Quote Originally Posted by caferacermike View Post
I'm completely boggled as to how 2x 1" suction tubes cannot handle a Mag 7.5. I hate to say that I think there is something wrong with your plumbing. I run a single Eheim 1262 on 1 1" suction line, that's about 800-900GPH through a single 1" drain and I could still go larger.
Oh, it's a Mag 9.5. Does that make a difference, Mike? My plumbing has some 90's and tee's in it because of the way I built the stand. I know that will slow things down a bit. All I know is, if I open the ball valve all the way, I get water hitting the glass brace in the center of the tank. It WILL overflow if I don't cut it back a bit.