Iwaki RD30...for those that have experience with one, I have a few questions please

[Vinas]

I believe that you do have a point with the heat dump problem but I think that if you can regulated the voltage, you can control the heat dump and hopefully the noise with not too much of a hit on pressure.

If you mount a 90mm fan at the back of the pump then heat dump goes down considerably. Also, the ac120 pumps are capable of much higher output than the 24vdc models. Like others have posted it depends on model numbers. My panworld/blueline does 480GPH @ 13.5'.

More here:
http://www.marinedepot.com/pumps_pan..._px_ps-ap.html