Originally Posted by RobChuck
I don't know the specifics of why the Japanese Iwaki costs more than the American, but I can tell you from experience that the Japanese motored Iwakis run quieter and last longer than the American motored pumps.
I currently have an Iwaki MD70RLT running my closed loop and a MD55RLT running my skimmer. Both of these pumps are Japanese and have been very reliable. I also just replaced a Little Giant return pump with a flow rated Pan World, the 100PX-X model. It uses the same design as the Japanese pumps, but the cooling fan is a little quieter on this pump than the two Iwakis.
You can't go wrong with Iwaki pumps (Japanese motored), but if money is a concern, the Pan World pumps work just as well, run a little quieter, and have a cool yellow casing!
robchuk, in reading your form on the pan world external pump, i would like to switch from my quiet 1 4000 and was wondering how much cooler they run, i have 1 in the sump and 1 for my closed loop, do you think it would help to go to a different pump or stick with the quiet 1, thanks.