Flooding ??

[JoshH]

I have as mag drive myself but it's a bit of an energy hogg other than that it's a good pump. I have no personal experience with any others so I don't really want to suggest one. But as long as you find one that matches your flow needs you should be good.

 

[Crabs McJones]

Eshopps makes an overflow, I used one for two years before going drilled. For yours id go with either the PF1000 or PF1200 depended on how much flow you want.
http://www.eshopps.com/products/overflowboxes/pf1200/