slips or mixed??

Thank you in advance...

 

[KrisReef]

I’d be concerned with the diameter of the bulkhead and having clearance to turn and tighten the fittings in place. Don’t ask how I learned this lesson.

I like threads on both ends, but whatever floats your boat and hold water is good.