thanks for the reply.
what about this design
http://photos.yahoo.com/bc/the_shindogg ... %26.view=t
since the o/v bod does not go all the way down, we save valuable tank space while fixing all the pitfalls you describe above?
Simple question-
why is the acryic box needed for an internal o/v design? why not just put the Durso right in your tank with no box? surely some type of grating in the inlet of the pipe will serve as a guard to sucking up animals into the drain?
Advantages:
more tank space
easier to construct...
