Smitty,
I went with a Barracuda for my basement return. Even at that I had to close off the returns some to reduce the amount of flow through the sump. I have about 12 feet of head, so a Dart would not quite make it. The sequence pumps can handle being closed off at the output and will actually run less energy. I think you will be overdoining things with the Hammerhead. Also look at the Vortec for your circulation. I am very happy with how they are working in my tank (60X36X25).
|