OK, I,m not drilling so its two stacks. Of course they can be whatever size, but my drains underneath are 3/4in. no matter what, although I will run 1.25in. drain pipes to the sump.
So its two Duraso or the one berbie.
Did I not make a good point before? If running both as Duraso, the return flow needs to be handled by one, right? If not and one plugs then we have problems. So thus, may as well run herbie? And limited the return to whatever a 3/4in drain can handle?
I will have a bazzillion gph in the tank from Vortechs so thats not a problem.