[ambient]

I have never used a RIO in a watercooling setup. But I can say that they do last. My little bro works for a fish store. They have all kinds of pumps, he says its not to often that RIOs come back and he also says they sell those pumps the most. I have 4 rios running in my salt water aquarium right now, 2x200 a 2100 and a 3100. They've been runnin in my tank non stop for 3 years everday since I got the tank. Maybe the pumps some people are getting are refurbished? Or maybe it could be back pressure that the RIOs can't stand. I know my danner makes a lot of noise if there is air in it.