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			#11  
			
			
			
			
			
		 
		
		
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			 Instead of using the 90deg elbow, maybe the 45deg one might make things quieter. 
		
	
		
		
		
		
		
	
		
		
	
	
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			#12  
			
			
			
			
			
		 
		
		
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			 i suspect the noise is more form air being sucked down the one drain line along with the water.  not sure changing the elbow would help much.  you need a way to balance the flow in the drain. 
		
	
		
		
		
		
		
	
		
		
	
	
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			#13  
			
			
			
			
			
		 
		
		
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			 It seems to be from the air that gets drawn into the line at the bottom of the standpipe. 
		
	
		
		
		
		
		
	
		
		
	
	
	The 90 is glued in; going to try pipe insulation.  | 
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			#14  
			
			
			
			
			
		 
		
		
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			 Quote: 
	
 How that worked for you, I'm having the same issue. Sent from my iPhone using Tapatalk  | 
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			#15  
			
			
			
			
			
		 
		
		
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			 After reading this I really need to dial in my bean animal drain again kinda got used to the noise after I changed my return pump forgot it used to be so quiet 
		
	
		
		
		
		
			
				__________________ 
		
		
		
		
	
		
		
	
	
	Current tank---125 gallon mixed reef 60 gallon sump, Reef octopus nw200 skimmer, Rapid LEDs, Maxspec gyre, Mp10s, Fuge, Biweekly 20% WC, QT everything  | 
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			#16  
			
			
			
			
			
		 
		
		
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			 I was just over in Victoria and the line wasn't insulated yet. 
		
	
		
		
		
		
		
	
		
		
	
	
	It will undoubtedly help with the noise. As I said before I am running the same configuration on another tank, except with scheduled 40 and flex PVC pipe and it is not eably quieter.  | 
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			#17  
			
			
			
			
			
		 
		
		
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			 So how you switch from the megaflow to an herbie style on an existing running aquarium? 
		
	
		
		
		
		
		
	
		
		
	
	
	Is going to be a bit challenging Sent from my iPhone using Tapatalk  | 
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			#18  
			
			
			
			
			
		 
		
		
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			 Not really , just drain overflow. Swap return for gated drain . Return will run over the back . 
		
	
		
		
		
		
		
	
		
		
	
	
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			#19  
			
			
			
			
			
		 
		
		
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			 +1 
		
	
		
		
		
		
			
				__________________ 
		
		
		
		
	
		
		
	
	
	Ian~  | 
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			#20  
			
			
			
			
			
		 
		
		
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			 Quote: 
	
 Yes, going to do that, just need to figure it out what I need for material, cause previous owner of the tank used silicone and barb fitting. Sent from my iPhone using Tapatalk  |