Didnt get any replies to this post but figured I would share my recent experiences with the iwaki pump I just hooked up, it's very quiet seems like its built like a tank and pumps very well running all 3/4 in hosing and a 3/4 ball valve yet to do an actual test to see what it's capable of as I wanted it slowed for a iv sterilizer but as of now very happy with the purchase seeing as I picked one up used for only 40 dollars got a steal thanks eBay