I've got 4 RW8s been running 6 months or so. One of them hummed a bit I took it out shook it and it stopped humming few days later it did the same thing so I shook it again (I was assuming the impeller was slightly out of spec) 6 months later no cleaning on any of them and all dead silent. Fr  the price point I'm really happy, but they are also the most expensive power heads I've used as well. 
I'll deal with a cord in the tank instead of a loud motor with a cord from the side of my tank and 5 times the price 
		
	
		
		
		
		
			
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				250G DD LED SPS  R.I.P. 
 180G LED SPS 
80"x36". 300G custom build  
 
Owner of Mountain Ridge Heating and Gas 
Class A gas fitter, HVAC
			 
		
		
		
		
	
		
		
	
	
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