I am going to place an order this coming week, but gotta figure out which pump first...

I am running an peristaltic type pump right now on my JBJ ATO/kalk reactor, but need to replace the pump and it keeps going out on me. I cant decide between the SP 300 peristaltic or the Aqualifter. Big $$$ difference, but not really sure which one would be best. I only need to pump about 250 ml/hr up a height of 4 feet. What real differences are we looking at here?

that would be at the limits of the aqualifter as far as head pressure is concerned.

Ahh. I think Sam mentioned that, but I wasn't sure if it'd still dribble just enough at that height.